Promotes healthy growth of nails for fungus, cracking, roughness, discoloration of nails, separation of nails and other problems on the nails. , To use, smooth the nails with lukewarm water, repair the grooves on the nail surface with a nail clipper to remove dirt, apply 3-4 drops of nail serum to the infected nails.Twice a day in the morning and evening. After every 2-3 days of use, polish the surface of the nails and continue to use.