GNC Women's Advanced Hair, Skin & Nails Formula: Supports Your Skin & Hair While Helping You Look Younger GNC Women's Advanced Hair, Skin & Nails formula contains 2000% of the required daily value of biotin. Biotin helps keep your hair and nails strong and healthy. Low levels of biotin can lead to hair thinning and rashes around the eyes, nose and mouth. GNC Women's Advanced Hair, Skin & Nails formula also contains collagen and lutein to support healthy skin structure, and hyaluronic acid to
Antioxidants to help protect cells from harmful free radicals
Biotin plays a crucial role in energy metabolism
Beauty support with clinically studied ingredients
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