Kerasal Fungal Nail Remedy .33 Oz. This product is a topical formulation that may be clinically confirmed to impulsively reinforce the semblance of unpleasant toe or finger nails broken by means of fungus, psoriasis or trauma.* The patented formulation combines the keratolytic, nail-softening and hydrating results of propylene glycol, urea and lactic acid, to deeply penetrate the nail, and repair wholesome look.