Dermadry is designed to treat hyperhidrosis—otherwise known as excessive sweating. The brand’s medical device uses iontophoresis, a safe, effective, non-invasive, drug-free, and needle-free way to treat excessive sweating. Iontophoresis is a simple at-home treatment, referred to as a tap water iontophoresis, and it works by directing a small current through the skin, effectively neutralizing the connection between the nerves and the sweat glands. Dermadry treats severe sweating of feet, hands, and underarms with up to 6 weeks of dryness. Dermadry is cleared by the US Food & Drug Administration, licensed by Health Canada, and is trusted and recommended by dermatologists.