Like other B vitamins, biotin (B7) is an essential nutrient that’s extremely important. It helps the body break down proteins, fats, and carbohydrates.[1] It is a cofactor in many enzyme-driven metabolic reactions.[2] And, because biotin deficiency can lead to hair loss (and other effects like depression or an inflamed rash on the face), biotin has been associated with normal hair growth.[3] (more…)