Glycine is a skin-identical amino acid found naturally in skin and in structural proteins such as collagen.
In skincare it mainly supports hydration and conditioning as part of the skin’s amino-acid/NMF system, helping maintain water balance, flexibility and a smoother surface.
Information approach
Consumer-friendly summaries are informed by established cosmetic ingredient references such as INCIDecoder and Paula’s Choice Ingredient Dictionary, while avoiding turning ingredient-level evidence into medical claims about the finished product.
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