By the Sequora Research Team · Last reviewed: October 20, 2026
Every product page and research guide on Sequora is written from primary scientific literature. This page explains which sources we rely on, how we choose them, and how we keep our content accurate over time.
How we select sources
- Primary literature first. We cite original peer-reviewed studies over summaries, press coverage or vendor material.
- Verifiable identifiers. Each citation includes a DOI or PubMed ID (PMID), so readers can locate the exact paper.
- Chemical data from reference databases. Molecular formulas, weights and sequences are checked against public chemical databases, not copied from other sellers.
- Study design stated plainly. We say whether a finding comes from in vitro, animal or human research, and we do not present early-stage findings as established.
- Conflicting evidence acknowledged. When studies disagree, we say so rather than citing only the favorable result.
Sources we rely on
| Source | What it is | How we use it |
|---|---|---|
| PubMed | The U.S. National Library of Medicine’s index of biomedical literature | Locating peer-reviewed studies and PMIDs |
| PubMed Central (PMC) | The NIH’s free full-text archive of journal articles | Reading full methods and results, not only abstracts |
| PubChem | The NIH’s open chemistry database | Verifying molecular formulas, weights and identifiers |
| ClinicalTrials.gov | The NIH registry of clinical studies | Confirming a compound’s research status and trial phase |
| U.S. FDA | The U.S. Food and Drug Administration | Checking regulatory status |
| DOI resolver | The permanent identifier system for published papers | Linking citations to the publisher’s version of record |
How we review content
- Every page is checked against its cited sources before publishing.
- We review pages periodically and update the “last reviewed” date when content changes.
- Each product is supplied with a batch-matched Certificate of Analysis (COA) from HPLC and MS testing.
- Spotted an error or outdated reference? Contact us and we’ll review it.
Important notice
Content on this site is provided for scientific and educational reference only. It is not medical advice, and nothing here describes use in humans or animals.
For laboratory research use only. Not for human or veterinary use.