PRODUCT REVIEW
Cos De BAHA S2 Salicylic Acid BHA 2% Liquid
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Product summary
What can the product work for?
Anti-blemish
What does the product description say?
This exfoliating liquid is formulated with salicylic acid and niacinamide to unclog pores and fade hyperpigmentation.
betaine salicylate
3.6% -
5.5%
Irritation risk:
Concentration: Effectiveness: HIGH
Exfoliating acid, a "relative" of salicylic acid
niacinamide
2.6% -
3.9%
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
salicylic acid
1.4% -
2.1%
Irritation risk:
Concentration: Effectiveness: HIGH
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
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Evens skin tone
What does the product description say?
This exfoliating liquid is formulated with salicylic acid and niacinamide to unclog pores and fade hyperpigmentation.
niacinamide
2.6% -
3.9%
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
salicylic acid
1.4% -
2.1%
Irritation risk:
Concentration: Effectiveness:
LOW
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
camellia sinensis leaf extract
0.55% -
1.25%
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
Exfoliation
What does the product description say?
This exfoliating liquid is formulated with salicylic acid and niacinamide to unclog pores and fade hyperpigmentation.
betaine salicylate
3.6% -
5.5%
Irritation risk:
Concentration: Effectiveness: HIGH
Exfoliating acid, a "relative" of salicylic acid
salicylic acid
1.4% -
2.1%
Irritation risk:
Concentration: Effectiveness: HIGH
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
Anti-aging
niacinamide
2.6% -
3.9%
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
0.55% -
1.25%
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-oxidation
camellia sinensis leaf extract
0.55% -
1.25%
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
artemisia vulgaris extract
0.15% -
0.6%
Irritation risk:
Concentration: Effectiveness:
LOW
A plant extract that might have some anti-inflammatory and anti-oxidant properties. It can be irritating
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Exfoliation | |
| Evens skin tone | |
| Anti-blemish |
Total Promises Fulfilled score:
100/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
salicylic acid
1.4% -
2.1%
Irritation risk:
Works for:
Exfoliation,
Anti-inflammatory,
Anti-blemish,
Antibacterial,
Evens skin tone
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
rosa damascena extract
1.2% -
1.8%
Irritation risk:
Oil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.
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Comodogenic ingredients
No comodogenic ingredients detected
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| Key ingredients |
| Common:
Other: | Common:
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Other:
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| Irritancy | IRRITANCY
HIGH
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
LOW
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
| IRRITANCY
MEDIUM
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
2.6% -
3.9%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Moisturizing,
Anti-aging,
Reduces irritation,
Anti-inflammatory,
Antibacterial,
Reduces 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
camellia sinensis leaf extract
0.55% -
1.25%
Irritation risk:
Works for:
Antibacterial,
Anti-oxidation,
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
salicylic acid
1.4% -
2.1%
Irritation risk:
Works for:
Exfoliation,
Anti-inflammatory,
Anti-blemish,
Antibacterial,
Evens skin tone
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
rosa damascena extract
1.2% -
1.8%
Irritation risk:
Oil of a very fragrant pink rose used as fragrance in cosmetics. Extensive research has shown it has mixed benefits. In the pro column, inhaling this flower’s scent seems to have relaxing properties and the plant’s petals contain skin-soothing and antioxidant compounds that can benefit skin. On the flipside, the numerous chemicals that create this rose’s distinctive fragrance pose a risk of causing skin aggravation.
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
aloe barbadensis leaf extract
23% -
35%
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
propanediol
6.9% -
10.3%
Irritation risk:
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
salicylic acid
1.4% -
2.1%
Irritation risk:
Works for:
Exfoliation,
Anti-inflammatory,
Anti-blemish,
Antibacterial,
Evens skin tone
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
Show more
Ingredient list view
Aloe barbadensis leaf extract, Propanediol, Salicylic acid, Betaine salicylate, Niacinamide, 1,2-hexanediol, Rosa damascena extract, Lavandula angustifolia flower extract, Camellia sinensis leaf extract, Melissa officinalis leaf extract, Artemisia vulgaris extract, Hydroxyethylcellulose
Sources
- Salicylic acid as a peeling agent: a comprehensive review
- Beta Hydroxy Acids
- A review of toxicity from topical salicylic acid preparations
- Glycolic Acid Peels Versus Salicylic–Mandelic Acid Peels in Active Acne Vulgaris and Post‐Acne Scarring and Hyperpigmentation: A Comparative Study
- 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 influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Evaluation of Skin Irritation and Acute and Subacute Oral Toxicity of Lavandula angustifolia Essential Oils in Rabbit and Mice