Tesamorelin vs Sermorelin
Research & educational use only. This content is not medical advice. Consult a qualified healthcare professional before using any peptide compound.
Tesamorelin and Sermorelin are both growth hormone peptides that come up together constantly. This is a side-by-side comparison on the data that actually matters — evidence tier, FDA status, human trials, and how to source each safely — not hype. It is for research and educational purposes only.
Tesamorelin vs Sermorelin: side-by-side
| Tesamorelin | Sermorelin | |
|---|---|---|
| Evidence tier | Tier 1 | Tier 2 |
| FDA status | FDA Approved | Not FDA Approved |
| Human RCTs | 6 | 2 |
| Subjects enrolled | 800 | 150 |
| Animal studies | 15 | 20 |
| Category | growth hormone | growth hormone |
| Half-life | Approximately 25-40 minutes. | Short plasma half-life (minutes). |
| Community logs | 0 | 0 |
Key differences
Tesamorelin rests on stronger human evidence (Tier 1) than Sermorelin (Tier 2) — that means more confidence its observed effects are real rather than artefacts of weaker study designs. Tesamorelin is FDA approved for specific uses, while Sermorelin is not fda approved and treated as a research compound in the US.
Tesamorelin has 6 human trials on record (800 subjects) versus Sermorelin's 2 (150 subjects). Evidence tiers are a shorthand for how strong that human data is — see our guide to understanding peptide evidence tiers for how to weigh them.
What is Tesamorelin?
Tesamorelin is a synthetic growth hormone-releasing hormone (GHRH) analog approved by the FDA (as Egrifta) to reduce excess visceral abdominal fat in people with HIV-associated lipodystrophy. It is supported by phase 3 randomized controlled trials for that specific indication. It is a prescription medication and is… Full Tesamorelin breakdown →
What is Sermorelin?
Sermorelin is a synthetic peptide corresponding to the first 29 amino acids of growth hormone-releasing hormone (GHRH 1-29). It was previously marketed in the United States (as Geref) for diagnostic and pediatric growth indications and is no longer sold as an approved product, though it remains available through… Full Sermorelin breakdown →
Where to buy Tesamorelin or Sermorelin safely
Both are sold by research-chemical suppliers, not pharmacies, so the source matters as much as the compound. Before buying either, vet sellers on third-party lab testing and enforcement history in the ranked directory of trusted peptide sellers — or jump straight to vetted sources for Tesamorelin or Sermorelin. PeptidesHub does not sell either compound.
Frequently asked questions
Tesamorelin and Sermorelin are both growth hormone peptides. Tesamorelin rests on stronger human evidence (Tier 1) than Sermorelin (Tier 2) — that means more confidence its observed effects are real rather than artefacts of weaker study designs. Tesamorelin is FDA approved for specific uses, while Sermorelin is not fda approved and treated as a research compound in the US. See each compound's full evidence breakdown for the underlying studies.