A good concentration of Niacinamide (1.60% - 2.50%). 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.
Peptides (palmitoyl tripeptide-8 0.20% - 0.75%, oligopeptide-68 0.40% - 0.90%, dipeptide diaminobutyroyl benzylamide diacetate 0.50% - 1.15%, copper tripeptide-1 1.20% - 1.70% and acetyl hexapeptide-8 1.40% - 2.10%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. They might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
Adenosine 0.05% - 0.30%. It is a chemical present inside our skin cells. A clinical trial confirmed that topical application of Adenosine in a low concentration can reduce dynamic wrinkles (these are the wrinkles that appear with age in a places where our mimic is the most active, for example, in the corners of the eyes or on the forehead).
Humectants (dextran 0.05% - 0.25%, glutamic acid 0.05% - 0.25%, pca 0.05% - 0.25%, arginine 0.10% - 0.35%, glycine 0.10% - 0.45%, alanine 0.10% - 0.40%, sodium hyaluronate 0.10% - 0.45%, acetyl hexapeptide-8 1.40% - 2.10% and glycerin 3.40% - 5.00%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "COSRX" is cruelty free and so is its parent company.

Price

The product retails for 39.95A$ in Australia and from 25.00$ up to 30.00$ in the United States.

For a detailed price comparison: click here.

What can the product work for?

Anti-aging

What does the product description say?

BENEFITS • Boosts overall skin condition such as pore&sebum, firmness, fine lines, skin texture, skin tone and soothing • Makes your skin soft and smooth with skin tone and texture after use • Non sticky, lightweight texture to absorb quickly TARGETS Those that • Have complex skin concerns • want to improve overall skin condition at once • want first step skin booster to pair with other products • want light and non sticky serum

Source: Cosrx

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

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: acetyl hexapeptide-8, copper tripeptide-1, dipeptide diaminobutyroyl benzylamide diacetate, oligopeptide-68, palmitoyl tripeptide-8, serine, threonine.

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.

niacinamide 1.6% - 2.5%

Irritation risk:

Concentration: Effectiveness: HIGH

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

adenosine 0.05% - 0.3%

Irritation risk:

Concentration: Effectiveness: HIGH

Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)

copper tripeptide-1 1.2% - 1.7%

Irritation risk:

Concentration: Effectiveness: MEDIUM

A naturally occurring peptide. One of the most studied peptides in dermatology. It is sometimes abbreviated GHK-Cu. Belongs to the class of carrier peptides. It stimulates both synthesis and breakdown of collagen in skin. It is released in skin wounds and inflammation to support healing. It accelerates wound-healing of the skin and can stimulate hair growth. There are preliminary studies that confirm that copper tripeptide can help support collagen production reducing fine lines and wrinkles and decrease inflammation in skin.

Evens skin tone

What does the product description say?

BENEFITS • Boosts overall skin condition such as pore&sebum, firmness, fine lines, skin texture, skin tone and soothing • Makes your skin soft and smooth with skin tone and texture after use • Non sticky, lightweight texture to absorb quickly TARGETS Those that • Have complex skin concerns • want to improve overall skin condition at once • want first step skin booster to pair with other products • want light and non sticky serum

Source: Cosrx

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

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: alanine.

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.

niacinamide 1.6% - 2.5%

Irritation risk:

Concentration: Effectiveness: HIGH

alanine 0.1% - 0.4%

Irritation risk:

Concentration: Effectiveness: LOW

An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking

acetyl glucosamine 0.1% - 0.4%

Irritation risk:

Concentration: Insufficient!

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

Anti-blemish

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

niacinamide 1.6% - 2.5%

Irritation risk:

Concentration: Effectiveness: HIGH

allantoin 0.05% - 0.25%

Irritation risk:

Concentration: Insufficient!

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

Moisturizing

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: alanine, arginine.

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: arginine, caprylyl glycol.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl hexapeptide-8, copper tripeptide-1, dipeptide diaminobutyroyl benzylamide diacetate, niacinamide, oligopeptide-68, palmitoyl tripeptide-8

serine 0.1% - 0.4%

Irritation risk:

Concentration: Effectiveness: HIGH

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

sodium hyaluronate 0.1% - 0.45%

Irritation risk:

Concentration: Effectiveness: HIGH

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

alanine 0.1% - 0.4%

Irritation risk:

Concentration: Effectiveness: HIGH

An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking

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User reviews (6)

Ingredients & concentrations

All ingredients

Key Actives

niacinamide 1.6% - 2.5%

Irritation risk:

Works for: Anti-blemish, Anti-aging, Moisturizing, Evens skin tone, Reduces irritation, Reduces redness, Antibacterial, Anti-inflammatory

acetyl glucosamine 0.1% - 0.4%

Irritation risk:

Works for: Moisturizing, Evens skin tone, Anti-aging, Exfoliation

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

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Potential irritants

pentylene glycol 2.7% - 4%

Irritation risk:

Works for: Moisturizing

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

1,2-hexanediol 1% - 1.6%

Irritation risk:

A preservative

Comodogenic ingredients

glycine soja oil 0.05% - 0.25%

Irritation risk: Comedogenicity: Medium

Works for: Moisturizing

A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.

