Protein Formula For Nails No:2 is formulated for thin, peeling or weak nails. Helps to rebuild the links between damaged keratin fibres, whilst increasing nail strength. AHA'S and Panthenol helps the nail structure become stronger and more durable, Glycerin to help increase moisture and brighten the nails, PHA'S help reduce the appearance of any damage on the nails and Panthenol helps to add hydration and is an antioxidant.