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L-Theanine is an amino acid that can help support the skin's natural moisturizing factors, contributing to better hydration and a healthy skin barrier. While more commonly known as a dietary supplement, its topical application can aid in maintaining skin moisture.
No specific concern data available
Safety summary
L-Theanine is generally considered safe for topical use in skincare products. There are no widespread reports of irritation or sensitization.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.