Advanced Keratin for Hair, Skin, and Nails delivers the nutrition you need to put your best-self forward. This comprehensive formula supports glossy hair, strong nails, and healthy skin with 5,000mcg of biotin, 500mg of Cynatine®, and types 1 and 3 collagen. You need the best to achieve your best. That’s why these clean Vthrive® The Vitamin Shoppe supplements are non-GMO and free of artificial additives, magnesium stearate, stearic acid, and titanium dioxide.