Editorial Policy and Research Standards
Health content demands a higher standard. These are the rules we follow.
By the Horsefil Research & Buying Guide editorial team · Last reviewed October 16, 2026 · How we research
How information is checked
Product details are checked against the seller's published material and, when available, the physical label. Each verified fact is dated.
How sources are selected
- Government health agencies (FDA, NIH, FTC)
- Peer-reviewed research
- Official product labels
- Never: anonymous testimonials or copied marketing text
Labelling of unverified information
Anything we cannot confirm is shown in a clearly marked 'Needs verification' box.
Commercial relationships
Affiliate links are disclosed next to the link. Commercial relationships never change our findings.
Corrections
If you spot an error, contact us. Confirmed errors are corrected promptly and significant corrections are noted on the page.