Saphira. Saphira Professional Hair Care Supplement Volume Boost for Thin and Delicate Hair: Contains Biotin for thinning and fragile hair Stimulates Keratin Production: Contains Biotin, when used in hair supplements can increase the rate of follicle growth and giving hair more volume; Zinc prevents hair loss and keeps hair strong; Vitamin D stimulates new hair follicles; Vitamin E releases anti-oxidants which heals the scalp and increases stronger hair strands Contains Vitamins Which Prevents Hair Loss: Volume Boost supplement keeps hair strong with Vitamin D that stimulates new hair follicles and Vitamin E that releases anti-oxidants which heals the scalp and increases stronger hair strands Thinning and Fragile Hair: Take Saphira's Professional Hair Supplement Volume Boost twice daily for the best results (23 day supply) Made in the USA with Clean Ingredients: Try Saphira Professional Hair Care's full line of hair products that are sulfate-free, paraben-free, gluten-free, vegan, and cruelty-free