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This refers to keratin, a structural protein found in hair, skin, and nails, produced synthetically in fiber form. In cosmetics, synthetic keratin can be used to strengthen and condition hair or enhance the appearance of lashes and brows.
No specific concern data available
Safety summary
Generally considered safe for topical use. Allergic reactions to synthetic keratin are rare, but individuals with known protein sensitivities should exercise caution.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.