Valupak Hair, Nails & Skin One-a-Day is a daily multivitamin and mineral supplement designed to support the health and appearance of your hair, skin, and nails. It combines nutrients that help maintain strong nails, promote hair growth, and support skin regeneration. It’s suitable for adults and teenagers aged 12 years and over - especially helpful if diet lacks certain vitamins/minerals, or when nails are brittle or hair seems dull.