See a visible difference in your nails with Kerasal Nail Renewal Nighttime Nail Patches. Formulated as a topical nail product, Kerasal Nighttime Nail Renewal Patches have a penetrating formula that helps improve the appearance of nails that are damaged by nail fungus. These nail patches work while you sleep, up to 8 continuous hours, deeply penetrating the nail to reduce discoloration and thickness, revitalize brittle nails and improve overall appearance. Prescription nail fungus treatment works to kill fungus, but does not work to improve the appearance of the nail. Kerasal works to help improve the appearance of nails damaged by nail fungus. Kerasal helps to reduce discoloration and thickness, and hydrate and exfoliate brittle nails to soften and loosen the damaged layer, revealing smoother, healthier-looking nails. Use Kerasal Nighttime Renewal Nail Patches nightly to start seeing visible results. May be used on toenails or fingernails. May also be used during the daytime if more convenient.