PRODUCT REVIEW
Cos De BAHA Azelaic Acid 10% Serum
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Appears in
47 routines
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Product summary
What can the product work for?
Anti-blemish
What does the product description say?
azelaic acid
10%
Irritation risk:
Concentration: Effectiveness: HIGH
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
niacinamide
1.1% -
1.7%
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
camellia sinensis leaf extract
0.6% -
1.4%
Irritation risk:
Concentration: Effectiveness:
LOW
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Evens skin tone
What does the product description say?
azelaic acid
10%
Irritation risk:
Concentration: Effectiveness: HIGH
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
niacinamide
1.1% -
1.7%
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
camellia sinensis leaf extract
0.6% -
1.4%
Irritation risk:
Concentration: Effectiveness:
LOW
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Anti-aging
What does the product description say?
niacinamide
1.1% -
1.7%
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
camellia sinensis leaf extract
0.6% -
1.4%
Irritation risk:
Concentration: Effectiveness:
LOW
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Moisturizing
sodium hyaluronate
0.2%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
niacinamide
1.1% -
1.7%
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
panthenol
1.8% -
2.6%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps attract water to the upper layer of the skin and can help improve skin barrier function
Show more
Anti-oxidation
azelaic acid
10%
Irritation risk:
Concentration: Effectiveness: HIGH
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
camellia sinensis leaf extract
0.6% -
1.4%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
sambucus nigra flower extract
0.15% -
0.65%
Irritation risk:
Concentration: Effectiveness:
LOW
A plant extract that might help neutralize free radicals in skin
Honesty check
How honest is this product?
Promise | Can it deliver? |
---|---|
Evens skin tone | |
Anti-blemish |
Total Promises Fulfilled score:
100/100.
Buy now
Buy from Yesstyle $11.25 10% off for new customers!
Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
propylene glycol
5% -
7.5%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
sambucus nigra flower extract
0.15% -
0.65%
Irritation risk:
Works for:
Anti-inflammatory,
Anti-oxidation
A plant extract that might help neutralize free radicals in skin
Show more
Comodogenic ingredients
No comodogenic ingredients detected
User reviews (2)
Recommend
2 reviews
0%
|
100%
How well does it work against blemishes?
1 review
Poor
Excellent
How well does it work for evening out skin tone?
1 review
Poor
Excellent
How would you describe the texture?
2 reviews
heavy
Light
How much does it pill under makeup?
1 review
A lot
Not at all
How much does this product clog
pores?
2 reviews
Definitely clogs pores
Doesn't clog pores
How would you describe the smell?
2 reviews
No smell
Light fragrance
Strong fragrance
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WIMJ similarity score |
63%
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77%
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Key ingredients |
| Common:
Other:
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Other:
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Irritancy | IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
HIGH
| IRRITANCY
HIGH
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
HIGH
| IRRITANCY
MEDIUM
|
Potential Irritants |
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All ingredients |
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
1.1% -
1.7%
Irritation risk:
Works for:
Anti-blemish,
Moisturizing,
Evens skin tone,
Anti-aging,
Reduces irritation,
Anti-inflammatory,
Reduces redness,
Antibacterial
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
camellia sinensis leaf extract
0.6% -
1.4%
Irritation risk:
Works for:
Anti-oxidation,
Antibacterial,
Anti-aging,
Moisturizing,
Evens skin tone,
Anti-blemish
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Show more
Potential irritants
propylene glycol
5% -
7.5%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
sambucus nigra flower extract
0.15% -
0.65%
Irritation risk:
Works for:
Anti-inflammatory,
Anti-oxidation
A plant extract that might help neutralize free radicals in skin
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
aloe barbadensis leaf extract
23% -
34%
Irritation risk:
Works for:
Moisturizing
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
propylene glycol
5% -
7.5%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
azelaic acid
10%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-oxidation,
Exfoliation
Is produced by a yeast that lives on normal human skin. It is used in medicine as a topical treatment for mild to moderate acne. It has a mild exfoliating effect. It can also help reduce hyperpigmentation, helps calm down inflammation and can help neutralize free radicals
Show more
Ingredient list view
Aloe barbadensis leaf extract, Propylene glycol, Azelaic acid, Polysorbate 20, 1,2-hexanediol, Propanediol, Panthenol, Niacinamide, Sodium hyaluronate, Camellia sinensis leaf extract, Momordica charantia fruit extract, Sambucus nigra flower extract, Leontopodium alpinum extract
Sources
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Skin moisturizing effects of panthenol-based formulations
- Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics
- 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
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- The antioxidant properties of alcoholic extracts from Sambucus nigra L. (antioxidant properties of extracts)