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INCI: CYSTEINE"
Cysteine is a sulfur-containing amino acid that is a precursor to glutathione, a powerful antioxidant. In skincare, it can help protect the skin from oxidative stress and support its natural defense mechanisms.
No specific concern data available
Safety summary
As a naturally occurring amino acid, cysteine is generally considered safe for topical application. It is not typically associated with irritation or sensitization.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.