COSRX
COSRX Advanced Snail 96 Mucin Power Essence
Low risk75/100
COSRX
BHA Blackhead Power Liquid
Exfoliators
Some ingredients carry a low-risk flag. Read the formulation context before deciding.
10 of 10 ingredients rated
Is it suitable during pregnancy?
MamaSkin rates the recorded formula for COSRX BHA Blackhead Power Liquid as Low risk (79/100). Review the ingredient context and any manual-review explanation before deciding.
Why this rating?
The recorded formula includes 2 ingredient entries with risk flags: Betaine Salicylate (Low risk), Ethyl Hexanediol (Low risk). These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail.
10 of 10 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
How we assess productsIngredient breakdown
The recorded formula, with evidence behind each rating. Unmatched ingredients are marked Not assessed in grey.
Ingredient ratings and evidence
Higher-risk flags first. Open an ingredient for evidence.
Betaine Salicylate
Low risk
Ester form of salicylic acid; hydrolyses to SA, low-strength topical use shows negligible systemic absorption - chemical peels ≥30 % should be avoided.
Sources: MotherToBaby: Topical acne treatments including salicylic acid https://www.ncbi.nlm.nih.gov/books/NBK582985/
Ethyl Hexanediol
Low risk
Ethyl Hexanediol is an aliphatic alcohol used mainly as a cosmetic solvent. It can be absorbed through skin. Animal studies reported developmental effects after high oral and dermal doses, but those effects occurred at doses that also caused substantial maternal toxicity. CIR concluded that the ingredient is safe as cosmetically used and later reaffirmed that conclusion. MamaSkin nevertheless classifies it as low risk under its precautionary pregnancy-screening policy; this is not a known human pregnancy contraindication at normal cosmetic exposure.
Sources: CIR: Final Report on the Safety Assessment of Ethyl Hexanediol https://cir-reports.cir-safety.org/view-attachment/?id=acd818db-8d74-ec11-8943-0022482f06a6; CIR: Annual Review of Cosmetic Ingredient Safety Assessments 2007-2010 https://journals.sagepub.com/doi/10.1177/1091581811412618; Australian TGA: Final decisions on Ethyl Hexanediol, June 2017 https://www.tga.gov.au/sites/default/files/scheduling-delegates-final-decisions-june-2017.pdf
Salix Alba Bark Water
No known risks
White willow bark water is the aqueous portion of a steam distillate, rather than a concentrated bark extract. Distillation separates it from the nonvolatile salicin-rich fraction used in willow medicines, although trace aromatic constituents may remain. No pregnancy-specific concern is identified for ordinary unfortified cosmetic use on intact skin, where systemic exposure is expected to be limited. This conclusion does not apply to oral willow medicines or added salicylates.
Butylene Glycol
No known risks
Solvent and humectant commonly used in leave-on products. Not associated with pregnancy-specific concerns at cosmetic exposure levels.
Sources: Cosmetic Ingredient Review (US); Scientific Committee on Consumer Safety (EU)
Niacinamide
No known risks
Niacinamide (vitamin B3) is widely used for barrier support and tone/texture benefits, and is generally considered safe in pregnancy and breastfeeding when used topically at cosmetic concentrations.
Sources: CIR; EU/UK Cosmetics Regulation
Show all 10 ingredients
1,2-Hexanediol
No known risks
1,2-Hexanediol is commonly used as a solvent and preservative booster; topical exposure is low and it has no known pregnancy or breastfeeding concerns at cosmetic concentrations, though very sensitive skin may occasionally react.
Sources: CIR; EU/UK Cosmetics Regulation
Arginine
No known risks
Amino acid used as a humectant, skin-conditioning agent, and pH-adjusting support ingredient. Reviewed cosmetic safety sources support normal topical use, with no pregnancy- or breastfeeding-specific topical signal identified in the material reviewed.
Sources: CIR: Safety Assessment of α-Amino Acids as Used in Cosmetics; EU CosIng / cosmetics regulatory inventory
Panthenol
No known risks
Panthenol (pro-vitamin B5) is used for soothing and barrier support and is generally well tolerated, with no known pregnancy or breastfeeding concerns in topical cosmetic use.
Sources: CIR; EU/UK Cosmetics Regulation
Sodium Hyaluronate
No known risks
Sodium hyaluronate (hyaluronic acid salt) is used for hydration and cushioning, with very low systemic absorption from topical use and no known pregnancy or breastfeeding concerns at cosmetic concentrations.
Sources: CIR; EU/UK Cosmetics Regulation
Xanthan Gum
No known risks
Natural polysaccharide thickener used for stability and texture. Not associated with pregnancy-specific concerns.
Sources: European cosmetics regulatory framework
Full recorded ingredient list
Salix Alba Bark Water, Butylene Glycol, Betaine Salicylate, Niacinamide, 1,2-Hexanediol, Arginine, Panthenol, Sodium Hyaluronate, Xanthan Gum, Ethyl Hexanediol
Ingredient ratings refreshed 15 October 2026. Formulas vary by market and can change. Always compare with your packaging.
Questions about this assessment
Why does COSRX BHA Blackhead Power Liquid have a Low risk rating?
The recorded formula includes 2 ingredient entries with risk flags: Betaine Salicylate (Low risk), Ethyl Hexanediol (Low risk). These are ingredient-level flags; they do not replace the stored product assessment or account for every formulation detail. The product score is a stored assessment, not a clinical safety guarantee.
Does the niacinamide rating cover every ingredient in this product?
No. Niacinamide appears in the recorded formula, but its individual rating applies to that ingredient, not automatically to the whole product. Check the other ingredient ratings, any grey Not assessed entries and the stored product assessment. A niacinamide percentage or a product name is not a substitute for checking the full list.
Has every ingredient in COSRX BHA Blackhead Power Liquid been assessed?
10 of 10 ingredient entries on this page have a recorded score, evidence summary and source text. That describes documentation coverage, not proof that the finished formula has been clinically tested during pregnancy.
Does this assessment apply to my COSRX BHA Blackhead Power Liquid?
Only if the ingredient list on your packaging matches the recorded formula shown here. Formulas can differ by market and change over time. Compare the full list, not just the product name; report a mismatch if it differs.
Does this pregnancy assessment also establish breastfeeding suitability?
No. This page presents a pregnancy-focused product assessment. Do not infer a breastfeeding conclusion from its score or label; breastfeeding requires a separate assessment of the formula and how it is used.
