Rejuvaus

Rejuvaus Repair & Refine ABC Serum

Name: Rejuvaus - Repair & Refine ABC Serum
Brand: Rejuvaus

Efficacy66/100IrritancyHigh

See all ingredients

Works for

Anti-aging

Retinal, Niacinamide + 8 more

Works well

What the product description says

“Our gentle treatment serum has a powerful dual action Antioxidant vitamins protect collagen from environmental damage, blue light and premature ageing.”

Source: N/A

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains retinal, niacinamide.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.2–0.8%

NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~5.2–7.7%

Aloe barbadensis leaf juiceEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~23–35%

UbiquinoneEffect: LowCoenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen~0.2–0.75%

TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~1.3–2%

Camellia sinensis leaf extractEffect: Low, below effective doseCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.2–0.75%

Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.35–0.8%

Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.35–0.8%

Galactomyces ferment filtrateUnder-dosedA yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores~0.15–0.7%

GluconolactoneUnder-dosedA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~0.1–0.35%

Evens skin tone

Retinal, Niacinamide + 5 more

Works well

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: retinal.

In addition, this product contains niacinamide. This ingredient (ingredients) might help reduce hyperpigmentation, but the effect, if any, is likely to be small.

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

Exfoliation

Allantoin, Lactic acid + 1 more

Not delivered

What the product description says

“Discover the wonders of our game-changing three-in-one ABC Serum to smooth skin texture, refine lines & restore radiance.”

Source: N/A

This product does not contain effective exfoliating ingredients. It might be able to deliver physical exfoliation, that is scrub off some of the dead cells on the surface of the skin. We do not recommend physical exfoliation, because it is not uniform (some bits of skin can get exfoliated too much while others not at all). It can also traumatize the skin and aggrevate acne and other skin conditions.

AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.15–0.65%

Anti-oxidation

Not advertised by the brand · Epilobium angustifolium flower/leaf/stem extract, Ubiquinone + 13 more

Works well

This product contains antioxidants (ubiquinone) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - epilobium angustifolium flower/leaf/stem extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Epilobium angustifolium flower/leaf/stem extractKey activeEffect: MediumA plant extract that might contain antioxidants~1.9–2.9%

UbiquinoneKey activeEffect: HighCoenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen~0.2–0.75%

Terminalia ferdinandiana fruit extractEffect: LowA plant extract that might have some anti-oxidant effect in skin, but evidence is lacking~2.6–4%

Chlorella vulgaris extractEffect: LowA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties~0.35–0.85%

Medicago sativa extractEffect: LowA plant extract that might help neutralize free radicals in skin~0.2–0.75%

Calendula officinalis flower extractEffect: LowA plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritating~0.15–0.65%

Zingiber officinale root extractEffect: LowA plant extract that can contain an irritating essential oil. Might have some anti-oxidant effect, but evidence is lacking~0.15–0.6%

Tocopheryl acetateEffect: Low, below effective doseA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.~0.2–0.75%

Cucumis sativus fruit extractEffect: Low, below effective doseMight be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effect~0.15–0.7%

BisabololEffect: Low, below effective doseAn active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties~0.15–0.65%

TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~1.3–2%

Camellia sinensis leaf extractUnder-dosedCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.2–0.75%

Moisturizing

Not advertised by the brand · Niacinamide, Glycerin + 28 more

Works well

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, hydrolyzed hyaluronic acid.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: cetylhydroxyproline palmitamide, brassica campestris sterols.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~5.2–7.7%

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.7–7.1%

Chlorella vulgaris extractKey activeEffect: MediumA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties~0.35–0.85%

PhospholipidsKey activeEffect: MediumEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.35–0.85%

Cetylhydroxyproline palmitamideKey active· EmollientEffect: HighA type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin~0.3–0.75%

Brassica campestris sterolsKey active· EmollientEffect: MediumHelp soften the upper layer of the skin~0.3–0.7%

HexyldecanolKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~0.3–0.75%

Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.2–0.7%

Bacillus fermentKey activeEffect: HighA product of bacterial fermentation. Can help attract water to the upper layer of the skin~0.2–0.7%

Plankton extractKey activeEffect: MediumCan help attract water to the upper layer of the skin~0.2–0.8%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.15–0.7%

