Beauty ingredient · Exfoliant / preservative

Salicylic acid

CAS
69-72-7

A beta hydroxy acid used to exfoliate and treat acne, and as a preservative.

  • Preservative
  • Expert review pending

Concern level

Moderate concern Level 2 of 4 How concern levels work

Strong evidence of harm at high intake, emerging evidence of harm, or a common allergen or irritant. The concern level sets how many points salicylic acid costs on a product’s receipt.

What the evidence says

  • Reproductive or developmental toxicantRegulatory

    Classified in the EU as a CMR substance of category 2; allowed up to 0.5% as a preservative and 2–3% for other uses, and not for children under 3 (except shampoos). [1]

  • Caution in pregnancyInfo

    Pregnant people are often advised to avoid high-strength salicylic acid peels; low-strength washes are a different exposure. [1]

Evidence tiers say how sure the evidence is, separately from how much it matters. About evidence tiers.

Rules around the world

How regulators treat Salicylic acid
WhereStatusDetailsDateSource
European Union Restricted 0.5% as a preservative; up to 3.0% (rinse-off hair) or 2.0% (other) for other uses; not for children under 3 except shampoos. — [1]
Canada Restricted Up to 2% in cosmetics. — [2]

“Banned” means explicitly prohibited or withdrawn after review; “not permitted” means never authorized there. We use each regulator’s own words.

Popular products that list salicylic acid

1 of the 17,000 most-scanned products in the US with a GoodSwap page list salicylic acid.

Names GoodSwap recognizes on labels (8)
  • salicylic acid
  • salicylic acid 1
  • salicylic acid 2
  • beta hydroxy acid
  • sodium salicylate
  • salicylic acid 0 5
  • 2 hydroxybenzoic acid
  • willow bark extract salicylic

Sources

  1. Commission Regulation (EU) 2019/1966 of 27 November 2019 amending and correcting Annexes II, III and V to Regulation (EC) No 1223/2009

    European Union (Official Journal) · Nov 27, 2019 · Law

    “the substance is safe for consumers when used as a preservative in cosmetic products in a concentration of up to 0,5 % (acid)”

    eur-lex.europa.eu

  2. Cosmetic Ingredient Hotlist: prohibited and restricted ingredients

    Health Canada · Aug 13, 2025 · Regulator

    “The following ingredients are only permitted in cosmetic products under the conditions of use specified below:”

    canada.ca