Source standards
The hierarchy of sources we rely on, and what we will not cite.
Source hierarchy
| Tier | Sources |
|---|---|
| Tier 1 — primary | FDA labels and guidance, NIH, ClinicalTrials.gov, peer-reviewed trials, state pharmacy boards, CMS/NPI records |
| Tier 2 — synthesis | Professional medical societies, systematic reviews, academic medical centers |
| Tier 3 — provider records | Provider websites, terms, pharmacy disclosures, direct correspondence |
| Tier 4 — user signals | Consumer reviews and forums — used only for service-quality patterns, never clinical proof |
What we will not cite
We do not cite competitor blogs for clinical claims, research-chemical sellers, or marketing copy presented as evidence. We do not link to sources that facilitate unlawful purchase of unapproved drugs.