Hair Skin and Nails is gluten free, wheat free, yeast free and dairy free. 16 oz certified BPA free bottle. Ingredients globally sourced. Manufactured in a FDA, USDA and cGMP compliant facility in Pikeville, TN USA. Aloe Vera - concentrated 200:1 - with glycoproteins and polysaccaride helps speed healing process and stimulate skin growth and repair. Biotin - also known as Vitamin H helps the body to metabolize proteins and amino acids. Biotin is a water soluble coenxyme to also referred to as Vitamin B-7. MSM - methylsulfonylmethane - helps to enhance blood circulation and improves the permeability of cell membranes which helps to increase the intake of nutrients and release toxins and waste. Thicker, stronger, fuller hair, clear, glowing, beautiful skin with Buried Treasure Hair Skin and Nails high potency liquid formula.