How to Stop Underarm Sweating: Beyond Regular Antiperspirant

Standard supermarket antiperspirants typically contain aluminium salts at concentrations of around 10 to 20 percent. For most people without hyperhidrosis, this is sufficient. For someone with axillary hyperhidrosis, sweat gland activity far exceeds what these concentrations can manage and the product is simply outpaced. Excessive underarm sweat is not a hygiene failure, it is a physiological one. The eccrine sweat glands in the underarm area are overactive, producing far more moisture than the body needs for temperature regulation, regardless of heat or exertion.

Clinical-strength antiperspirants are formulated at higher concentrations and designed specifically for hyperhidrosis management. They are applied to clean, dry underarms at night to allow the active ingredients to enter the sweat ducts effectively, rather than being washed away after a morning shower. This difference in application technique is one reason clinical-strength products consistently outperform supermarket options for axillary hyperhidrosis.

SudorGuard is SudorCure's clinical-strength antiperspirant spray, formulated with Aluminium Chlorohydrate for people with hyperhidrosis. Applied correctly before bed on completely dry skin, it provides a more sustained reduction in underarm sweating than standard products. It is a practical first step or a useful complement to other treatments for axillary hyperhidrosis. Many people use SudorGuard alongside iontophoresis for day-to-day confidence while working through the initial treatment phase.

For moderate to severe axillary hyperhidrosis, iontophoresis is a highly effective next step. The Saalio® Underarm Iontophoresis Device (AX Set) uses flexible sponge electrodes soaked in water, held in place against the underarms. A mild electrical current is delivered through the electrodes, following the same phased treatment protocol as hand and foot iontophoresis. It is drug-free, has no systemic side effects, and can be done entirely at home.

The underarms tend to be more sensitive than the hands and feet, so current is typically started at 1 to 3 mA and built up gradually over the initial sessions. The initial phase runs for 4 to 6 weeks, after which most people move to one to two maintenance sessions per week to keep underarm sweating under control. Many people find their response builds over time and can go weeks between sessions as their maintenance requirements reduce.

Botulinum toxin injections are a well-established treatment for underarm sweating, with results typically lasting 4 to 6 months. Unlike palmar and plantar hyperhidrosis, axillary hyperhidrosis Botox attracts a Medicare rebate under MBS item 18362 for eligible patients, significantly reducing out-of-pocket costs for those who qualify. A GP referral and prior trial of aluminium chloride antiperspirant are required. A dermatologist can assess whether this is the right step for your situation.

For most people, a combined approach works best. SudorGuard for day-to-day confidence and iontophoresis as the primary treatment for progressively reducing underarm sweating over time. Starting with SudorGuard and evaluating results over two to four weeks of consistent correct application is a reasonable first step. If results are partial, the Saalio® Underarm Iontophoresis Device (AX Set) is the logical progression for axillary hyperhidrosis. Both can be used together without any conflict.

Getting the most from SudorGuard comes down to correct technique. Apply to completely dry underarms at night, not after a morning shower. If you have shaved recently, allow at least 24 hours before applying to avoid irritation. The skin needs to be fully at rest for the active ingredient to enter the sweat ducts effectively. Start with daily applications and reduce to one to two nights per week once your desired level of underarm sweating control is reached.

If you have been managing underarm sweating for some time with limited results, a conversation with a dermatologist is worthwhile. They can assess severity using a standardised scale, confirm a diagnosis of axillary hyperhidrosis, and discuss options including prescription-strength treatments or Botox. You are not limited to managing this alone, and a structured treatment plan makes a real difference for most people. You are also welcome to reach out to us at hello@sudorcure.com and we are happy to help guide you through your options.

Shop SudorGuard or explore the Saalio® Hire Program to try iontophoresis at home before committing to a purchase.