All ingredients

water 40% - 60%

Irritation risk:

Plain old water

dipropylene glycol 5% - 7.6%

Irritation risk:

Helps to dissolve other ingredients in a formulation. Slows down the rate of product drying

glycerin 3.4% - 5%

Irritation risk:

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

Ingredient list view

Water, Dipropylene glycol, Glycerin, Pentylene glycol, 1,2-hexanediol, Niacinamide, Acetyl hexapeptide-8, Copper tripeptide-1, Sh-polypeptide-121, Dipeptide diaminobutyroyl benzylamide diacetate, Oligopeptide-68, Palmitoyl tripeptide-8, Allantoin, Sodium hyaluronate, Acetyl glucosamine, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium pca, Sodium lactate, Pca, Glutamic acid, Lysine hcl, Tocopherol, Dextran, Glycine soja oil, Hydrogenated lecithin, Ammonium acryloyldimethyltaurate/vp copolymer, Polyacrylate crosspolymer-6, Butylene glycol, Xanthan gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium edta, Citric acid, Caprylyl glycol, T-butyl alcohol, Potassium sorbate, Sodium oleate

	COSRX - The 6 Peptide Skin Booster Serum	UNPA - Atelo Firm Up Ampoule Sponsored	UNPA - Atelo Firm Up Ampoule	MEDI-PEEL - Luminous Silk Oil Serum	BANOBAGI - Milk Thistle Repair Serum	Boots - Ingredients Peptide Serum	SIDMOOL - Idebenone Elastic Ampoule	AHC - Hydrating Korean Skincare Aqualuronic Face Serum	Farm Stay - Black Snail & Peptide9 Perfect Serum	Hanskin - Collagen Peptide Hydra Ampoule	NATUREKIND - Daily Repair EGF Ampoule	NatureONE - Volufiline Peptide Ampoule
Price
WIMJ similarity score		80%	80%	79%	78%	77%	76%	76%	75%	74%	74%	74%
Key ingredients	niacinamide copper tripeptide-1 +21 more	Common: copper tripeptide-1 niacinamide +10 more Other: palmitoyl pentapeptide-4 ceramide np +10 more	Common: copper tripeptide-1 niacinamide +10 more Other: palmitoyl pentapeptide-4 ceramide np +10 more	Common: niacinamide copper tripeptide-1 +11 more Other: acetyl octapeptide-3 madecassoside +27 more	Common: copper tripeptide-1 niacinamide +4 more Other: madecassoside panthenol +3 more	Common: niacinamide betaine +12 more Other: palmitoyl tripeptide-1 palmitoyl tetrapeptide-7 +4 more	Common: copper tripeptide-1 niacinamide +4 more Other: hydroxydecyl ubiquinone allantoin +1 more	Common: copper tripeptide-1 niacinamide +10 more Other: madecassic acid ceramide np +26 more	Common: niacinamide copper tripeptide-1 +6 more Other: oligopeptide-32 madecassoside +17 more	Common: niacinamide copper tripeptide-1 +7 more Other: pentapeptide-18 octapeptide-7 +27 more	Common: niacinamide copper tripeptide-1 +5 more Other: panthenol sh-oligopeptide-1 +9 more	Common: copper tripeptide-1 niacinamide +5 more Other: palmitoyl pentapeptide-4 sh-oligopeptide-1 +5 more
Irritancy	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY LOW	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM	IRRITANCY MEDIUM
Potential Irritants	sodium oleate Has skin benefit? potassium sorbate Has skin benefit? +9 more	eclipta prostrata extract Has skin benefit? sodium ascorbyl phosphate Has skin benefit? +8 more	eclipta prostrata extract Has skin benefit? sodium ascorbyl phosphate Has skin benefit? +8 more	rosa damascena flower water Has skin benefit? caprylyl glycol Has skin benefit? +13 more	cardiospermum halicacabum flower/leaf/vine extract Has skin benefit? arctium lappa root extract Has skin benefit? +7 more	sodium hyaluronate crosspolymer Has skin benefit? disodium edta Has skin benefit? +4 more	ethylhexylglycerin Has skin benefit? hydroxydecyl ubiquinone Has skin benefit? +2 more	eucalyptus globulus leaf extract Has skin benefit? ascorbic acid Has skin benefit? +15 more	parfum Has skin benefit? sorbitan sesquioleate Has skin benefit? +16 more	ethylhexylglycerin Has skin benefit? disodium edta Has skin benefit? +9 more	rosmarinus officinalis leaf oil Has skin benefit? hibiscus esculentus fruit extract Has skin benefit? +12 more	aniba rosodora wood oil Has skin benefit? disodium edta Has skin benefit? +5 more
All ingredients	water Has skin benefit? dipropylene glycol Has skin benefit? +42 more	water Has skin benefit? propanediol Has skin benefit? +53 more	water Has skin benefit? propanediol Has skin benefit? +53 more	pearl extract Has skin benefit? propanediol Has skin benefit? +83 more	arctium lappa root extract Has skin benefit? glycerin Has skin benefit? +27 more	water Has skin benefit? glycerin Has skin benefit? +30 more	rosa canina fruit extract Has skin benefit? glycerin Has skin benefit? +19 more	water Has skin benefit? methyl gluceth-20 Has skin benefit? +83 more	water Has skin benefit? glycerin Has skin benefit? +57 more	collagen extract Has skin benefit? glycerin Has skin benefit? +64 more	centella asiatica extract Has skin benefit? water Has skin benefit? +37 more	water Has skin benefit? butylene glycol Has skin benefit? +32 more

PRODUCT REVIEW

COSRX The 6 Peptide Skin Booster Serum

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Product summary

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About the brand

Price

What can the product work for?

Works for

Anti-aging

What does the product description say?

Evens skin tone

What does the product description say?

Anti-blemish

Moisturizing

Honesty check

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Can it cause trouble?

Potential irritants

Comodogenic ingredients

User reviews (6)

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Key Actives

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All ingredients

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