Gluten Free Non-gmo Le Certified Essential Nutrient for Healthy Hair and Nails Dietary Supplement What Is Biotin? As we get older, our bodies produce less of the structural proteins that we need to maintain healthy hair, skin and nails. Biotin helps produce keratin, one of those important proteins. Biotin is essential for healthy skin, hair and nails, supporting healthy hair and nails in people who are deficient. Biotin Benefits Supports healthy hair, skin and nails Necessary for cellular energy production Promotes healthy gene expression