Dietary Supplement. Economy Size. Non GMO*. Supports healthy hair, skin and nails*. Supports energy production*. Suitable for vegetarians and vegan. High Potency Biotin is a soluble, essential B vitamin which is naturally found in bread, liver, salmon, avocado, cheddar cheese, and egg yolks. It may also be found in certain bacteria colonies in the large and small intestines.* Biotin is widely known for its importance in cellular development and its assistance in fatty acid, carbohydrate, glucose and amino acid metabolism. Biotin is also a very importan.