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Phenylalanine is an amino acid that helps support the skin's Natural Moisturizing Factor (NMF). It contributes to skin hydration by attracting and retaining water, which can improve the skin's barrier function.
No specific concern data available
Safety summary
This ingredient is generally considered safe for topical use. As a naturally occurring amino acid, it is well-tolerated by most skin types and 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.