SucroseKey active· HumectantEffect: HighCan help attract water to the upper layer of the skin. In crystal form, it can work as a gentle exfoliant, gentler than the salt scrub. Helps stabilize the emulsion~0.15–0.7%

Acetyl carnitine hclKey activeEffect: MediumMight be helpful in decreasing sebum production making the skin less oily. Is claimed to be able to support ceramide production in skin that leads to better hydration, but evidence is lacking. Is able to attract water to the upper layer of the skin~0.15–0.65%

Aloe barbadensis leaf juice· HumectantEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~23–35%

Lecithin· EmollientEffect: LowUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~1–1.5%

AlginEffect: LowUsed to thicken product formulation. Can help attract water to the upper layer of the skin~0.15–0.55%

Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.15–0.7%

Stearic acidEffect: Low, below effective doseHelps oil and water mix together and works as an emollient~0.35–0.85%

Caprylic/capric triglycerideUnder-dosedA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.4–0.95%

Simmondsia chinensis seed oilUnder-dosedSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.~0.35–0.8%

Persea gratissima oilUnder-dosedAn emollient that helps soften the skin and could be helpful in repairing its barrier function~0.35–0.8%

Avena sativa kernel oilUnder-dosedAn effective moisturizing and skin barrier repair ingredient. Helps calm down inflammation and has some anti-oxidant properties~0.2–0.7%

AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.15–0.65%

Anti-blemish

Not advertised by the brand · Niacinamide, Retinal + 6 more

Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide, retinal. These ingredients is used for treating acne and can have a noticeable effect.

Acetyl carnitine hclEffect: LowMight be helpful in decreasing sebum production making the skin less oily. Is claimed to be able to support ceramide production in skin that leads to better hydration, but evidence is lacking. Is able to attract water to the upper layer of the skin~0.15–0.65%

AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.15–0.65%

Galactomyces ferment filtrateEffect: Low, below effective doseA yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores~0.15–0.7%

Can it cause trouble?

Irritancy

4 strong irritants: Retinal, Zingiber officinale root extract + 2 more — patch-test recommended

High risk

We flagged 25 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Epilobium angustifolium flower/leaf/stem extractA plant extract that might contain antioxidantsHigh~1.9–2.9%est.

PullulanCreates a thin drying film on the skin resulting in a short-term tightening effectHigh~0.55–1.3%est.

Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~0.35–0.8%est.

RetinalOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritatingHigh~0.2–0.8%est.

Tasmannia lanceolata fruit/leaf extract—High~0.2–0.7%est.

Zingiber officinale root extractA plant extract that can contain an irritating essential oil. Might have some anti-oxidant effect, but evidence is lackingHigh~0.15–0.6%est.

Calendula officinalis flower extractA plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritatingHigh~0.15–0.65%est.

Cymbopogon flexuosus leaf oil—High~0.2–0.7%est.

Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.1–0.4%est.

Aloe barbadensis leaf juiceTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~23–35%est.

Terminalia ferdinandiana fruit extractA plant extract that might have some anti-oxidant effect in skin, but evidence is lackingMedium~2.6–4%est.

Chlorella vulgaris extractA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory propertiesMedium~0.35–0.85%est.

Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.35–0.8%est.

Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~0.4–0.95%est.

Plankton extractCan help attract water to the upper layer of the skinMedium~0.2–0.8%est.

Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.2–0.75%est.

Medicago sativa extractA plant extract that might help neutralize free radicals in skinMedium~0.2–0.75%est.

Cucumis sativus fruit extractMight be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effectMedium~0.15–0.7%est.

Simmondsia chinensis seed oilSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.Medium~0.35–0.8%est.

Persea gratissima oilAn emollient that helps soften the skin and could be helpful in repairing its barrier functionMedium~0.35–0.8%est.

1,2-hexanediolA preservativeMedium~0.2–0.7%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.65%est.

Potassium sorbateA preservativeMedium~0.15–0.5%est.

Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.15–0.7%est.

GluconolactoneA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~0.1–0.35%est.

Comedogenic

3 ingredients rated 2 or more on the 0–5 pore-clogging scale

3 flagged

These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.

IngredientFunctionRatingEst. amount

Chlorella vulgaris extractA plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties3/5~0.35–0.85%est.

Plankton extractCan help attract water to the upper layer of the skin3/5~0.2–0.8%est.

