Brittle nails, thinning hair it might be time for an extra boost of biotin! Biotin (vitamin B7) is used to reduce hair loss and thicken nails, but its also used to help reduce muscle cramping and nerve pain. This powerful B vitamin also assists the body in metabolize proteins and break down fats and carbs. Go, Biotin!Benefits: Supports metabolism May support healthy hair and nails Gluten-free Dairy-free Soy-free Nut-free