Common Labs

Common Labs Vitamin C Brightening Sun Serum

Name: Common Labs - Vitamin C Brightening Sun Serum
Brand: Common Labs

Efficacy100/100IrritancyHigh

See all ingredients

Works for

Moisturizing

Niacinamide, C12-15 alkyl benzoate + 20 more

Works well

What the product description says

“Dewy texture with no stickiness, delivering a burst of hydration.”

Source: Lila Beauty

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, 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: linolenic acid, c12-15 alkyl benzoate.

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~1.9–2.3%

C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~1.6–2%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.3–0.6%

Linolenic acidKey active· EmollientEffect: HighAn emollient that helps soften the skin and calm down inflammation~0.2–0.4%

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~0.2–0.35%

GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~0.15–0.3%

Hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.15–0.25%

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~0.15–0.3%

Pantothenic acidKey activeEffect: HighHelps attract water to the upper layer of the skin and may help reduce inflammation in skin~0.15–0.25%

Saccharide isomerateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.15–0.25%

Sodium hyaluronate crosspolymerKey active· HumectantEffect: HighAttracts water into the upper layer of the skin~0.15–0.25%

CyanocobalaminKey activeEffect: HighCan support skin barrier function and reduce inflammation in skin~0.15–0.25%

Lactobacillus ferment lysateKey activeEffect: MediumA "broth" with parts of dead cells of lactobacteria. Might be helpful supporting diverse microbiome in skin, but evidence is lacking~0.15–0.25%

Dibutyl adipate· EmollientEffect: LowHelps soften the upper layer of the skin and create a nice product consistency~5.4–6.6%

Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~0.15–0.25%

Dibutyl ethylhexanoyl glutamideEffect: LowHelps improve the product texture and soften the upper layer of the skin~0.15–0.25%

Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.15–0.3%

Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.15–0.3%

BiotinEffect: LowMight have some moisturising properties. Is not effective when applied topically beyond some moisturizing effect~0.15–0.25%

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~0.15–0.3%

Linoleic acidUnder-dosedAn excellent emollient. Helps soften the skin, restore its barrier function, and can help to calm down inflammation. It can be helpful to prevent blemishes and clogged pores~0.3–0.55%

Acetyl glucosamineUnder-dosedAn effective moisturizing ingredient that also has been shown to be effective in evening out the skin tone and reducing hyperpigmentation. It can help somewhat reduce wrinkles in skin~0.15–0.25%

Evens skin tone

Retinol, Niacinamide + 4 more

Works well

What the product description says

“DESCRIPTION Common Labs Vitamin C Brightening Sun Serum helps to brighten the skin by supplying rich and diverse vitamin nutrition.”

Source: Lila Beauty

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

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

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: pancratium maritimum extract.

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~0.15–0.25%

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~1.9–2.3%

Pancratium maritimum extractKey activeEffect: MediumA plant extract that might help neutralize free radicals in skin. It might help reduce hyperpigmentation~0.15–0.25%

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~0.15–0.25%

Anti-oxidation

Side benefit · Retinol, Glutathione + 8 more

Works well

This product contains antioxidants (glutathione, 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).

The following ingredients - pyridoxine also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

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~0.15–0.25%

PyridoxineKey activeEffect: MediumMight help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritating~0.15–0.25%

Terminalia ferdinandiana fruit extractEffect: LowA plant extract that might have some anti-oxidant effect in skin, but evidence is lacking~0.2–0.4%

Pancratium maritimum extractEffect: LowA plant extract that might help neutralize free radicals in skin. It might help reduce hyperpigmentation~0.15–0.25%

Hippophae rhamnoides fruit extractEffect: LowA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking~0.15–0.25%

Vaccinium macrocarpon fruit extractEffect: LowA berry extract. Might have some anti-oxidant properties~0.1–0.2%

Rubus idaeus fruit extractEffect: LowA fruit extract that might have some anti-oxidant properties but evidence of effectiveness in skin is lacking~0.1–0.15%

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~0.15–0.3%

Anti-blemish

Side benefit · Niacinamide, Retinol + 2 more

Works well

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

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: pantothenic acid

Pantothenic acidKey activeEffect: MediumHelps attract water to the upper layer of the skin and may help reduce inflammation in skin~0.15–0.25%

Anti-aging

Side benefit · Retinol, Niacinamide + 5 more

Works well

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

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

Folic acidKey activeEffect: MediumCan help stimulate collagen production in skin. While available studies are promising, more research is needed to confirm the efficacy in skin~0.15–0.3%

Hyaluronic acidEffect: LowOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation~0.15–0.25%

Exfoliation

Side benefit · Retinol, Acetyl glucosamine

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.

