All caught up on your skincare vitamins? Here’s another one for you: B7, also known as biotin. It produces fatty acids that nourish your skin from the inside out, along with stimulating the production of new cells, helping keep it clear and youthful-looking. Pro tip: Taking biotin supplements isn’t just great for your skin, but for your hair and nails, too. Clinical studies have shown that it can strengthen weak nails and assist in a faster hair growth rate. We know you love an all-rounder!