GUMMIE UNDENIABLE BEAUTY. Benefits: Delicious OLLY beauty gummies come with a blend of ingredients to help keep your hair and nails healthy and your skin smooth and firm*. Key Ingredients: Biotin is an essential nutrient to help your body metabolize fats and protein, which support healthy hair and nails* with Keratin, a key structural protein in healthy hair.. Vitamin C is a key nutrient in the production of collagen, the protein which supports healthy skin*. :