Can it cause trouble?

Irritancy

11 strong irritants: Alcohol, Citrus aurantium bergamia fruit oil + 9 more — patch-test recommended

High risk

We flagged 40 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~2.3–2.8%est.

Citrus aurantium bergamia fruit oilA plant oil with a high content of volatile compounds that can irritate the skin and lead to allergic reactions. Can lead to photosensitivityHigh~0.5–0.75%est.

Citrus aurantifolia fruit extractUsed as a fragranceHigh~0.15–0.3%est.

Citrus unshiu peel extract—High~0.15–0.3%est.

Citrus junos peel extract—High~0.2–0.35%est.

Vaccinium macrocarpon fruit extractA berry extract. Might have some anti-oxidant propertiesHigh~0.1–0.2%est.

Citrus limon fruit extractUsed as a fragrance. Can be irritating and cause photosensitivityHigh~0.1–0.2%est.

Citrus paradisi fruit extract—High~0.1–0.2%est.

Pancratium maritimum extractA plant extract that might help neutralize free radicals in skin. It might help reduce hyperpigmentationHigh~0.15–0.25%est.

Isoamyl p-methoxycinnamateAmiloxate or Neo Heliopan E1000. A UV filter. It is effective against UVB and UVA II rays. Not available in the US. It can be irritatingHigh~0.25–0.5%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~0.15–0.25%est.

PyridoxineMight help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritatingHigh~0.15–0.25%est.

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~0.15–0.25%est.

LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.15%est.

LinaloolA fragrance. Can be irritatingHigh~0.1–0.15%est.

Diethylamino hydroxybenzoyl hexyl benzoateUvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yetMedium~4.2–5.1%est.

Bis-ethylhexyloxyphenol methoxyphenyl triazineTinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Approved by the US FDA in 2026 (listed as bemotrizinol on US labels).Medium~3.3–4%est.

Ethylhexyl triazoneUvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yetMedium~1.9–2.4%est.

Phenethyl benzoateUsed as a fragranceMedium~1.1–1.4%est.

Terminalia ferdinandiana fruit extractA plant extract that might have some anti-oxidant effect in skin, but evidence is lackingMedium~0.2–0.4%est.

Fragaria chiloensis fruit extract—Medium~0.15–0.3%est.

Hippophae rhamnoides fruit extractA plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lackingMedium~0.15–0.25%est.

Rubus idaeus fruit extractA fruit extract that might have some anti-oxidant properties but evidence of effectiveness in skin is lackingMedium~0.1–0.15%est.

MethylpropanediolHelps dissolve other ingredients in a formulationMedium~0.15–0.25%est.

Polysilicone-15A UV filter. Effective against UVB rays, but does not protect against the most aging UVA lightMedium~0.3–0.55%est.

1,2-hexanediolA preservativeMedium~0.1–0.25%est.

Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.15–0.3%est.

Dibutyl ethylhexanoyl glutamideHelps improve the product texture and soften the upper layer of the skinMedium~0.15–0.25%est.

Dibutyl lauroyl glutamideHelps improve the product texture and soften the upper layer of the skinMedium~0.15–0.25%est.

Sodium polyacryloyldimethyl taurateHelps oil and water mix togetherMedium~0.15–0.25%est.

HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.15–0.3%est.

EthylhexylglycerinA preservativeMedium~0.15–0.3%est.

Sodium hyaluronate crosspolymerAttracts water into the upper layer of the skinMedium~0.15–0.25%est.

Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.15–0.3%est.

Linolenic acidAn emollient that helps soften the skin and calm down inflammationMedium~0.2–0.4%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.25%est.

Sodium citrateHelps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve productsMedium~0.15–0.25%est.

Thiamine hclCan help attract water to the upper layer of the skin. Is studied as a mosquito repellentMedium~0.15–0.25%est.

GlutathioneA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skinMedium~0.15–0.3%est.

