5000 mcg of Biotin per serving. Antioxidants A, C & E Plus Hyaluronic Acid. Rapid Release Liquid Softgels. Lustrous Hair. Healthy Nails. Vibrant Skin. Being healthy is always beautiful. With Nature's Bounty Optimal Solutions Extra Strength Hair, Skin & Nails formula with Argan Oil you'll look good and feel great. It contains just the right balance of nutrients to support lustrous hair, healthy nails and vibrant skin. This innovative formula provides you with the vital nutrients and latest ingredients in beauty care to support your natural beauty from within. High potency B Vitamins help with energy metabolism and Biotin helps to maintain healthy hair and nails. Vitamin E is an antioxidant and it can contribute to skin health. Vitamin C is involved in collagen production and formation, which forms the basis for vibrant skin. Vitamin A assists with skin maintenance and overall health.