The Hair Skin Nail Vitamin Is Supplemented With Vitamin A , Which Is Known To Be One Of The Most Popular Beauty Vitamins, As It Supports The Normal Condition Of The Skin, Vision, And The Proper Functioning Of The Immune System. In Addition, The Product Contains Vitamin B Complex (Biotin, Niacin, Riboflavin) And Zinc , Which Contribute To Maintaining The Health Of The Skin And Nails.