Verified July 2026 · Cited to primary sources
Sermorelin vs Tesamorelin — evidence grades compared.
The honest verdict
Tesamorelin has the stronger evidence (Grade A vs Sermorelin's Grade B).
Both are strong for this space, but they win on different axes. Tesamorelin is Grade A (FDA-approved, proven for HIV-associated visceral fat) but expensive and narrowly indicated; sermorelin is Grade B and the best-evidenced GH-axis peptide with an affordable, legal compounding route today. For general GH-axis use with a compliant lane, sermorelin; for proven visceral-fat reduction, tesamorelin.
Sermorelin vs Tesamorelin: side by side
| Compared on | Sermorelin | Tesamorelin |
|---|---|---|
| Evidence grade | Grade B | Grade A |
| Legal status | Compoundable (503A) | FDA-approved |
| Safety | Well-characterized human safety (FDA-approved or long clinical history) | Well-characterized human safety (FDA-approved or long clinical history) |
| Primary use | Muscle Growth | Weight Loss |
| Typical cost | $96–$225/month (telehealth); $200–$400/month (clinic) | High — branded Egrifta commonly $3,000+/month retail |
| One-line verdict | Sermorelin is legally compoundable (503A) thanks to its prior FDA approval as Geref. Human evidence is Grade B — real historical trial data. It is the best-evidenced GH-axis peptide with a legal supervised route today. | Tesamorelin is an FDA-approved drug (Egrifta, 2010) — Grade A, the strongest evidence tier here. But it is approved for HIV-associated visceral fat, not general weight loss; for that, approved GLP-1s are the evidence-backed route. |
| Full review | Full Sermorelin review → | Full Tesamorelin review → |
Grades and legal status are assigned by our evidence rubric, not by what we can sell. Highlighted cells mark the stronger-evidence side.
Trying to lose weight?
For weight loss, an approved GLP-1 beats either of these.
Neither peptide here has proven, legally-available weight-loss data that beats an approved GLP-1. Our sister site compares the options that actually work.
Medical disclaimer: This page is independent editorial information, not medical advice, and Best Peptide For That is not a medical provider. We do not provide dosing. Talk to a licensed clinician before starting, stopping, or changing any peptide or medication. Full medical disclaimer.
FAQ
Sermorelin vs Tesamorelin FAQ
Is Sermorelin better than Tesamorelin?
On strength of human evidence, Tesamorelin grades higher (Grade A vs Sermorelin's Grade B). Both are strong for this space, but they win on different axes. Tesamorelin is Grade A (FDA-approved, proven for HIV-associated visceral fat) but expensive and narrowly indicated; sermorelin is Grade B and the best-evidenced GH-axis peptide with an affordable, legal compounding route today. For general GH-axis use with a compliant lane, sermorelin; for proven visceral-fat reduction, tesamorelin.
Which has stronger human evidence, Sermorelin or Tesamorelin?
Tesamorelin has the stronger evidence (Grade A vs Sermorelin's Grade B). We grade every peptide A–F by strength of human evidence: Sermorelin is Grade B (real human trials, limited or historical) and Tesamorelin is Grade A (fda-approved / proven in humans).
Is Sermorelin or Tesamorelin legal to get?
Sermorelin: legal via a compounding pharmacy / telehealth (Compoundable (503A)). Tesamorelin: prescription via a licensed provider (FDA-approved drug). Always confirm current status with a licensed clinician before pursuing either — we don't link gray-market vendors.
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