Fatigue, vitamin and mineral deficiencies related to dietary imbalances contribute to brittle nails and hair. These tablets are a dietary supplement specially designed for the beauty of hair and nails. Contains vitamins C and B3 and magnesium which help to reduce fatigue. Zinc helps protect cells from oxidative stress and maintains normal nails. And biotin (vitamin B8) helps maintain normal hair. Hair and nails become stronger, stronger and more beautiful.