A topical formula to rapidly improve the appearance of unsightly fungal nails. * This patented formula combines the keratolytic, nail-softening, and hydrating effects of propylene glycol, urea and lactic acid, to deeply penetrate the nail, and restore healthy appearance. Preservative free and proven safe in clinical studies. In a recent clinical study, most users saw improvement in nail appearance within two weeks, and 92% of users reported improvement over an 8-week period. Duration of treatment varies according to severity, but in many cases 3-6 months of application may be required to achieve satisfactory results. Applies easily with a no-mess pinpoint silicone tip applicator. Just once daily application. No filing necessary. Normalize thickened nails. Reduce nail discoloration. Proven safe. No preservatives. Odorless. *Kerasal Nail does not cure or prevent fungal infections. Fungal infections of the nail can only be cured by prescription medication.