AlginUsed to thicken product formulation. Can help attract water to the upper layer of the skin3/5~0.15–0.55%est.

Alternatives

Cheaper, or higher on efficacy

REMEDY SCIENCE REMEDY for healthy aging

CheaperHigher efficacy · 100/10083% match

$35.00

Arencia Rice Mucin Glow Serum 30

CheaperHigher efficacy · 100/10082% match

$17.15

View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Aloe barbadensis leaf juice~23–35%

Irritant · medium

Irritation risk: Medium

Works for

MoisturizingReduces rednessReduces irritationAntibacterialAnti-inflammatoryAnti-blemishAnti-aging

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice

Niacinamide~5.2–7.7%

Hero · Moisturizing, Anti-blemish

Irritation risk: Low

Works for

Evens skin toneAnti-agingMoisturizingAnti-blemishReduces irritationAnti-inflammatoryAntibacterialReduces redness

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide

Glycerin~4.7–7.1%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin

Water~3.7–5.6%

Formula

Irritation risk: Low

Plain old water

More about Water

Terminalia ferdinandiana fruit extract~2.6–4%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A plant extract that might have some anti-oxidant effect in skin, but evidence is lacking

More about Terminalia ferdinandiana fruit extract

Epilobium angustifolium flower/leaf/stem extract~1.9–2.9%

Key activeIrritant · high

Irritation risk: High

Works for

Anti-oxidation

A plant extract that might contain antioxidants

More about Epilobium angustifolium flower/leaf/stem extract

Tocopherol~1.3–2%

Under-dosed

Irritation risk: Low

Works for

Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol

Xanthan gum~0.95–1.45%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Lecithin~1–1.5%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin

Sclerotium gum~0.55–1.3%

Formula

Irritation risk: Low

Used to create gel-like formulas and stabilize emulsions

More about Sclerotium gum

Pullulan~0.55–1.3%

Irritant · high

Irritation risk: High

Works for

Mattifying

Creates a thin drying film on the skin resulting in a short-term tightening effect

More about Pullulan

Pelvetia canaliculata extract~0.45–1.05%

Formula

Irritation risk: Low

More about Pelvetia canaliculata extract

Propanediol~0.45–1%

Formula

Irritation risk: Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol

Chlorella vulgaris extract~0.35–0.85%

Key activeComedogenic 3/5Irritant · medium

Irritation risk: Medium
Comedogenicity: 3/5

Works for

MoisturizingAnti-inflammatoryAnti-oxidation

A plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties

More about Chlorella vulgaris extract

Lactic acid~0.35–0.8%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid

Phospholipids~0.35–0.85%

Key active

Irritation risk: Low

Works for

Moisturizing

Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product

More about Phospholipids

Ascorbic acid~0.35–0.8%

Under-dosedIrritant · high

Irritation risk: High

Works for

Anti-oxidationEvens skin toneAnti-aging

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid

Caprylic/capric triglyceride~0.4–0.95%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride

Retinal~0.2–0.8%

Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high

Irritation risk: High

Works for

Anti-blemishAnti-agingEvens skin tone

One step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating

More about Retinal

Plankton extract~0.2–0.8%

Key activeComedogenic 3/5Irritant · medium

Irritation risk: Medium
Comedogenicity: 3/5

Works for

Moisturizing

Can help attract water to the upper layer of the skin

More about Plankton extract

Sucrose~0.15–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

Can help attract water to the upper layer of the skin. In crystal form, it can work as a gentle exfoliant, gentler than the salt scrub. Helps stabilize the emulsion

More about Sucrose

Hydrolyzed hyaluronic acid~0.2–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid

Sodium hyaluronate~0.15–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate

Allantoin~0.15–0.65%

Under-dosed

Irritation risk: Low

Works for

Anti-inflammatoryMoisturizingAnti-blemishReduces rednessReduces irritationExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin

Ubiquinone~0.2–0.75%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-oxidationAnti-aging

Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen

More about Ubiquinone

Tocopheryl acetate~0.2–0.75%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate

Tasmannia lanceolata fruit/leaf extract~0.2–0.7%

Irritant · high

Irritation risk: High

More about Tasmannia lanceolata fruit/leaf extract

Medicago sativa extract~0.2–0.75%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A plant extract that might help neutralize free radicals in skin

