Thiamine has a direct effect on the condition of hair by increasing a nutrient commonly deficient in persons. It can benefit by strengthening curls, increase hair growth, slowing the appearance of gray hair, increase brightness of color, and saturation of hair.
Riboflavin is a well-absorbed water-soluble vitamin, which has a key role to play in maintaining overall human health. It is important for ensuring proper growth and development of reproductive organs, and the growth of body tissues such as the skin, connective tissue, eyes, and the immune system. Riboflavin also plays a major role in enhancing healthy hair, skin, and nails.