Dietary Supplement. List No. 2546Z. L600. USP verified dietary supplement. USP has tested and verified ingredients, potency and manufacturing process. USP sets official standards for dietary supplements. www.uspverified.org. No artificial flavors. Gluten free. May help support healthy hair, skin and nails (For those low in biotin). No. 1 pharmacist recommended (Based on Pharmacy Times Survey of pharmacists recommending Letter Vitamin Supplements) vitamin & supplement brand. No synthetic dyes - colors derived from natural sources. www.naturemade.com. www.uspverified.org. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)