More about Medicago sativa extract

Galactomyces ferment filtrate~0.15–0.7%

Under-dosed

Irritation risk: Low

Works for

Anti-oxidationMoisturizingAnti-agingMattifyingEvens skin toneAnti-blemish

A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores

More about Galactomyces ferment filtrate

Bisabolol~0.15–0.65%

Formula

Irritation risk: Low

Works for

Anti-inflammatoryReduces irritationAnti-oxidation

An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties

More about Bisabolol

Zingiber officinale root extract~0.15–0.6%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

A plant extract that can contain an irritating essential oil. Might have some anti-oxidant effect, but evidence is lacking

More about Zingiber officinale root extract

Solanum aviculare fruit extract~0.15–0.7%

Formula

Irritation risk: Low

More about Solanum aviculare fruit extract

Cucumis sativus fruit extract~0.15–0.7%

Irritant · medium

Irritation risk: Medium

Works for

MoisturizingAnti-oxidation

Might be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effect

More about Cucumis sativus fruit extract

Simmondsia chinensis seed oil~0.35–0.8%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.

More about Simmondsia chinensis seed oil

Avena sativa kernel oil~0.2–0.7%

Under-dosed

Irritation risk: Low

Works for

Moisturizing

An effective moisturizing and skin barrier repair ingredient. Helps calm down inflammation and has some anti-oxidant properties

More about Avena sativa kernel oil

Bacillus ferment~0.2–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

A product of bacterial fermentation. Can help attract water to the upper layer of the skin

More about Bacillus ferment

Calendula officinalis flower extract~0.15–0.65%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

A plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritating

More about Calendula officinalis flower extract

Camellia sinensis leaf extract~0.2–0.75%

Under-dosed

Irritation risk: Low

Works for

AntibacterialAnti-oxidationAnti-agingAnti-blemishEvens skin toneMoisturizing

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

More about Camellia sinensis leaf extract

Cymbopogon flexuosus leaf oil~0.2–0.7%

Irritant · high

Irritation risk: High

More about Cymbopogon flexuosus leaf oil

Hexyldecanol~0.3–0.75%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin

More about Hexyldecanol

Cetylhydroxyproline palmitamide~0.3–0.75%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-inflammatoryReduces irritation

A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin

More about Cetylhydroxyproline palmitamide

Stearic acid~0.35–0.85%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid

Brassica campestris sterols~0.3–0.7%

Key active

Irritation risk: Low

Works for

Moisturizing

Help soften the upper layer of the skin

More about Brassica campestris sterols

Acetyl carnitine hcl~0.15–0.65%

Key active

Irritation risk: Low

Works for

MattifyingMoisturizingAnti-blemish

Might be helpful in decreasing sebum production making the skin less oily. Is claimed to be able to support ceramide production in skin that leads to better hydration, but evidence is lacking. Is able to attract water to the upper layer of the skin

More about Acetyl carnitine hcl

Persea gratissima oil~0.35–0.8%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

An emollient that helps soften the skin and could be helpful in repairing its barrier function

More about Persea gratissima oil

1,2-hexanediol~0.2–0.7%

Irritant · medium

Irritation risk: Medium

A preservative

More about 1,2-hexanediol

Sodium benzoate~0.25–0.5%

Formula

Irritation risk: Low

A preservative

More about Sodium benzoate

Citric acid~0.15–0.65%

Irritant · medium

Irritation risk: Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid

Algin~0.15–0.55%

Comedogenic 3/5

Irritation risk: Low
Comedogenicity: 3/5

Works for

Moisturizing

Used to thicken product formulation. Can help attract water to the upper layer of the skin