Disodium edtaStabilizes the product formulationMedium~0.15–0.25%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

Alternatives

Cheaper, or higher on efficacy

Medicube PDRN Pink Exosome Shot Serum 2000

Cheaper75% match

$3.38

The Purest Solutions Youth Radiant Renewal Retinol Serum

Cheaper73% match

$6.63

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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%

Formula

Irritation risk: Low

Plain old water

More about Water

Dibutyl adipate~5.4–6.6%

Formula

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin and create a nice product consistency

More about Dibutyl adipate

Diethylamino hydroxybenzoyl hexyl benzoate~4.2–5.1%

Irritant · medium

Irritation risk: Medium

Works for

Sun protection

Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet

More about Diethylamino hydroxybenzoyl hexyl benzoate

Bis-ethylhexyloxyphenol methoxyphenyl triazine~3.3–4%

Irritant · medium

Irritation risk: Medium

Works for

Sun protection

Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Approved by the US FDA in 2026 (listed as bemotrizinol on US labels).

More about Bis-ethylhexyloxyphenol methoxyphenyl triazine

Alcohol~2.3–2.8%

Irritant · high

Irritation risk: High

Works for

Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol

Niacinamide~1.9–2.3%

Hero · Moisturizing, Anti-blemish

Irritation risk: Low

Works for

Anti-agingEvens skin toneAnti-blemishMoisturizingReduces 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

C12-15 alkyl benzoate~1.6–2%

Key active

Irritation risk: Low

Works for

Moisturizing

Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth

More about C12-15 alkyl benzoate

Ethylhexyl triazone~1.9–2.4%

Irritant · medium

Irritation risk: Medium

Works for

Sun protection

Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet

More about Ethylhexyl triazone

Phenethyl benzoate~1.1–1.4%

Irritant · medium

Irritation risk: Medium

Used as a fragrance

More about Phenethyl benzoate

Silica~1.1–1.3%

Formula

Irritation risk: Low

Used to absorb oil and can temporarily mattify skin

More about Silica

Citrus aurantium bergamia fruit oil~0.5–0.75%

Irritant · high

Irritation risk: High

A plant oil with a high content of volatile compounds that can irritate the skin and lead to allergic reactions. Can lead to photosensitivity

More about Citrus aurantium bergamia fruit oil

Sodium hyaluronate~0.3–0.6%

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

Cynanchum atratum extract~0.2–0.4%

Formula

Irritation risk: Low

More about Cynanchum atratum extract

Althaea rosea flower extract~0.15–0.3%

Formula

Irritation risk: Low

More about Althaea rosea flower extract

Hydrolyzed hyaluronic acid~0.15–0.3%

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

Citrus aurantifolia fruit extract~0.15–0.3%

Irritant · high

Irritation risk: High

Used as a fragrance

More about Citrus aurantifolia fruit extract

Citrus unshiu peel extract~0.15–0.3%

Irritant · high

Irritation risk: High

More about Citrus unshiu peel extract

Citrus junos peel extract~0.2–0.35%

Irritant · high

Irritation risk: High

More about Citrus junos peel extract

Terminalia ferdinandiana fruit extract~0.2–0.4%

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

Fragaria chiloensis fruit extract~0.15–0.3%

Irritant · medium

Irritation risk: Medium

More about Fragaria chiloensis fruit extract

Hippophae rhamnoides fruit extract~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking

More about Hippophae rhamnoides fruit extract

Lactobacillus ferment lysate~0.15–0.25%

Key active

Irritation risk: Low

Works for

Moisturizing

A "broth" with parts of dead cells of lactobacteria. Might be helpful supporting diverse microbiome in skin, but evidence is lacking

More about Lactobacillus ferment lysate

Rubus idaeus fruit extract~0.1–0.15%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A fruit extract that might have some anti-oxidant properties but evidence of effectiveness in skin is lacking

More about Rubus idaeus fruit extract

Vaccinium macrocarpon fruit extract~0.1–0.2%

Irritant · high

Irritation risk: High

Works for

Anti-oxidation

A berry extract. Might have some anti-oxidant properties

More about Vaccinium macrocarpon fruit extract

Citrus limon fruit extract~0.1–0.2%

Irritant · high

Irritation risk: High

Used as a fragrance. Can be irritating and cause photosensitivity

More about Citrus limon fruit extract

Citrus paradisi fruit extract~0.1–0.2%

Irritant · high

Irritation risk: High

More about Citrus paradisi fruit extract

Pancratium maritimum extract~0.15–0.25%

Key activeIrritant · high

Irritation risk: High

Works for

Evens skin toneAnti-oxidation

A plant extract that might help neutralize free radicals in skin. It might help reduce hyperpigmentation

More about Pancratium maritimum extract

Hyaluronic acid~0.15–0.25%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-inflammatoryAnti-aging

