Nails resist treatment because of three barriers: the hard keratin plate, a protective biofilm, and formulas that evaporate before they penetrate. This pen is built for all three.
Lipophilic delivery. An oil-based Vitamin E carrier is chemically matched to keratin, so it absorbs into the nail's micro-channels instead of sitting on top.
Biofilm disruption. Propolis helps break down the biofilm that shields the fungal colony, so the active can make contact.
A strong antifungal active. 25% undecylenic acid is the highest concentration available without a prescription.
Fast and sanitary. It dries in under 60 seconds, and the one-way valve pen keeps spores out of the reservoir between uses.
Used consistently twice a day, it supports clearer, healthier-looking nails as they grow out.