Antifungal Pen – 25% Undecylenic Acid, Toenail Fungus Treatment Extra Strength

Whether it’s itching, scaling, or irritation in hard-to-reach areas, this targeted solution supports healthy, clear-looking skin with daily use. At its core is 25% Undecylenic Acid—the highest strength permitted for topical use under OTC antifungal drug monograph standards.

eBay