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation

More about Hyaluronic acid

Isoamyl p-methoxycinnamate~0.25–0.5%

Irritant · high

Irritation risk: High

Works for

Sun protection

Amiloxate or Neo Heliopan E1000. A UV filter. It is effective against UVB and UVA II rays. Not available in the US. It can be irritating

More about Isoamyl p-methoxycinnamate

Methylpropanediol~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Helps dissolve other ingredients in a formulation

More about Methylpropanediol

Polysilicone-15~0.3–0.55%

Irritant · medium

Irritation risk: Medium

Works for

Sun protection

A UV filter. Effective against UVB rays, but does not protect against the most aging UVA light

More about Polysilicone-15

1,2-hexanediol~0.1–0.25%

Irritant · medium

Irritation risk: Medium

A preservative

More about 1,2-hexanediol

Pentylene glycol~0.15–0.3%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol

C30-45 alkyldimethylsilyl polypropylsilsesquioxane~0.15–0.3%

Formula

Irritation risk: Low

Used to create a nice product texture

More about C30-45 alkyldimethylsilyl polypropylsilsesquioxane

Dibutyl ethylhexanoyl glutamide~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Helps improve the product texture and soften the upper layer of the skin

More about Dibutyl ethylhexanoyl glutamide

Dibutyl lauroyl glutamide~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Helps improve the product texture and soften the upper layer of the skin

More about Dibutyl lauroyl glutamide

Sodium acrylates crosspolymer-2~0.15–0.25%

Formula

Irritation risk: Low

More about Sodium acrylates crosspolymer-2

Sodium polyacryloyldimethyl taurate~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Helps oil and water mix together

More about Sodium polyacryloyldimethyl taurate

Ammonium acryloyldimethyltaurate/vp copolymer~0.15–0.3%

Formula

Irritation risk: Low

Increases thickness of a product. Texture enhancer for oil-in-water emulsions

More about Ammonium acryloyldimethyltaurate/vp copolymer

Hydroxyacetophenone~0.15–0.3%

Irritant · medium

Irritation risk: Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone

Butylene glycol~0.15–0.25%

Formula

Irritation risk: Low

Works for

Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol

Glycerin~0.2–0.35%

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

Tocopherol~0.15–0.3%

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

Acetyl glucosamine~0.15–0.25%

Under-dosed

Irritation risk: Low

Works for

MoisturizingEvens skin toneAnti-agingExfoliation

An effective moisturizing ingredient that also has been shown to be effective in evening out the skin tone and reducing hyperpigmentation. It can help somewhat reduce wrinkles in skin

More about Acetyl glucosamine

Ethylhexylglycerin~0.15–0.3%

Irritant · medium

Irritation risk: Medium

A preservative

More about Ethylhexylglycerin

Sodium hyaluronate crosspolymer~0.15–0.25%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

Attracts water into the upper layer of the skin

More about Sodium hyaluronate crosspolymer

Caprylyl glycol~0.15–0.3%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol

Saccharide isomerate~0.15–0.25%

Key active

Irritation risk: Low

Works for

Moisturizing

Helps attract water to the upper layer of the skin

More about Saccharide isomerate

Linolenic acid~0.2–0.4%

Key activeIrritant · medium

Irritation risk: Medium

Works for

MoisturizingCleansingReduces irritationAnti-inflammatory

An emollient that helps soften the skin and calm down inflammation

More about Linolenic acid

Citric acid~0.15–0.25%

Irritant · medium

Irritation risk: Medium

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

More about Citric acid

Sodium citrate~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products

More about Sodium citrate

Ascorbic acid~0.15–0.25%

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

Biotin~0.15–0.25%

Formula

Irritation risk: Low

Works for

Moisturizing

Might have some moisturising properties. Is not effective when applied topically beyond some moisturizing effect

More about Biotin

Cyanocobalamin~0.15–0.25%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-inflammatory

Can support skin barrier function and reduce inflammation in skin

More about Cyanocobalamin

Folic acid~0.15–0.3%

Key active

Irritation risk: Low

Works for

Anti-aging

Can help stimulate collagen production in skin. While available studies are promising, more research is needed to confirm the efficacy in skin

More about Folic acid

Pantothenic acid~0.15–0.25%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-blemishReduces rednessReduces irritation

Helps attract water to the upper layer of the skin and may help reduce inflammation in skin

More about Pantothenic acid

Pyridoxine~0.15–0.25%

Key activeIrritant · high

Irritation risk: High

Works for

Anti-oxidation

Might help neutralize free radicals in skin, but evidence of effectiveness in skin is lacking. It might be irritating

