Sweat Guide
Everything about sweat.
Finally honest.
A no-shame resource for understanding your body — and what you can actually do about it. Science-based, written for real people.
15.3M
Americans with diagnosed hyperhidrosis. Most have never received proper guidance from a doctor.
American Academy of Dermatology, 2023
Featured article
Science & Biology
Why Your Antiperspirant Stops Working in Summer
You haven't changed. Your antiperspirant hasn't changed. So why does it feel useless by July? The answer is in your sweat glands — and it's not what most brands tell you.
40%
Maximum sweat glands blocked by clinical-strength antiperspirant. The other 60% still gets through.
+230%
Increase in sweat output on a 95°F day versus a 72°F day in the same person.
All articles — 12 guides
Hyperhidrosis
Hyperhidrosis vs. Normal Sweating: How to Know the Difference
There's sweating — and then there's sweating. Here's how to tell which one you're dealing with, and why the difference matters.
5 min read
Treatments
The Honest Guide to Hyperhidrosis Treatments and What They Cost
Botox at $1,500. Surgery at $5,000. Iontophoresis at home. We break down every option without the sales pitch.
10 min read
Fabric & Care
How to Save a Shirt from Yellow Armpit Stains
They come from your antiperspirant reacting with the fabric — not from sweat alone. Here's how to prevent and reverse them.
4 min read
Style
Best Fabrics for Hot Weather, Ranked by a Textile Engineer
Linen, bamboo, Tencel, moisture-wicking polyester — we asked an actual expert which fabrics keep you driest.
6 min read
Work & Social
How to Stop Worrying About Sweat Before a Big Presentation
Anxiety makes sweat worse. Sweat makes anxiety worse. Here's how to break the cycle before it starts.
5 min read
Science
Why Some People Sweat More Than Others
Sweat gland density. Sympathetic nervous system sensitivity. The science of why your body does what it does — and what's actually genetic.
7 min read
"Just drink more water." And other advice that doesn't work.
We collected the 10 most common myths about sweating and looked at what the research actually says.
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