More about Algin

Potassium sorbate~0.15–0.5%

Irritant · medium

Irritation risk: Medium

A preservative

More about Potassium sorbate

Calcium citrate~0.1–0.5%

Formula

Irritation risk: Low

Helps stabilize the product formulation

More about Calcium citrate

Caprylyl glycol~0.15–0.7%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol

Polysorbate 20~0.15–0.5%

Formula

Irritation risk: Low

Works for

Cleansing

Helps oil and water mix together

More about Polysorbate 20

Gluconolactone~0.1–0.35%

Under-dosedIrritant · medium

Irritation risk: Medium

Works for

MoisturizingExfoliationEvens skin toneAnti-agingAnti-oxidationAnti-blemish

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconolactone

Benzyl alcohol~0.1–0.4%

Irritant · high

Irritation risk: High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol

Ingredient list view

Aloe barbadensis leaf juice, Niacinamide, Glycerin, Water, Terminalia ferdinandiana fruit extract, Epilobium angustifolium flower/leaf/stem extract, Tocopherol, Xanthan gum, Lecithin, Sclerotium gum, Pullulan, Pelvetia canaliculata extract, Propanediol, Chlorella vulgaris extract, Lactic acid, Phospholipids, Ascorbic acid, Caprylic/capric triglyceride, Retinal, Plankton extract, Sucrose, Hydrolyzed hyaluronic acid, Sodium hyaluronate, Allantoin, Ubiquinone, Tocopheryl acetate, Tasmannia lanceolata fruit/leaf extract, Medicago sativa extract, Galactomyces ferment filtrate, Bisabolol, Zingiber officinale root extract, Solanum aviculare fruit extract, Cucumis sativus fruit extract, Simmondsia chinensis seed oil, Avena sativa kernel oil, Bacillus ferment, Calendula officinalis flower extract, Camellia sinensis leaf extract, Cymbopogon flexuosus leaf oil, Hexyldecanol, Cetylhydroxyproline palmitamide, Stearic acid, Brassica campestris sterols, Acetyl carnitine hcl, Persea gratissima oil, 1,2-hexanediol, Sodium benzoate, Citric acid, Algin, Potassium sorbate, Calcium citrate, Caprylyl glycol, Polysorbate 20, Gluconolactone, Benzyl alcohol

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🇦🇺 Rejuvaus (AU)30 ml

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
	RejuvausRepair & Refine ABC SerumYOUR PRODUCT	REMEDY SCIENCEREMEDY for healthy aging	ArenciaRice Mucin Glow Serum 30	Purito SEOULTXA 6 Niacinamide 10 Retinal Serum
Match	—	83%	82%	80%
Price	—	$35.00	$17.15	$16.80
Shared key ingredients	—	10 of 21	8 of 21	7 of 21
Key difference	—	Retinol	Retinyl Palmitate	Adenosine
Irritancy	High	Medium	Medium	Medium
Drying alcohol	—	—	—	—
	View product	Shop	Shop	Shop

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Product summary

"Rejuvaus - Repair & Refine ABC Serum" is effective for: Anti-aging, Evens skin tone, Moisturizing and Anti-blemish

Ingredient callouts

A good concentration of Niacinamide (5.20% - 7.70%). Niacinamide is a well-studied multi-tasking active. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and improve the skin tone, reducing pigmentation marks.
This product contains acids (gluconolactone 0.10% - 0.35% and lactic acid 0.35% - 0.80%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). PHAs (gluconolactone) especially are great for improving skin hydration. They might be even able to stimulate the production of skin's natural humectants and support the healthy skin microbiome.
This product also contains Vitamin C (Ascorbic Acid). It can be an effective active for anti-aging and evening out the skin tone, but in this product it is used for stabilizing other ingredients in the formulation. In this concentration (0.35% - 0.80%) it cannot have a noticeable benefit for the skin.
This product contains an effective form of Retinoids (vitamin A): retinal 0.20% - 0.80%. Retinoids are potent multitasking actives. They work to improve and prevent early signs of aging, reduce hyperpigmentation (age spots and post-acne marks), and prevent inflamed blemishes and clogged pores. The downside of Retinoids is that they can be irritating. If you are not already using a Retinoid in your routine, it is best to start slowly and apply the Retinoid product only a few times per week. If your skin tolerates it well, you can gradually increase the frequency to daily.
Humectants (sodium hyaluronate 0.15% - 0.70%, hydrolyzed hyaluronic acid 0.20% - 0.70%, sucrose 0.15% - 0.70% and glycerin 4.70% - 7.10%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 41 studies and safety reviews.

