Home › Learn › Sermorelin testing
Sermorelin testing and certificate of analysis.
GRF(1-29) amide — the native 1-29 fragment of growth-hormone-releasing hormone.
The short answer
Sermorelin is tested by reverse-phase HPLC (UV 214 nm): chromatographic purity plus duplicate quantification in mg per vial against a qualified commercial reference standard. Identity is assessed by retention time against the same standard, with mass-spectrometry confirmation available as an add-on. €133 per vial, 48–72 h target turnaround, and every report verifiable.
What the analysis measures
Purity, quantity, identity
- Chromatographic purity (%). The main peak's share of total integrated area at UV 214 nm. It is a ratio of peptide-related peaks — not a claim about absolute mass content.
- Quantity (mg/vial). Measured content against a qualified commercial reference standard, run in duplicate; both values appear on the certificate next to the label claim.
- Identity. Retention time against the reference standard. That is presumptive identity, and the certificate says so; a mass-spectrometry match (+€79 add-on) confirms it conclusively.
The complete method — column, gradient, wavelength, limits — is published on the open method page.
Reference parameters
The molecule on paper
| Molecular weight | 3357.9 Da |
| Molecular formula | C149H246N44O42S |
| CAS number | 86168-78-7 |
| Class | GRF(1-29) amide — the native 1-29 fragment of growth-hormone-releasing hormone. |
| Also seen as | GRF 1-29, formerly marketed as Geref |
| Tariff category | GH axis |
| Reference basis | A qualified commercial reference standard |
Parameters as recorded in PubChem, rounded. Your supplier's salt form and net-peptide content will differ from free-peptide values.
Worth knowing
Before you test Sermorelin
Sermorelin has pharmaceutical history and correspondingly good reference material. It differs from Mod GRF 1-29 by four substitutions — close relatives, distinct molecules — and the method separates them. An older, well-characterized analyte like this is where independent testing is cheapest to interpret: the standards are solid and the expected behaviour is documented.
Price
€133 per vial, published
Sermorelin testing is €133 at the published rate — see its row in the price list. Add-ons: mass-spectrometry identity confirmation +€79 (adds 5–7 days), extended CoA data +€15, additional report +€29 (at order creation), rush +50%, additional vial of the same lot −30%.
On the certificate
What the CoA shows
- Measured quantity in duplicate, next to the label claim.
- Chromatographic purity with the full impurity table, not just the headline figure.
- The identity basis, stated: retention-time (presumptive) or mass-spectral (confirmed).
- Method reference and version, so the numbers can be interrogated.
- A task ID and QR code, so anyone can verify the report.
New to certificates? Read how to read a peptide CoA and how to verify one.
FAQ
Sermorelin testing questions
How much does Sermorelin testing cost?
€133 per vial at the published rate: chromatographic purity plus duplicate quantification in mg per vial, with a verifiable report. Mass-spectrometry identity confirmation is +€79, extended CoA data +€15, and an additional report +€29 at order creation.
How long does Sermorelin testing take?
The target turnaround is 48–72 hours from sample receipt. A rush option at +50% moves the sample to the front of the queue; the mass-spectrometry add-on adds 5–7 days.
Same category
Also tested in GH axis
Ipamorelin · CJC-1295 DAC · CJC-1295 no-DAC (Mod GRF 1-29) · Hexarelin · GHRP-2 — or see the full price list.
Iberian Analytical opens in Q1 2027 — from €99 per test, 48–72 h target, and every report verifiable. Nothing is sold on this site today. Leave an email and we will write once, when the laboratory starts issuing certificates.
Testing for a business? Apply for an associate account — a 24-month rate lock and priority scheduling.