Kerasal Multi-Purpose Nail Repair, Nail Solution for Discolored and Damaged Nails, 0.43 fl ozOne 0. 43 fl oz package of Kerasal Multi Purpose Nail Repair Helps reduce discoloration and thickness, as well as hydrate and exfoliate brittle nails to improve the appearance of damaged nails Combines the keratolytic properties of urea with hydrating propylene glycol and lactic acid to penetrate nail plates To use: apply thin later 2x per day for first week, then 1x per day thereafter Works on multiple causes of nail damage such as nail psoriasis,