Dermadry is an FDA-cleared home-use tap water iontophoresis machine. This technology works by directing a mild current through the skin, effectively neutralizing the connection between the nerves and the sweat glands. In nearly all cases, this effectively treats excessive sweating!

Scientific Evidence

A lot of research has been conducted on the effectiveness of tap water iontophoresis in the treatment of hyperhidrosis.

The following clinical studies were performed on patients aged 8-71 years old with primary focal hyperhidrosis (mild, moderate, and severe). These clinical studies evaluated the efficiency of iontophoresis in both in clinical conditions (performed by healthcare professionals in a medical facility) and at home (patients were provided with devices and performed treatments on their own). The treatment parameters were similar in regards to the current strength, treatment duration, and treatment frequency.

Here’s a look at their findings:
  • Tap water iontophoresis treatments improve the patient’s quality of life significantly during treatment.6
  • 92.9% of patients saw results after two weeks of iontophoresis treatments.7
  • 88.9% of patients had positive results,and a majority of the patients found the maintenance program compatible with their lifestyle.8
  • Quality of life improved in 78.6% of patients after 2 weeks.9
  • Tap water iontophoresis is a simple, safe and effective therapeutic option for palmoplantar hyperhidrosis.10
  • Tap water iontophoresis is a safe and effective treatment for both palmoplantar (hands and feet) hyperhidrosis and axillary (underarms) hyperhidrosis in the pediatric population, with minimal side effects.11
  • Tap water iontophoresis is an effective method of treatment for primary palmoplantar (hands and feet) and axillary (underarms) hyperhidrosis in pediatric patients.12
  • The study demonstrates that tap water iontophoresis controls palmar (hands) hyperhidrosis after a total of eight treatments.13
  • Iontophoresis treatment is safe, effective, and easy to use for the treatment of palmar and plantar hyperhidrosis. This technique should be offered to patients with palmoplantar hyperhidrosis prior to surgical intervention or toxin injection.14
  • Tap water iontophoresis suppresses palmar hyperhidrosis. When instructions are followed, tap water iontophoresis is safe for unsupervised treatment of hyperhidrosis. Iontophoresis is a simple, economic and effective therapy that should be offered to patients for control of palmar hyperhidrosis prior to surgical intervention. Iontophoresis is also a suitable alternative to long-term drug therapy. The study demonstrated a success rate of 83.3%.15
  • At present, tap water iontophoresis represents the most effective therapy in hyperhidrosis of palms or soles. Patients with extremely high sweat rates respond to the treatment, no adverse effects were noticed during long-term maintenance treatment, and tap water iontophoresis not only curbs sweating, but also abates other uncomfortable symptoms, such as lividity, edema and clamminess of palms and soles.16
  • We found the treatment to be so effective in axillary (underarms) hyperhidrosis that we would recommend iontophoresisin preference to surgical excision of the sweat-glands.17
  • In our view, tap water iontophoresis is by far more successful in treating hyperhidrosis of palms and soles. In a group of 7 patients, complete relief from excessive sweating was achieved and no treatment failure was observed.18
  • Since 1968, tap water iontophoresis has been employed as the method of choice for treating palmoplantar hyperhidrosis.19
  • In 2014, an FDA panel reviewing scientific data on the matter concluded that “all 8 studies reported that tap water iontophoresis effectively reduced sweating in the majority of subjects treated with [tap water iontophoresis]”.20


Some key points about iontophoresis treatment:
  • The use of tap water ensures uniform treatment over the targeted areas.
  • Providing an adequate level of current on the targeted area will reduce sweat in most cases.
  • The treatment’s success partly depends on the current strength that is used.
  • Higher current strengths are more efficient and should be used for severe sweating.
  • The treatment strength should be changed in accordance with skin sensitivity.
  • Hands and feet can tolerate a higher current strength than underarms.
  • Following the initial treatment phase, results must be maintained by following a treatment schedule.
  • The frequency of treatments is dependant upon the severity of the hyperhidrosis.

Why choose Dermadry?

Dermadry’s iontophoresis machine is a non-invasive, drug-free, and needle-free treatment option that effectively treats excessive sweating. Dermadry is a trusted solution, as showcased on the non-profit organization the International Hyperhidrosis Society's website.

We offer a solution for people who suffer from excessive sweating of the hands, feet also known as palmar, plantar, and axillary hyperhidrosis. Our products are tailored to meet specific customer needs, whether an individual sweats only from their hands and feet, only from their underarms or from all three areas.

Dermadry's iontophoresis device distinguishes itself through its affordability, intuitive use, and its cutting-edge technology. We are the only tap water iontophoresis machine that has received a medical device license from Health Canada.

For Hands and Feet

For Underarms


Is Dermadry right for me?

Intended Use: Dermadry is a home-use tap water iontophoresis device designed for single patient use. It is indicated for the treatment of moderate to severe palmar, plantar, and axillary hyperhidrosis by those 13 years and older.

Please refer to the contraindications listed below to know if Dermadry is right for you.


In Canada, tap water iontophoresis machines are a Class II medical device.


DO NOT use this device if you have any of the following conditions:
  • Cardiac pacemaker
  • ICD (implantable cardioverter defibrillator)
  • Suspected or diagnosed heart problems (e.g. cardiac arrhythmia)
  • Seizure disorders (epilepsy)
  • Pregnant or suspected pregnancy
  • Metal-containing intrauterine device (IUD)
  • Metallic implants
  • Large skin lesions and lesions that cannot be covered with petroleum jelly
  • Numbness in the treated areas
  • Infections or irritated skin
  • Impaired sensation in hands, underarms or feet (e.g. polyneuropathy)
  • Malignant disorders in the area of application
  • Severe vascular disorders (e.g. local inflammation or thrombosis)

NOTE: If in doubt, please contact your health professional.

Side effects

You may experience the following temporary side effects:
  • Irritation, skin reddening (erythema), burning sensation, small blisters (vesiculation), and itching (pruritus). Wait until symptoms disappear completely before starting your next treatment.
  • Tingling and stinging sensations. Muscle numbness (paresthesia) may occur. Slight pain could be felt at the beginning of the treatment or after the polarity alternating sequence. If you feel any of the above side effects, reduce intensity during next treatment.
  • Increased sweating: After the first few treatments, you may experience an increase in sweating. This symptom will subside after a few treatments.
  • Small electric shocks during treatment: In very rare cases, a harmless electric shock may occur if treatment is interrupted suddenly. To avoid this risk, remove your hands, feet or underarm electrodes slowly.
  • Skin dryness: Skin may become dry, small lesions or scaling may occur. To reduce these symptoms, use a moisturizing cream after treatments.
  • Aluminum may cause minor allergic reactions for some users. They may develop red, bumpy, scaly, itchy or swollen skin at the point of contact. If you notice any allergic reaction developing on the treated area of skin, stop using the device and contact Dermadry’s Customer Service.



Choose the Device that's Right for You!



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