humectant · active
Ectoin
Generally safe·Moderate evidence
A natural osmolyte produced by halophilic bacteria. Used for hydration and protective stress response, ectoin is well tolerated with emerging evidence for skin barrier support and soothing. No safety concerns flagged in cosmetic applications.
Products with Ectoin
References
Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.