What it is

Aluminum chloride is the most commonly used topical antiperspirant for managing hyperhidrosis (excessive sweating). Unlike regular deodorants, which only mask odor, aluminum chloride works by blocking sweat ducts, preventing sweat from reaching the skin’s surface.

It is usually prescribed in concentrations between 10% and 20%, though stronger formulas (up to 30%) exist for severe cases. It is applied as a nighttime regimen, when sweat production is naturally lower, allowing the solution to penetrate more effectively.

💡 In Korea, aluminum chloride regimens are often recommended as the first-line treatment before advanced procedures like Botox, iontophoresis, or MiraDry.

Why it’s done

Aluminum chloride regimens are prescribed for patients seeking non-invasive, affordable, and easily accessible treatment.

✔ To control sweating in underarms, hands, feet, or face
✔ To provide a cost-effective alternative to Botox or surgery
✔ To prevent odor, skin irritation, and infections linked to excessive moisture
✔ To improve daily comfort and boost confidence in social and work settings
✔ To serve as a maintenance therapy alongside other hyperhidrosis treatments

In Korea, dermatologists often recommend aluminum chloride for mild-to-moderate cases, particularly in students and younger patients.

Alternatives

If aluminum chloride is ineffective or unsuitable, alternatives include:

➡️ Botox injections – Effective for 4–6 months in underarms, palms, or soles.
➡️ Iontophoresis therapy – Widely used for hands and feet.
➡️ Oral anticholinergics – Reduce sweating systemically but with side effects.
➡️ MiraDry – Permanent sweat gland destruction for underarms.
➡️ Laser or surgical sympathectomy – For resistant or severe cases.
➡️ K-beauty herbal solutions – Mugwort sprays, green tea toners, or cooling essences as mild supportive care.

Preparation

Before starting an aluminum chloride regimen in Korea, proper preparation helps maximize effectiveness:

• 🔹 Skin cleansing → Apply only on completely dry skin to prevent irritation.
• 🔹 Nighttime application → Sweat production is lower at night, allowing deeper absorption.
• 🔹 Avoid shaving or waxing for 24–48 hours before use, as broken skin increases irritation.
• 🔹 Clothing choice → Wear loose cotton clothes at night to avoid rubbing off the product.
• 🔹 Skin patch test → Recommended for sensitive skin to avoid strong irritation.

How it’s Done

The aluminum chloride regimen follows a structured schedule:

1. Application
   • Apply thinly to affected areas (underarms, palms, soles, scalp, or forehead) before bedtime.
   • Use a cotton ball, applicator, or roll-on.
2. Absorption
   • Leave overnight (6–8 hours).
   • Wash off thoroughly in the morning with soap and water.
3. Frequency
   • Start with nightly applications for 7–10 days.
   • Once sweating decreases, reduce to 2–3 times per week as maintenance.
4. Aftercare
   • Apply moisturizer to reduce dryness and irritation.
   • In Korea, many clinics recommend soothing essences or aloe gels as part of aftercare.

Recovery

Recovery is simple since aluminum chloride is a topical therapy:

➡️ Initial irritation – Redness, itching, or mild burning may occur in the first week.
➡️ Adaptation – Skin adjusts after 1–2 weeks of use.
➡️ Maintenance – Sweat reduction usually visible in 1–2 weeks; long-term control requires consistent use.

Korean dermatologists often recommend pairing the regimen with hydrating creams or herbal sprays to keep skin barrier healthy.

Complications

While safe, aluminum chloride regimens can have side effects:

⚠ Possible issues include:

• Itching, burning, or redness (especially if applied on damp skin)
• Irritation after shaving
• Yellow staining on clothes (common with long-term use)
• Limited effectiveness in severe hyperhidrosis

💡 In Korea, irritation risks are reduced by using lower concentrations initially and gradually increasing strength if tolerated.

Treatment Options in Korea

Korea integrates aluminum chloride regimens into a broader hyperhidrosis care system:

🇰🇷 Typical Korean Approach:

• Dermatologist-prescribed 10–20% aluminum chloride solutions for mild/moderate sweating.
• Combined use with moisturizers and calming toners to reduce irritation.
• Step-up programs: If aluminum chloride fails, patients move to Botox, iontophoresis, or MiraDry.
• Availability of pharmacy compounding services to customize strength and formulation.

✅ Final Thoughts

Aluminum chloride regimen in Korea is an affordable and effective first-line therapy for hyperhidrosis. With proper application and skincare, it provides significant relief for patients with mild-to-moderate sweating issues, especially in the underarms, palms, and soles.

While not always sufficient for severe cases, it remains a cornerstone treatment, often combined with Korea’s advanced dermatology solutions like Botox, iontophoresis, or MiraDry. By blending medical science with K-beauty aftercare, Korea ensures patients achieve not only sweat control but also skin health and confidence.