Undeniable Beauty-Bottle Say hello to OLLY Undeniable Beauty Gummy Supplements, an expert blend of biotin, keratin and powerful antioxidants that help you look your best, 24-7. Hello Gorgeous! Bright eyes, dewy skin, healthy hair - it all starts at the cellular level. OLLY Undeniable Beauty gummies are naturally delicious, scientifically formulated, gluten free gummy vitamins. This delicious grapefruit-flavored gummy supplement supports your naturally gorgeous hair, skin and nails. Biotin, vitamin C, and keratin pair up to support healthy looking hair, and nourished looking nails and skin.