Supplements, beauty products and hair treatments sold to women, checked against the research. With one extra question every time: was it ever studied on women?
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The FDA warns that high-dose biotin can make some lab results wrong, including the troponin test for heart attacks. Tell your doctor everything you take before blood work.
A 2024 study found metals in all 30 tampons it tested, but didn't measure what gets into the body. In 2026, an FDA lab study found the amount likely released during use is too small to cause harm.
Frequent users had a 4.05% chance of uterine cancer by age 70, vs 1.64% for never-users, in one NIH study. It can't prove cause.
The FDA tested 95 benzoyl peroxide products. 6 had elevated benzene and were recalled. It called the cancer risk very low.
Most healthy adults: up to 400 mg a day. A 16 oz can ranges from 54 to 328 mg, so cans add up fast.
We found no published trial showing a greens powder reduces bloating. The best-studied one tested 15 women and 15 men without bloating.
A Cochrane review: about twice as likely to see regrowth as placebo, and 2% did as well as 5%.
In 410 women, 82% said their acne improved at 24 weeks vs 63% on placebo. Headaches were more common.
One 30-day trial in women with PCOS: hormones dropped, but measured hair growth didn't change.
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