Opti-Nail® delivers a thin layer of powerful solution that quickly absorbs into the nail surface. The nail will have a visible shine which quickly fades as the solution dries. As long as you see some shine, you’ve applied enough. Opti-Nail® is an easy-to-use cosmetic product that repairs the appearance of fungus-damaged nails. Opti-Nail® has a clinically proven formula that penetrates the nail surface for results you can see quickly.