

Hexarelin is a synthetic hexapeptide growth hormone secretagogue, structurally derived from GHRP-6 with a 2-methyl substitution on the D-tryptophan at position 2.
Hexarelin is a synthetic hexapeptide growth hormone secretagogue, structurally derived from GHRP-6 with a 2-methyl substitution on the D-tryptophan at position 2.
It acts at GHS-R1a and also shows affinity for CD36, a scavenger receptor - a dual-receptor profile that distinguishes it from the more selective Ipamorelin and is the reason it appears in receptor-specificity comparisons.
The two tryptophan residues make the sequence noticeably light-sensitive; keep vials in their secondary packaging until use.
| Compound name | Hexarelin |
| Classification | Endocrine research compound |
| CAS number | 140703-51-1 |
| Molecular formula | C47H58N12O6 |
| Molecular weight | 887.04 g/mol |
| Sequence | His-D-2-methyl-Trp-Ala-Trp-D-Phe-Lys-NH2 |
| Purity (this lot) | 99.2% by RP-HPLC |
| Endotoxin | <0.5 EU/mg by LAL |
| Appearance | White lyophilized powder |
| Vial size | 10 mg |
| Solubility | Freely soluble in water |
| Storage | Lyophilized: -20 C, desiccated. Reconstituted: 2-8 C, use within 30 days. |
| Released lot | PS-7132129 |
Vials arrive lyophilized and sealed under nitrogen. Bring the vial fully to room temperature before breaking the seal — opening a cold vial condenses atmospheric moisture onto the cake.
Direct diluent gently against the inside wall of the vial rather than onto the cake, and allow the material to dissolve without agitation. Vortexing shears longer sequences and introduces air.
Lyophilized: -20 C, desiccated. Reconstituted: 2-8 C, use within 30 days.
A full walkthrough is in the reconstitution guide, and the calculator will work out concentration and draw volume for this vial size.
Standard laboratory practice applies: appropriate personal protective equipment, no consumption, no administration to humans or animals, and disposal in accordance with institutional protocol and local regulation.
Both certificates below were generated against this specific lot and published before it was released to stock. Enter the lot number in the certificate lookup to retrieve them at any time. New to reading these? See how to read a certificate of analysis.
Both act at GHS-R1a, but Hexarelin also binds CD36, so it is the less selective of the two.
Two tryptophan residues, which are among the more photo-labile amino acids.
Yes - it is GHRP-6 with a 2-methyl group added to the D-tryptophan at position 2.
Hexarelin is supplied for in-vitro laboratory research only. It is not a drug, dietary supplement, food or cosmetic, is not approved by the FDA for any use in humans or animals, and no dosing guidance is published for it. Nothing on this page is a therapeutic, structure–function or health claim. Purchasers must be 21 or over and are responsible for compliance with all applicable law. Full terms of supply.