1
Niacinamide - mechanisms of action and its topical use in dermatologyncbi.nlm.nih.gov
2
Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x ncbi.nlm.nih.gov
3
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
4
The chemotherapeutic potential of Terminalia ferdinandiana: Phytochemistry and bioactivityncbi.nlm.nih.gov
5
Therapeutic Potential of Polyphenols from Epilobium Angustifolium (Fireweed): Polyphenols from Fireweedresearchgate.net
6
Vitamin E in dermatologyncbi.nlm.nih.gov
7
Vitamin E and Skin Healthlpi.oregonstate.edu
8
Epidermal and dermal effects of topical lactic acidncbi.nlm.nih.gov
9
Dual Effects of Alpha-Hydroxy Acids on the Skinpdfs.semanticscholar.org
10
Retinoids in the treatment of skin aging: an overview of clinical efficacy and safetyncbi.nlm.nih.gov
11
Efficacy of a New Topical Nano-hyaluronic Acid in Humansncbi.nlm.nih.gov
12
Physiochemical properties and application of hyaluronic acid: a systematic reviewonlinelibrary.wiley.com
13
Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
14
Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
15
Profile of wound healing process induced by allantoinscielo.br
16
Antioxidant Activity and Cytotoxicity of Medicago sativa L. Seeds and Herb Extract on Skin Cellsncbi.nlm.nih.gov
17
Effects of galactomyces ferment filtrate on epidermal barrier marker caspase-14 in human skin cells.doi.org
18
Galactomyces fermentation filtrate prevents T helper 2-mediated reduction of filaggrin in an aryl hydrocarbon receptor-dependent manneronlinelibrary.wiley.com
19
The Effects of Essence-Formed Cosmetic Ingredients Containing the Galactomyces Ferment Filtrate on Skin Improvements in Keratinization, Pores, Sebum Excretion, Brightness and Acnee-ajbc.org
20
Antioxidants cinnamaldehyde and Galactomyces fermentation filtrate downregulate senescence marker CDKN2A/p16INK4A via NRF2 activation in keratinocytesjdsjournal.com
21
Galactomyces Ferment Filtrate Suppresses Reactive Oxygen Species Generation and Promotes Cellular Redox Balance in Human Melanocytes via Nrf2-ARE Pathwaypdfs.semanticscholar.org
22
Galactomyces Ferment Filtrate Suppresses Melanization and Oxidative Stress in Epidermal Melanocytesetd.ohiolink.edu
23
α-(-)-Bisabolol Reduces Pro-Inflammatory Cytokine Production and Ameliorates Skin Inflammationresearchgate.net
24
Some phytochemical, pharmacological and toxicological properties of ginger (Zingiber officinale Roscoe): A review of recent researchsciencedirect.com
25
Topical application of Calendula officinalis (L.): Formulation and evaluation of hydrophilic cream with antioxidant activitypdfs.semanticscholar.org
26
The seamy side of natural medicines: contact sensitization to arnica (Arnica montana L.) and marigold (Calendula officinalis L.)ncbi.nlm.nih.gov
27
Final report on the safety assessment of Calendula officinalis extract and Calendula officinalisncbi.nlm.nih.gov
28
Contact dermatitis as an adverse reaction to some topically used European herbal medicinal products – part 1: Achillea millefolium–Curcuma longaonlinelibrary.wiley.com
29
Topically applied L-carnitine effectively reduces sebum secretion in human skinonlinelibrary.wiley.com
30
The influence of alkane chain length on the skin irritation potential of 1,2-alkanediolsncbi.nlm.nih.gov
31
A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acnencbi.nlm.nih.gov
32
The Polyhydroxy Acid Gluconolactone Protects Against Ultraviolet Radiation in an In Vitro Model of Cutaneous Photoagingonlinelibrary.wiley.com
33
Applications of hydroxy acids: classification, mechanisms, and photoactivityncbi.nlm.nih.gov
34
The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris: a double-blinded within-person comparative studydovepress.com
35
A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimenncbi.nlm.nih.gov
36
The use of polyhydroxy acids (PHAs) in photoaged skin
37
Blackwell Publishing, Ltd. Alpha-hydroxyacids and carboxylic acidsonlinelibrary.wiley.com
38
An evaluation of a polyhydroxy acid skin care regimen in combination with azelaic acid 15% gel in rosacea patientsonlinelibrary.wiley.com
39
Aging Skin: Causes, Treatments, and Preventionsciencedirect.com
40
Clinical and cosmeceutical uses of hydroxyacidssciencedirect.com
41
Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Lightneostrata.neogen.gr

RejuvausRepair & Refine ABC Serum

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As an Amazon Associate, WIMJ earns from qualifying purchases.