Growth HormoneResearch profile

Hexarelin Acetate

Examorelin · HEX

Think of it as a turbo boost for your body's growth engine.

Hexarelin Acetate is like a high-octane fuel for your body's growth hormone production. It stimulates a significant surge of growth hormone, more so than some of its peptide cousins, making it a favorite for those looking to maximize their growth potential. Imagine it as a turbo boost that kicks your body into a higher gear of regeneration and recovery.

But Hexarelin isn't just about growth. There's intriguing research suggesting it might also have a protective role for your heart, acting like a safety net for your cardiovascular system. This has made it an exciting subject of study, particularly in how it might help the heart recover from stress or damage.

Lastly, when paired with other growth hormone-releasing helpers, Hexarelin can crank up the effects even more. It's like having a buddy system that amplifies the results, making your body's growth response even more robust.

Who it's for

Athletes looking to recover faster from intense training
Fitness enthusiasts seeking to enhance muscle growth
Middle-aged individuals interested in supporting heart health
Biohackers exploring advanced recovery strategies

Probably not for you if…

People who avoid potential hormonal fluctuations
Those seeking a simple, one-size-fits-all supplement
Anyone uninterested in managing complex regimens

Editorial summary for research context · Not medical advice

Mechanism of Action

Hexarelin is a synthetic hexapeptide analog of GHRP-6 and a potent ghrelin-receptor (GHSR-1a) agonist. It produces the largest acute GH pulse of the classic GHRPs and also binds the CD36 scavenger receptor on cardiac tissue, which has driven distinct research interest in cardioprotection independent of GH signaling. Like other GHRPs, it modestly elevates cortisol, prolactin, and ACTH, and GH response is subject to receptor desensitization with sustained dosing.

Researched Benefits

Maximal GH pulse magnitude

Research has shown Hexarelin produces greater acute GH release than GHRP-2 or GHRP-6 at equivalent doses.

[Arvat et al. 1997]

Cardiovascular research interest

Preclinical work has examined CD36-mediated cardioprotective effects in ischemia-reperfusion and cardiomyopathy models, independent of GH axis.

[Broglio et al. 2002]

GHRH synergy

Combined administration with GHRH analogs produces greater GH release than either alone.

Research Protocols

The following dosing ranges have appeared in published research protocols. Presented for informational purposes only — not a recommendation for human use.

Short-cycle research

Dosage: 100 mcg
Frequency: 2x daily
Timing: morning, pre-bed
Cycle: 4 weeks

Research protocols have generally limited cycles to 4 weeks or less due to observed receptor desensitization and mild cortisol/prolactin elevation with chronic use.

Reported Side Effects

Receptor desensitization with prolonged use (diminishing GH response)
Cortisol and prolactin elevation
Water retention
Head and joint tingling post-injection
Transient fatigue or lethargy
Appetite increase

Contraindications

Active malignancy
Pregnancy and lactation
Hyperprolactinemia
Cardiovascular disease without clinical supervision

Stacking Partners

Peptides commonly paired with Hexarelin Acetate in published research and protocol write-ups.

growth hormone

CJC-1295 (without DAC)

Preserved pulsatility

growth hormone

Sermorelin Acetate

Physiologic GH axis stimulation

Vendor Pricing

66
Guru Peptides
Best $/mg
Size5mg
Total$27.99
/ mg$5.60/mg
In stock
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75
Swiss Chems
Size2mg
Total$21.56
/ mg$10.78/mg
In stock
View
74
Modern Research Peptides
Size2mg
Total$27.99
/ mg$14.00/mg
In stock
View
74
Purity Peptides
Size5mg
Total$43.55
/ mg$8.71/mg
Out of stock
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65
SolXGenix
Size5mg
Total$50.00
/ mg$10.00/mg
Out of stock
View

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Gear + Companions

Reconstitution supplies and research-backed supplement companions for Hexarelin Acetate. Editorial picks only — we earn a commission through Amazon on the click, no sponsorship.

Gear you'll need

· Reconstitution + storage essentials

Bacteriostatic Water 30mL (0.9% Benzyl Alcohol)
Empower Pharmacy / generic medical supply
Reconstitutes every lyophilized peptide. 28-day viability refrigerated.
View at Pantheon →
Insulin Syringes 31G × 5/16" × 0.5mL (100 count)
EasyTouch
31G × 0.5mL insulin syringes — the default size for sub-0.25mL peptide doses.
Buy on Amazon →
Alcohol Prep Pads (Sterile, 200 count)
Dynarex
Sterile 70% IPA prep pads — one per vial stopper + one per injection site.
Buy on Amazon →
1-Quart Sharps Disposal Container
BD / Becton Dickinson
FDA-cleared sharps container — pharmacies won't accept improvised disposal.
Buy on Amazon →

Stacks well with

· Supplement companions — independent evidence, not sponsored

Creatine Monohydrate Powder 1kg
BulkSupplements
Creatine + GH-axis peptides increase lean-mass signaling via different pathways (IGF-1 + phosphocreatine replenishment). Most-studied stack in the literature.
Buy on Amazon →
Whey Protein Isolate 5 lb (Grass-Fed, Unflavored)
NAKED Nutrition
Growth-hormone-axis research is substrate-limited — without adequate protein intake the signaling can't translate to tissue.
Buy on Amazon →

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Research Papers

Endocrine activities of hexarelin, a synthetic growth hormone-releasing peptide, in humans
Arvat E, et al. · Journal of Endocrinological Investigation · 1997
PubMed 9368223 →
Endocrine and non-endocrine actions of growth hormone secretagogues in humans
Broglio F, et al. · Hormone Research · 2002
PubMed 12006712 →

Hexarelin Acetate

Mechanism of Action