NOW Foods Biotin Extra Strength 10 mg - 120 Veg CapsBiotin, also known as vitamin B7, is a watersoluble vitamin essential for normal metabolic processes and the conversion of carbohydrates, proteins, and fats into energy.* This product delivers a highpotency dose of 10 mg (10,000 mcg) per vegetarian capsule to support effective nutrient utilization and daily wellness. Biotin also plays a key role in supporting healthy hair, skin, and nails, while promoting normal immune function and energy production.*