A member of the B-vitamin family, biotin is also known as “the beauty nutrient” due to its effectiveness in hair, skin and nail health. Biotin supplements are also helpful on the inside by metabolizing carbohydrates, fats and proteins as well as delivering energy throughout the body. Healthy food sources of this valuable vitamin include oatmeal, bananas, sunflower seeds, eggs and mushrooms. While most biotin supplements come in a 5 mg dose, higher potency formulas such as Timed-Release Biotin are available. Check out the customer reviews in the products below to learn more about biotin.