Trust and transparency
Editorial standards and evidence methodology
Longevity attracts a lot of confident claims and very little honesty about the evidence behind them. This page explains exactly how we research, source, score and review everything we publish, so you can judge our work and hold us to it.
Our first principle: educational, never a prescription
Jevity is an intelligence platform, not your doctor. We explain mechanisms, evidence and options so you can have a better conversation with a licensed clinician. We do not diagnose, we do not give personal medical advice, and we never provide dosing or a treatment protocol for any compound. Decisions about prescription medicine belong with a clinician who knows your history.
How we tier evidence
Every claim is placed on an honest ladder, and we tell you which rung it sits on rather than flattening everything into a confident yes or no.
- Approved and proven: regulator-approved with strong human trials and hard outcomes.
- Early or mixed: real human data but on surrogate markers, small studies, or with meaningful uncertainty.
- Investigational or preclinical: promising mechanism, animal or lab data, no confirmed human benefit yet.
- Hype or avoid: sold ahead of the science, debunked, or offered through unregulated channels with real risk.
When we do not have verified data on something, we say so. We would rather be honestly uncertain than confidently wrong on a health topic.
The Jevity Score
Where we rank compounds, such as in the Peptide Evidence Index, we use a single transparent score out of 100 built from three components: evidence (the strength and tier of human data), regulatory (status across FDA, WADA and the UAE DHA framework), and supply integrity (whether a legitimate, quality-controlled supply exists). The same method is applied to every item so comparisons are fair. We publish the components, not just the headline number.
Sourcing
We ground factual claims in primary literature, regulatory documents and mainstream clinical guidelines, and we link to the sources so you can check them. We distinguish clearly between what a regulator has approved, what a trial actually measured, and what a marketer is claiming. Reclassification, such as compounding status, is not the same as approval, and we never let those blur.
Medical review
Health content is reviewed within our clinical network before it carries a medical-review byline, and we show the reviewer and the date on the page. Reviewers check that claims match the evidence tier, that nothing reads as personal medical advice, and that safety and legal context is correct for the reader's region. Medical content is re-reviewed on a scheduled cadence and whenever the evidence or regulation changes.
Independence
We do not sell prescription medication, and our rankings are not for sale. Where we earn a commission, for example on a marketplace order, we disclose it, and it never changes an evidence tier or a score. Being the most trusted source is worth more to us than any single sale.
Corrections and updates
Longevity science moves. When we get something wrong or the evidence shifts, we update the page and note that it changed. If you spot an error, tell us at hello@jevity.io and we will look at it quickly.