Aluminum chloride antiperspirant for excessive sweating

At a glance

How it works

It forms small plugs in sweat ducts. The effect builds with regular use and fades after you stop.

Where it fits

It is a common first step, even for severe sweating. Insurers may also ask whether you tried it before they cover a prescription drug or procedure.

Over-the-counter vs prescription strengths

Over-the-counter products often contain 6.25% to 15% aluminum chloride. Prescription products can reach 20% or more. Stronger products may work better on hands and feet, but they also irritate skin more often.

How to apply it

Apply it to clean, fully dry skin at bedtime. Wash it off in the morning. Many people start with two or three nights in a row, then use it once or twice a week. Damp skin makes irritation more likely.

If it irritates your skin

Burning, itching, redness, and peeling are common. A lower strength, less frequent use, or shorter contact time may help. Ask a clinician before using a steroid cream.

What to consider

• • Type: antiperspirant applied to clean, dry skin
• • Schedule: nightly at first, then 1-3 times a week
• • Cost: usually low
• • Use: over the counter or by prescription
• • Time to work: days to weeks

Side effects and reasons this may not be safe for you

• • Skin irritation, burning, itching (most common)
• • Redness and peeling, especially at higher concentrations
• • Fabric staining at high concentrations
• • Generally avoided on broken or freshly shaved skin
• • No whole-body absorption of clinical concern at typical use

Compare this option

• Compare: aluminum chloride vs prescription skin treatment that reduces sweating →

Sources for this treatment

Important numbers and approved uses on this page link back to the research or official information that supports them.

Frequently asked

Why apply at night?

Sweat can dilute the product and raise the risk of irritation. Skin is often driest at night, which gives the product time to work.

How is this different from regular antiperspirant?

Regular antiperspirants use milder aluminum salts. Aluminum chloride products are often stronger and may work when a regular product does not.

Can I use it on my face?

Ask a clinician first. Facial skin irritates easily, and the product must stay away from your eyes.

Read next

• Check my sweating →
• Where sweating happens →
• How we research our guides →

Where this fits