More about Pyridoxine

Riboflavin~0.15–0.25%

Formula

Irritation risk: Low

More about Riboflavin

Thiamine hcl~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Can help attract water to the upper layer of the skin. Is studied as a mosquito repellent

More about Thiamine hcl

Bioflavonoids~0.15–0.25%

Formula

Irritation risk: Low

More about Bioflavonoids

Glutathione~0.15–0.3%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Anti-oxidationMoisturizingEvens skin tone

A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin

More about Glutathione

Linoleic acid~0.3–0.55%

Under-dosed

Irritation risk: Low

Works for

MoisturizingCleansingAnti-blemish

An excellent emollient. Helps soften the skin, restore its barrier function, and can help to calm down inflammation. It can be helpful to prevent blemishes and clogged pores

More about Linoleic acid

Menadione~0.15–0.3%

Formula

Irritation risk: Low

More about Menadione

Retinol~0.15–0.25%

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

Irritation risk: High

Works for

Anti-oxidationEvens skin toneAnti-blemishMattifyingExfoliationAnti-aging

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

Xanthan gum~0.15–0.3%

Formula

Irritation risk: Low

Works for

Cleansing

Used to create a thicker product consistency

More about Xanthan gum

Disodium edta~0.15–0.25%

Irritant · medium

Irritation risk: Medium

Stabilizes the product formulation

More about Disodium edta

Limonene~0.1–0.15%

Irritant · high

Irritation risk: High

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

More about Limonene

Linalool~0.1–0.15%

Irritant · high

Irritation risk: High

A fragrance. Can be irritating

More about Linalool

Ingredient list view

Water, Dibutyl adipate, Diethylamino hydroxybenzoyl hexyl benzoate, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Alcohol, Niacinamide, C12-15 alkyl benzoate, Ethylhexyl triazone, Phenethyl benzoate, Silica, Citrus aurantium bergamia fruit oil, Sodium hyaluronate, Cynanchum atratum extract, Althaea rosea flower extract, Hydrolyzed hyaluronic acid, Citrus aurantifolia fruit extract, Citrus unshiu peel extract, Citrus junos peel extract, Terminalia ferdinandiana fruit extract, Fragaria chiloensis fruit extract, Hippophae rhamnoides fruit extract, Lactobacillus ferment lysate, Rubus idaeus fruit extract, Vaccinium macrocarpon fruit extract, Citrus limon fruit extract, Citrus paradisi fruit extract, Pancratium maritimum extract, Hyaluronic acid, Isoamyl p-methoxycinnamate, Methylpropanediol, Polysilicone-15, 1,2-hexanediol, Pentylene glycol, C30-45 alkyldimethylsilyl polypropylsilsesquioxane, Dibutyl ethylhexanoyl glutamide, Dibutyl lauroyl glutamide, Sodium acrylates crosspolymer-2, Sodium polyacryloyldimethyl taurate, Ammonium acryloyldimethyltaurate/vp copolymer, Hydroxyacetophenone, Butylene glycol, Glycerin, Tocopherol, Acetyl glucosamine, Ethylhexylglycerin, Sodium hyaluronate crosspolymer, Caprylyl glycol, Saccharide isomerate, Linolenic acid, Citric acid, Sodium citrate, Ascorbic acid, Biotin, Cyanocobalamin, Folic acid, Pantothenic acid, Pyridoxine, Riboflavin, Thiamine hcl, Bioflavonoids, Glutathione, Linoleic acid, Menadione, Retinol, Xanthan gum, Disodium edta, Limonene, Linalool

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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
	Common LabsVitamin C Brightening Sun SerumYOUR PRODUCT	SKIN&LABVitamin C Brightening Serum	Dr Dennis GrossDRx BioRejuvenation Serum	MedicubePDRN Pink Exosome Shot Serum 2000
Match	—	85%	76%	75%
Price	—	$12.69	$89.00	$3.38
Shared key ingredients	—	13 of 22	9 of 22	8 of 22
Key difference	—	3-O-Ethyl Ascorbic Acid	Lactobionic Acid	Acetyl Tetrapeptide-5
Irritancy	High	Medium	High	Medium
Drying alcohol	Contains drying alcohol	—	—	Contains drying alcohol
	View product	Shop	Shop	Shop

