Biotin, or Vitamin B7 or Vitamin H, is a water-soluble vitamin that’s a part of the vitamin B complex. Sunshine Nutrition’s Biotin 5000 mcg Capsule is a water-soluble B vitamin that promotes healthy hair, skin, and nails. Also acts as a co-enzyme in the metabolism of proteins, fats, and carbohydrates and thereby supports energy production. Biotin is also a crucial nutrient during pregnancy, as it’s important for embryonic growth.