
(explained like you're 5)
Professor Sage from the Sawumi lab had one mission: find out why itchy feet and skin folds keep flaring up, even after the cream. Here is what he found, in 6 simple steps.

Fungus loves warm, damp places. Socks, gym kit and skin folds trap sweat all day, so feet, the groin and folds are its favourite homes.
Once it settles in, fungus builds a sticky shield around itself, called a biofilm. Think of it like a tiny umbrella.
Creams hit the umbrella and slide off. The fungus underneath stays dry and safe. That is why it clears for a week, then comes back.
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A dab of cream goes on one small patch. But fungus does not stay put.
The same fungus can travel from the feet to other warm spots through socks, towels and clothing: between the toes, the groin, the folds.
So while one spot gets treated, the rest of the neighbourhood keeps the party going.
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Professor Sage put three helpers in one bar, and they work in the right order:
1. Tea tree oil (2%) and bentonite clay go after the shield.
2. Piroctone olamine (0.5%), the active trusted in anti-dandruff shampoos, gets to work on the fungus underneath.
3. Bentonite clay soaks up the sweat and moisture fungus needs to come back. Shea butter keeps skin comfortable.
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Then he made it a soap, not a cream. A soap reaches every warm spot at once, every single day, in the shower you already take.
Lather on wet skin. Leave it 30 to 60 seconds. Rinse. Then dry completely, because fungus needs moisture. Take it away.
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Then the bar went out to real people: gym regulars, workers in boots all day, people who had tried every cream. One rule: swap the normal soap for this one, every day.
Individual results vary.
Tested for real: the Antifungal Bar✓ 30-day money-back guarantee

The experiment worked. The Antifungal Bar is rated 4.5 out of 5 from 816 reviews.
That is why, right now, it is Buy 1, Get 1 Free, with free gifts. Use it every day for 30 days. If you can't see or feel the difference, you get your money back.
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Lather feet, groin and folds. Leave it 30 to 60 seconds, rinse, dry completely.
The wash is already done before the socks and boots go on.
Sweaty kit off, quick wash, dry well. No second product.
Clean, dry, comfortable skin before bed.




Buy 1, Get 1 Free, plus free gifts on bundles: soap pouch, jock itch guide, bamboo soap dish.
In stock, ships within 24 hours
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Anywhere fungus likes warm, damp skin: feet and toes, groin, underarms, skin folds, back and chest.
Use daily in the shower. Lather on wet skin, work it into feet, folds and other problem areas, leave 30 to 60 seconds, rinse, then dry the area completely.
A cream covers one spot. A soap washes every warm spot at once, every day, without adding a step to your routine.
Yes. It is a cold-process bar on olive, coconut, shea and castor oils. No SLS, no parabens, no perfume.
Yes. It is made for feet, folds and skin under the chest too. See how it works for under-breast itch.
Use it every day for 30 days. If you can't see or feel the difference, email hello@sawumi.com and we refund every cent. Keep the bar.
Bundles ship a refill every 4 weeks at our lowest price, with the free gifts. Skip, pause or cancel anytime in one click, no fees.
No. Professor Sage is a cartoon we made to explain the science simply. The soap is real, made in small batches by Keiko Sawumi in Japan.
Professor Sage is a cartoon character. Sawumi is a cosmetic cleansing bar, not a medicine. If symptoms persist, see a doctor. Individual results vary.