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Leucine is an amino acid, a fundamental building block of proteins, that helps to condition the skin. In skincare, it supports the skin's natural moisturizing factor and can contribute to a healthier-looking complexion.
No specific concern data available
Safety summary
Leucine is generally considered safe for use in cosmetic products. It is well-tolerated by most skin types and is not known to cause irritation or sensitization.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.