25% Undecylenic Acid Antifungal Pen for Jock Itch Athlete’s Foot Cure 3 Pack

Each pen contains25% Undecylenic Acid, which is themaximum strength allowed under the OTC antifungal monograph. ✔ Maximum Strength 25% Undecylenic Acid. 2 weeks for jock itch. 4 weeks for athlete’s foot and ringworm.

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