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Facetheory Regena-C Moisturiser M4 Pro
Facetheory

Facetheory Regena-C Moisturiser M4 Pro

Efficacy87/100IrritancyHigh
See all ingredients

Works for

Anti-aging
Retinol, Ferulic acid + 4 more
Works well
What the product description says
“Retinol has proven efficacy in expediting skin cell renewal, softening fine lines and tightening pores.”
Source: Facetheory US

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

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: ferulic acid.

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.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating~0.1–0.45%
Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~3.7–5.6%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.4–0.95%
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~0.1–0.4%
Sodium ascorbyl phosphateEffect: Low, below effective doseA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~0.05–0.25%
Moisturizing
Glycerin, Butyrospermum parkii butter + 13 more
Works
What the product description says
“Regena-C Moisturiser M4 Pro”
Source: Facetheory US

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.

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: butyrospermum parkii butter, caprylic/capric triglyceride.

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~3.9–5.8%
Butyrospermum parkii butterKey active· Emollient, OcclusiveEffect: HighA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~3.7–5.6%
Prunus amygdalus dulcis seedKey activeEffect: HighHelps soften the upper layer of the skin~2.7–4.1%
Glyceryl stearate seKey activeEffect: MediumUsed to stabilize the product formulations and works as an emollient~2–3%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~1.8–2.6%
Cetyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together~1.4–2.2%
Prunus armeniaca kernel oilKey active· EmollientEffect: HighAn emollient that helps soften the skin~1.3–1.9%
Olea europaea fruit oilKey active· EmollientEffect: MediumAn emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation~1–1.6%
Oryza sativa bran oilKey active· EmollientEffect: HighHelps soften the upper layer of the skin and might have some anti-oxidant properties~0.5–1.2%
PhospholipidsKey activeEffect: MediumEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.15–0.5%
Stearic acid· EmollientEffect: LowHelps oil and water mix together and works as an emollient~0.9–1.4%
Glyceryl caprylate· EmollientEffect: LowAn emollient that can also help water and oil mix together, as well as prevent bacteria growth in products~0.2–0.75%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.4–0.95%
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~0.1–0.4%
Argania spinosa kernel oilUnder-dosedAn emollient that helps soften the upper layer of the skin. Might have some weak anti-oxidant properties~0.1–0.4%
Anti-blemish
Not advertised by the brand · Retinol, Aloe barbadensis leaf juice + 2 more
Works well

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

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating~0.1–0.45%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.4–0.95%
Sodium ascorbyl phosphateUnder-dosedA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~0.05–0.25%
Rosmarinus officinalis leaf extractUnder-dosedCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.05–0.3%
Evens skin tone
Not advertised by the brand · Retinol, Ferulic acid
Works well

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

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: ferulic acid.

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.

RetinolHeroEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating~0.1–0.45%
Ferulic acidKey activeEffect: MediumA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
Anti-oxidation
Not advertised by the brand · Retinol, Ferulic acid + 6 more
Works well

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

RetinolKey activeEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating~0.1–0.45%
Ferulic acidKey activeEffect: HighA potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%~0.05–0.15%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~3.7–5.6%
Prunus armeniaca kernel oilEffect: LowAn emollient that helps soften the skin~1.3–1.9%
Argania spinosa kernel oilEffect: Low, below effective doseAn emollient that helps soften the upper layer of the skin. Might have some weak anti-oxidant properties~0.1–0.4%
Rosmarinus officinalis leaf extractEffect: Low, below effective doseCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.05–0.3%
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~0.1–0.4%
Sodium ascorbyl phosphateUnder-dosedA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C~0.05–0.25%
Exfoliation
Not advertised by the brand · Retinol
Works well

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: retinol.

RetinolKey activeEffect: HighTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating~0.1–0.45%

Can it cause trouble?

Irritancy
6 strong irritants: Sodium anisate, Citrus nobilis peel oil + 4 more — patch-test recommended
High risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Sodium anisateUsed as a fragranceHigh~0.35–0.8%est.
Citrus nobilis peel oilA plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skinHigh~0.3–0.7%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh0.485%
LinaloolA fragrance. Can be irritatingHigh0.005%
RetinolTwo steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritatingHigh~0.1–0.45%est.
Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~0.05–0.3%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~1.8–2.6%est.
Prunus armeniaca kernel oilAn emollient that helps soften the skinMedium~1.3–1.9%est.
Olea europaea fruit oilAn emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammationMedium~1–1.6%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~0.4–0.95%est.
Sodium levulinateA preservativeMedium~0.35–0.85%est.
Argania spinosa kernel oilAn emollient that helps soften the upper layer of the skin. Might have some weak anti-oxidant propertiesMedium~0.1–0.4%est.
Sodium ascorbyl phosphateA stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin CMedium~0.05–0.25%est.
Comedogenic
2 ingredients rated 2 or more on the 0–5 pore-clogging scale
2 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
Butyrospermum parkii butterA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals3/5~3.7–5.6%est.
Glyceryl stearate seUsed to stabilize the product formulations and works as an emollient2/5~2–3%est.
Alternatives
Cheaper, or higher on efficacy
Kojic Acid Turmeric Vita Capsule Cream
Medicube Kojic Acid Turmeric Vita Capsule Cream
Higher efficacy · 100/10089% match
$25.13
Retinol + Ferulic Anti Aging Wrinkle Cream
Dr Dennis Gross Retinol + Ferulic Anti Aging Wrinkle Cream
Higher efficacy · 100/10088% match
$77.00
View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~3.9–5.8%
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
Butyrospermum parkii butter~3.7–5.6%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-aging