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Product summary

"Common Labs - Buy Common Labs Vitamin C Brightening Sun Serum in Australia - Korean Skincare Online" is effective for: Moisturizing, Evens skin tone, Anti-blemish, Anti-aging and Exfoliation

Ingredient callouts

A good concentration of Niacinamide (1.90% - 2.30%). 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 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 (0.15% - 0.25%) it cannot have a noticeable benefit for the skin.
This product contains an effective form of Retinoids (vitamin A): retinol 0.15% - 0.25%. 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 (saccharide isomerate 0.15% - 0.25%, sodium hyaluronate crosspolymer 0.15% - 0.25%, glycerin 0.20% - 0.35%, hyaluronic acid 0.15% - 0.25%, hydrolyzed hyaluronic acid 0.15% - 0.30% and sodium hyaluronate 0.30% - 0.60%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails for 17.95A$ in Australia.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 34 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
Safety Assessment of Citrus-Derived Peel Oils as Used in Cosmeticscir-safety.org
4
Oxidized citrus oil (R-limonene): A frequent skin sensitizer in Europesciencedirect.com
5
Air oxidation increases skin irritation from fragrance terpenesonlinelibrary.wiley.com
6
Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
7
Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
8
Efficacy of a New Topical Nano-hyaluronic Acid in Humansncbi.nlm.nih.gov
9
Physiochemical properties and application of hyaluronic acid: a systematic reviewonlinelibrary.wiley.com
10
The chemotherapeutic potential of Terminalia ferdinandiana: Phytochemistry and bioactivityncbi.nlm.nih.gov
11
Abundance of active ingredients in sea-buckthorn oilncbi.nlm.nih.gov
12
Use of Pancratium maritimum extract as cosmetic antioxidizing agent and/or melanogenesis inhibitor in cosmetic composition e.g. to prevent/fight against the signs of skin aging, and for depigmenting of the skin, body hair and/or hairpatents.google.com
13
Photo-allergic contact dermatitis caused by isoamyl p-methoxycinnamate in an 'organic' sunscreenpubmed.ncbi.nlm.nih.gov
14
The influence of alkane chain length on the skin irritation potential of 1,2-alkanediolsncbi.nlm.nih.gov
15
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
16
Vitamin E in dermatologyncbi.nlm.nih.gov
17
Vitamin E and Skin Healthlpi.oregonstate.edu
18
The effect of N-acetyl-glucosamine on stratum corneum desquamation and water content in human skinncbi.nlm.nih.gov
19
Glucosamine: an ingredient with skin and other benefitsncbi.nlm.nih.gov
20
Genomic expression changes induced by topical N-acetyl glucosamine in skin equivalent cultures in vitroonlinelibrary.wiley.com
21
Incorporation of D-(^H)glucosamine into normal and psoriatic epidermal glycoconjugatesonlinelibrary.wiley.com
22
Reduction in the appearance of facial hyperpigmentation by topical N-acetyl glucosamineonlinelibrary.wiley.com
23
Topical vitamin B12--a new therapeutic approach in atopic dermatitis-evaluation of efficacy and tolerability in a randomized placebo-controlled multicentre clinical trialpubmed.ncbi.nlm.nih.gov
24
Superiority of a vitamin B12-containing emollient compared to a standard emollient in the maintenance treatment of mild-to-moderate plaque psoriasisncbi.nlm.nih.gov
25
Folic acid and creatine improve the firmness of human skin in vivopubmed.ncbi.nlm.nih.gov
26
Cutaneous Metabolism of Vitamin B-6sciencedirect.com
27
Glutathione as a skin whitening agent: Facts, myths, evidence and controversiesijdvl.com
28
Glutathione for skin lightening: a regnant myth or evidence-based verity?ncbi.nlm.nih.gov
29
Glutathione for skin lightening for dermatologists and cosmetologistsijord.com
30
The Permeability Barrier in Essential Fatty Acid Deficiency: Evidence for a Direct Role for Linoleic Acid in Barrier Functionsciencedirect.com
31
Digital image analysis of the effect of topically applied linoleic acid on acne microcomedones.europepmc.org
32
Retinoids in the treatment of skin aging: an overview of clinical efficacy and safetyncbi.nlm.nih.gov
33
Improvement of naturally aged skin with vitamin A (retinol)ncbi.nlm.nih.gov
34
A comparative study of the effects of retinol and retinoic acid on histological, molecular, and clinical properties of human skinonlinelibrary.wiley.com

Common LabsVitamin C Brightening Sun Serum

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As an Amazon Associate, WIMJ earns from qualifying purchases.