Lactic Acid
Low RiskEndogenous alpha-hydroxy acid and humectant; at modest cosmetic concentrations (≈5% and below, and generally <10%) topical lactic acid is considered compatible with pregnancy. Main risks are local irritation and increased photosensitivity rather than systemic toxicity or fetal effects.
Sources: PubMed, U.S. National Library of Medicine (NLM); dermatology pregnancy skincare reviews





