49 published test results across 14 vendors · latest: 14 Sept 2026
| # | Vendor | Tests | Price/mg | Score |
|---|---|---|---|---|
| 1 | ZZLZ Peptide Unverified | 5 | $1.52 | 57 |
| 2 | PPeptide Partners | 2 | $9.90 | 53 |
| 3 | NNuLife Peptides Unverified | 2 | — | 52 |
| 4 | QQing Li Peptide Unverified | 6 | $5.00 | 51 |
| 5 | HHXNet Unverified | 3 | — | 49 |
| 6 | SShanxi Qianyecao Biotech QYC Unverified | 3 | $2.00 | 48 |
| 7 | BBulk Peptide Supply | 1 | — | 47 |
| 8 | HHK Peptides Unverified | 6 | $1.57 | 45 |
| 9 | SSRY Labs Unverified | 3 | — | 41 |
| 10 | PPeptide-S Unverified | 3 | — | 36 |
Computed from publicly published third-party results. How scoring works · every listing is free and un-buyable. Vendors marked Unverified appear for their published results but are left out of the vendor rankings.
Sermorelin is the first 29 amino acids of GHRH and once held actual FDA approval as Geref before commercial withdrawal. That pharmaceutical past keeps it a fixture of compounding-clinic protocols today.
Sermorelin is unusual in this index for the opposite reason most compounds are: the legitimate route is often easier than the gray one. Because it is a known pharmaceutical entity, licensed compounding pharmacies dispense it under prescription through longevity and hormone clinics. The research-chemical record, by contrast, is the thinnest of any major GH peptide we track: 31 published tests across 7 vendors, with scores between 43 and 55 and per-mg pricing from $1.00 to $1.57. Nobody in this market has a deep record, and the scores show it.
A compounded prescription comes with pharmacy oversight, sterility standards, and someone accountable if the product is wrong. A research vial comes with, at best, a published test for a batch. For most compounds on this site that comparison is theoretical because no legal route exists. For sermorelin it is real, which changes the calculus: the gray market’s only advantage is price, and with just 31 published tests behind 7 vendors, the discount buys a lot of uncertainty.
The original brand was withdrawn from the market for commercial reasons, not safety ones. Compounding pharmacies continue to prepare it under prescription, which is a different channel from the research vendors ranked above.
Small records. Five tests is the deepest single-vendor history here, and our scoring discounts thin evidence, so even clean results cap out in the 50s.
Published pricing among scored vendors runs $1.00 to $1.57 per milligram as of September 2026. Compare that against a clinic quote per month before assuming the vial is the bargain.
Nothing on this page is medical advice; compounds shown are sold for research purposes only. Data is aggregated from publicly published third-party results and traces to its source.