Spring Valley Collagen Type 1 & 3 plus Vitamin C Hair/Skin/Nails Health Dietary Supplement Tablets are a dietary supplement that promotes hair, skin, and nail health.* Collagen is a major structural protein that provides the building blocks to help support healthy hair, skin, and nails.* The suggested adult dosage is three tablets, twice daily, preferably on an empty stomach. These tablets are free of gluten, yeast, wheat, milk, lactose, and soy, and contain no artificial colors, artificial flavors, or preservatives. You can rest assured that Spring Valley Collagen Type 1 & 3 plus Vitamin C Hair/Skin/Nails Health Dietary Supplement Tablets are produced with strict quality guidelines and are backed by our quality guarantee.