Supplement guides
Supplement guides, page 4
Plain-English guides on labels, doses, real prices, free trials and refunds. Written to help you check a product, not to sell you one.
Does ginkgo biloba help memory? What the GEM trial found
The GEM trial of 3,069 older adults found no less dementia with ginkgo. Compare its 240 mg dose with memory labels, and check the bleeding caution.
IngredientsGlucomannan for weight loss: dose, evidence and safety
What trials found on glucomannan (konjac fiber) for weight, the doses studied, the esophageal blockage case reports, and how to check a supplement label.
EvidenceDo glucosamine and chondroitin work? What the evidence shows
What the GAIT trial and NIH say about glucosamine and chondroitin, the doses studies used, and how to check a joint supplement label.
ResearchGreen flags of a trustworthy supplement sales page
The positive signals to look for on a supplement page: a full label, a real company, matching studies, plain terms and modest claims.
SafetyGreen tea extract and EGCG in weight-loss supplements: safety facts
EGCG doses, liver injury reports from EFSA, USP and NCCIH, and why weight-loss offers that hide the green tea amount are a safety problem.
LabelsGummies vs capsules vs powders: how dose and label accuracy differ
What fits in a gummy, where sugar appears on the label and what a 2026 study found about label accuracy across forms.
EvidenceDo hair loss supplements work? What the evidence supports
What a biotin review found, why deficiency matters more than marketing, how biotin can skew thyroid labs, and what to check on a hair supplement label.
ResearchWhat should you check before buying a health ebook or video program?
A practical checklist for fitness ebooks, back-pain courses and diet programs: authors, evidence, samples, realistic results, safety and refunds.
EvidenceHearing and tinnitus supplements: what the evidence shows
What reviews of zinc and ginkgo found for tinnitus, what the NIDCD recommends instead, and what to check on an ear-health supplement label before you buy.
PricingHow to cancel a supplement subscription and stop repeat charges
Cancel in writing before the next bill, keep proof, watch your statement, and know when to dispute a repeat charge with your card issuer.
Guides are general information, not medical advice. Read how we review and our medical disclaimer.