PRODUCT REVIEW
COSRX The Niacinamide 15 Serum
Works for:
based on ingredients and %- Anti-aging
- Evens skin tone
- Anti-blemish
- Moisturizing
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Can it cause trouble?
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Product summary
What can the product work for?
Anti-blemish
What does the product description say?
, 45.27% improvement of activated sebaceous glands , 48.07% improvement of oil synthesis amount , 42.72% improvement of number of blackheads , 50% improvement of number of whiteheads , 15.50% improvement of (hidden melasma and blemishes) , 19.47% improvement of pigmentation (visible melasma and blemishes) , 2.59% improvement of triple-complexion skin tone (brightness) , 24.89% improvement of triple-complexion skin tone (redness) , 11.73% improvement of triple-complexion skin tone (yellowness)
niacinamide
15%
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
zinc pca
1.7% -
2.5%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing
allantoin
0.2% -
0.75%
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
Anti-aging
What does the product description say?
, 45.27% improvement of activated sebaceous glands , 48.07% improvement of oil synthesis amount , 42.72% improvement of number of blackheads , 50% improvement of number of whiteheads , 15.50% improvement of (hidden melasma and blemishes) , 19.47% improvement of pigmentation (visible melasma and blemishes) , 2.59% improvement of triple-complexion skin tone (brightness) , 24.89% improvement of triple-complexion skin tone (redness) , 11.73% improvement of triple-complexion skin tone (yellowness)
acetyl glucosamine
2.6% -
3.8%
Irritation risk:
Concentration: Effectiveness: HIGH
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
niacinamide
15%
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
zinc pca
1.7% -
2.5%
Irritation risk:
Concentration: Effectiveness:
LOW
A compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing
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Evens skin tone
What does the product description say?
, 45.27% improvement of activated sebaceous glands , 48.07% improvement of oil synthesis amount , 42.72% improvement of number of blackheads , 50% improvement of number of whiteheads , 15.50% improvement of (hidden melasma and blemishes) , 19.47% improvement of pigmentation (visible melasma and blemishes) , 2.59% improvement of triple-complexion skin tone (brightness) , 24.89% improvement of triple-complexion skin tone (redness) , 11.73% improvement of triple-complexion skin tone (yellowness)
acetyl glucosamine
2.6% -
3.8%
Irritation risk:
Concentration: Effectiveness: HIGH
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
niacinamide
15%
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
Moisturizing
trehalose
1% -
1.5%
Irritation risk:
Concentration: Effectiveness: HIGH
A sugar that attracts water to the upper layer of the skin
zinc pca
1.7% -
2.5%
Irritation risk:
Concentration: Effectiveness: HIGH
A compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing
acetyl glucosamine
2.6% -
3.8%
Irritation risk:
Concentration: Effectiveness: HIGH
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
Show more
Exfoliation
What does the product description say?
Exfoliates and smoothens rough skin for a soft touch.
acetyl glucosamine
2.6% -
3.8%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
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
allantoin
0.2% -
0.75%
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
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Evens skin tone | |
| Anti-blemish | |
| Exfoliation |
Total Promises Fulfilled score:
87/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
pullulan
0.45% -
1.1%
Irritation risk:
Works for:
Mattifying
Creates a thin drying film on the skin resulting in a short-term tightening effect
pentylene glycol
5.9% -
8.8%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
Show more
Comodogenic ingredients
No comodogenic ingredients detected
User reviews (1)
Recommend
1 review
0%
|
100%
How would you describe the texture?
1 review
heavy
Light
How much does this product clog
pores?
1 review
Definitely clogs pores
Doesn't clog pores
How would you describe the smell?
1 review
No smell
Light fragrance
Strong fragrance
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| WIMJ similarity score |
77%
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88%
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87%
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| Irritancy | IRRITANCY
LOW
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LOW
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MEDIUM
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
15%
Irritation risk:
Works for:
Anti-aging,
Anti-blemish,
Evens skin tone,
Moisturizing,
Reduces irritation,
Antibacterial,
Reduces redness,
Anti-inflammatory
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
allantoin
0.2% -
0.75%
Irritation risk:
Works for:
Moisturizing,
Anti-inflammatory,
Reduces irritation,
Reduces redness,
Anti-blemish,
Exfoliation
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Show more
Potential irritants
pullulan
0.45% -
1.1%
Irritation risk:
Works for:
Mattifying
Creates a thin drying film on the skin resulting in a short-term tightening effect
pentylene glycol
5.9% -
8.8%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
pentylene glycol
5.9% -
8.8%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
niacinamide
15%
Irritation risk:
Works for:
Anti-aging,
Anti-blemish,
Evens skin tone,
Moisturizing,
Reduces irritation,
Antibacterial,
Reduces redness,
Anti-inflammatory
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
Show more
Ingredient list view
Water, Pentylene glycol, Niacinamide, Butylene glycol, Acetyl glucosamine, 1,2-hexanediol, Zinc pca, Trehalose, Xanthan gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium phytate, Citric acid, Tocopherol
Sources
- Niacinamide - mechanisms of action and its topical use in dermatology
- 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
- The effect of N-acetyl-glucosamine on stratum corneum desquamation and water content in human skin
- Glucosamine: an ingredient with skin and other benefits
- Genomic expression changes induced by topical N-acetyl glucosamine in skin equivalent cultures in vitro
- Incorporation of D-(^H)glucosamine into normal and psoriatic epidermal glycoconjugates
- Reduction in the appearance of facial hyperpigmentation by topical N-acetyl glucosamine
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Zinc L-pyrrolidone carboxylate inhibits the UVA-induced production of matrix metalloproteinase-1 by in vitro cultured skin fibroblasts, whereas it enhances their collagen synthesis
- Zinc Therapy in Dermatology: A Review
- Profile of wound healing process induced by allantoin
- Vitamin E in dermatology