Odor & SweatEvidence check
4 Findings About Zinc Oxide for Underarm Odor
The study tested an emulsion, with self-ratings and a short follow-up.
ArticlesTopic 03
Odor & Sweat
Sweating through your shirt, smelling after a shower, and the science of staying fresh.
Odor & SweatEvidence check
Benzoyl Peroxide for Pitted Keratolysis: Did 5% Beat 2.5%?
A two-week trial found no significant advantage for the stronger gel. Improvement did not necessarily mean clearance.
Odor & SweatEvidence check
Glycopyrronium Sweat Cloths: Four-Week Results and the Longer Follow-Up
The controlled trials measured early benefit. The extension followed continuing users without a comparison cloth.
Odor & SweatEvidence check
Iontophoresis for Sweaty Hands: What “97% Improved” Meant
A four-week trial counted changes in a severity score. Another trial weighed sweat.
Odor & SweatEvidence check
Oxybutynin for Excessive Sweating: What Placebo Trials Measured
Small trials reported symptom improvement, but their success definitions, treatment durations and dry-mouth findings differ. A 2026 comparison adds another limitation.
Odor & SweatEvidence check
Does Shaving Reduce Underarm Odor? What the Washing Studies Tested
Separate the smell immediately after washing from all-day protection, and weigh any benefit against irritated skin.
Odor & SweatEvidence check
Aluminum Chloride for Sweaty Feet: 12.5% vs. 30% in a Small Trial
A six-week comparison found improvement with both strengths. Product instructions and skin tolerance still need attention.
Odor & SweatEvidence check
Topical Glycopyrrolate for Facial Sweating: What the Small Trials Measured
Forehead studies found less measured sweat. Short follow-up, small samples and formulation differences limit what those findings can promise.
Odor & SweatEvidence check
Do Zinc Oxide Socks Reduce Foot Odor? What Two Trials Found
The trials measured odor ratings, effects on daily life and pitted keratolysis. A benefit on one measure does not establish a benefit on all three.
Odor & SweatEvidence check
How Common Is Excessive Sweating? What Surveys Found
If you sweat far more than seems normal, you have plenty of company. US surveys put excessive sweating, called hyperhidrosis, at about 3% to 5% of people, and a German workplace screening found 16% reported it. Yet most never see a doctor about it, often because they don't know it's treatable. Here is what the surveys found and why the numbers differ.
Odor & SweatEvidence check
Microwave Treatment for Underarm Sweat: What Trials Show
An in-office microwave device can destroy underarm sweat glands with heat. In a US sham-controlled trial, 89% of treated people improved at 30 days, but so did 54% of the sham group, and the treated group's response settled at about 69% at a year. A Danish trial found it matched Botox for sweat at one year and kept odor down longer. Here is what the trials show, the side effects and the cost question.
Odor & SweatExplainer
Rifampin and Orange Sweat: What About Contact Lenses?
Rifampin can color sweat and tears orange-red. Soft contact lenses can stain permanently. Know which changes to report promptly.