A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals

More about Butyrospermum parkii butter
Prunus amygdalus dulcis seed~2.7–4.1%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Prunus amygdalus dulcis seed
Glyceryl stearate se~2–3%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

Used to stabilize the product formulations and works as an emollient

More about Glyceryl stearate se
Caprylic/capric triglyceride~1.8–2.6%
Key activeIrritant · 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
Cetyl alcohol~1.4–2.2%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together

More about Cetyl alcohol
Prunus armeniaca kernel oil~1.3–1.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

An emollient that helps soften the skin

More about Prunus armeniaca kernel oil
Olea europaea fruit oil~1–1.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation

More about Olea europaea fruit oil
Stearic acid~0.9–1.4%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Oryza sativa bran oil~0.5–1.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and might have some anti-oxidant properties

More about Oryza sativa bran oil
Aloe barbadensis leaf juice~0.4–0.95%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAntibacterialReduces irritationReduces rednessAnti-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
Sodium levulinate~0.35–0.85%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium levulinate
Sodium anisate~0.35–0.8%
Irritant · high
Irritation risk
High

Used as a fragrance

More about Sodium anisate
Citrus nobilis peel oil~0.3–0.7%
Irritant · high
Irritation risk
High

A plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skin

More about Citrus nobilis peel oil
Limonene0.485%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Linalool0.005%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Cetyl hydroxyethylcellulose~0.3–0.7%
Formula
Irritation risk
Low

Used to create a thicker product consistency and stabilize formulations

More about Cetyl hydroxyethylcellulose
Glyceryl caprylate~0.2–0.75%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products

More about Glyceryl caprylate
Xanthan gum~0.15–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Retinol~0.1–0.45%
Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high
Irritation risk
High
Works for
ExfoliationAnti-oxidationAnti-agingEvens skin toneAnti-blemishMattifying

Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol 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. It can, however, be quite irritating

More about Retinol
Phospholipids~0.15–0.5%
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
Tocopherol~0.1–0.4%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

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
Rosmarinus officinalis leaf extract~0.05–0.3%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-blemishAnti-oxidationAntibacterial

Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating

More about Rosmarinus officinalis leaf extract
Argania spinosa kernel oil~0.1–0.4%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidation

An emollient that helps soften the upper layer of the skin. Might have some weak anti-oxidant properties

More about Argania spinosa kernel oil
Sodium ascorbyl phosphate~0.05–0.25%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Anti-blemishAnti-oxidationAnti-aging

A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C

More about Sodium ascorbyl phosphate
Ferulic acid~0.05–0.15%
Key active
Irritation risk
Low
Works for
Anti-oxidationEvens skin toneAnti-inflammatoryAnti-aging

A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%

More about Ferulic acid
Sodium phytate~0.05–0.1%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Ingredient list view

Water, Glycerin, Butyrospermum parkii butter, Prunus amygdalus dulcis seed, Glyceryl stearate se, Caprylic/capric triglyceride, Cetyl alcohol, Prunus armeniaca kernel oil, Olea europaea fruit oil, Stearic acid, Oryza sativa bran oil, Aloe barbadensis leaf juice, Sodium levulinate, Sodium anisate, Citrus nobilis peel oil, Limonene, Linalool, Cetyl hydroxyethylcellulose, Glyceryl caprylate, Xanthan gum, Retinol, Phospholipids, Tocopherol, Rosmarinus officinalis leaf extract, Argania spinosa kernel oil, Sodium ascorbyl phosphate, Ferulic acid, Sodium phytate

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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
FacetheoryRegena-C Moisturiser M4 ProYOUR PRODUCTBeauty PieSuper Retinol + Vitamin C Night Renewal MoisturiserMedicubeKojic Acid Turmeric Vita Capsule CreamDr Dennis GrossRetinol + Ferulic Anti Aging Wrinkle Cream
Match—92%89%88%
Price—$42.83$25.13$77.00
Shared key ingredients—5 of 84 of 85 of 8
Key difference—DimethiconeNiacinamideLactic Acid
Irritancy High Medium Medium High
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 25 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Use of “natural” oils for moisturization: Review of olive, coconut, and sunflower seed oilonlinelibrary.wiley.com
  3. 3
    Study on the Composition of Rice Bran Oil and Its Higher Free Fatty Acids Valuelink.springer.com
  4. 4
    Safety Assessment of Citrus-Derived Peel Oils as Used in Cosmeticscir-safety.org
  5. 5
    Oxidized citrus oil (R-limonene): A frequent skin sensitizer in Europesciencedirect.com
  6. 6
    Air oxidation increases skin irritation from fragrance terpenesonlinelibrary.wiley.com
Facetheory Regena-C Moisturiser M4 Pro
FacetheoryRegena-C Moisturiser M4 Pro
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As an Amazon Associate, WIMJ earns from qualifying purchases.