Hexarelin vs GHRP-6
Both are first-generation synthetic ghrelin-receptor agonists, and both are six residues long. Hexarelin is generally reported as the more potent of the two, while the published work also highlights how rapidly the receptor response to it fades.
Potent synthetic ghrelin-receptor agonist
Choose Hexarelin if
- ✓ Your question concerns receptor desensitisation
- ✓ You want the more potent early secretagogue
First-generation ghrelin-receptor agonist
Choose GHRP-6 if
- ✓ You need the original reference GHRP
- ✓ You are comparing broader hormonal effects
Side-by-side specification
| Compare | Hexarelin Potent synthetic ghrelin-receptor agonist | GHRP-6 First-generation ghrelin-receptor agonist |
|---|---|---|
| Class | Ghrelin-receptor (GHS-R) agonist | Ghrelin-receptor (GHS-R) agonist |
| Research area | GH axis | GH axis |
| Receptor targets | GHS-R1a | GHS-R1a |
| Length | 6 amino acids (C-terminal amide, contains D-residues) | 6 amino acids |
| Molecular mass | ≈ 887 Da | ≈ 873 Da |
| Origin | Synthetic | Synthetic, enkephalin-derived |
| Evidence level | 2/5 Mostly animal and in vitro | 2/5 Mostly animal and in vitro |
| Regulatory status | Not approved | Not approved |
| Nordapep from | Not listed | Not listed |
| Best price per mg | Not listed | Not listed |
| View Hexarelin at Nordapep → | View GHRP-6 at Nordapep → |
What separates them
For research, GHRP-6 is the classic reference compound. Hexarelin is useful when receptor desensitisation or cardiac-binding questions are the focus.
Read the full guides for Hexarelin and GHRP-6, or add a third compound in the comparison tool.
FAQ
Are they the same receptor target?
Yes. Both act on the ghrelin (GHS-R1a) receptor.
Are either approved?
Neither is an approved medicine.
Are Hexarelin and GHRP-6 approved medicines?
Hexarelin: Not approved. GHRP-6: Not approved. Research-grade material of either is not a medicine and is supplied for in vitro research only.
Where can I buy Hexarelin and GHRP-6?
Nordapep lists compounds with a Certificate of Analysis matched to the batch reference. Check each compound page for current availability.
More comparisons
Where to buy
Why we send researchers to Nordapep
Comparing compounds is only half the job. The other half is knowing the vial contains what the label says. Nordapep publishes batch documentation for every compound it sells.
Browse the Nordapep catalogue →Each batch reference on the label matches its CoA, so you can check what is in the vial.
Enter the batch reference from your vial into Nordapep's batch-verification tool.
Purity is reported by RP-HPLC, the standard method for peptides of this size.
Bundled stacks for common comparisons, plus tiered pricing for volume orders.