Growth HormoneResearch profile

GHRP-2 Acetate

Growth Hormone Releasing Peptide-2 · Pralmorelin · KP-102

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

GHRP-2 Acetate is like flipping the switch on your body's growth hormone production. Imagine a turbo boost for your body's natural growth engine, helping it produce more growth hormone than it typically would. This can lead to benefits like improved muscle growth and recovery, making it appealing to those looking to maximize their fitness gains.

When paired with certain other compounds, GHRP-2's effects can be even more pronounced, working in harmony to elevate growth hormone levels beyond what either could achieve alone. It's like having two teammates pushing each other to perform better.

In Japan, GHRP-2 is even used to test how well the pituitary gland is doing its job in producing growth hormone, which gives a hint of its potent effects on the body's hormone systems.

Who it's for

Fitness enthusiasts looking to enhance muscle growth and recovery.
Individuals curious about maximizing their body's natural growth hormone potential.
Athletes seeking a synergistic edge in their training regimen.

Probably not for you if…

Those sensitive to hormone fluctuations like cortisol or prolactin.
People not interested in manipulating their body's hormone levels.
Individuals looking for a weight loss solution without appetite increase.

Editorial summary for research context · Not medical advice

Mechanism of Action

GHRP-2 is a synthetic hexapeptide ghrelin-receptor (GHSR-1a) agonist and one of the earliest GH secretagogues characterized. It stimulates pituitary GH release via a pathway complementary to GHRH, making the two synergistic. Compared to Ipamorelin, GHRP-2 produces larger GH pulses but also modestly elevates prolactin, cortisol, and ACTH at supratherapeutic doses. It is approved in Japan (pralmorelin) as a diagnostic agent for GH deficiency.

Researched Benefits

Potent GH release

Research has shown GHRP-2 produces larger acute GH pulses than Ipamorelin at matched doses.

[Bowers 1998]

GHRH synergy

When combined with a GHRH analog (CJC-1295, Sermorelin), GH response is greater than the sum of either compound alone.

[Bowers et al. 1991]

Diagnostic application

Used clinically in Japan as a provocative test of pituitary GH reserve.

Research Protocols

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

Standard research

Dosage: 200 mcg
Frequency: 2–3x daily
Timing: pre-bed, morning, post-workout
Cycle: 8 weeks

Often stacked with a GHRH analog (Sermorelin or CJC-1295) for synergistic GH release.

Reported Side Effects

Appetite increase (milder than GHRP-6)
Mild cortisol and prolactin elevation at higher doses
Water retention
Flushing and head tingling post-injection
Numbness in extremities at higher doses

Contraindications

Active malignancy
Pregnancy and lactation
Hyperprolactinemia or prolactinoma
Untreated sleep apnea

Stacking Partners

Peptides commonly paired with GHRP-2 Acetate in published research and protocol write-ups.

growth hormone

Sermorelin Acetate

Physiologic GH axis stimulation

growth hormone

CJC-1295 (without DAC)

Preserved pulsatility

Vendor Pricing

66
Guru Peptides
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Size10mg
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/ mg$2.00/mg
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74
Modern Research Peptides
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75
Swiss Chems
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/ mg$3.60/mg
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75
Swiss Chems
Size5mg
Total$19.95
/ mg$3.99/mg
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70
Certified Peptides
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Total$46.00
/ mg$4.60/mg
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69
Almighty Peptides
Size5mg
Total$31.99
/ mg$6.40/mg
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79
Pantheon Peptides
Size10mg
Total$80.00
/ mg$8.00/mg
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74
Purity Peptides
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/ mg$8.71/mg
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Gear + Companions

Reconstitution supplies and research-backed supplement companions for GHRP-2 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

Growth hormone-releasing peptide (GHRP): discovery and structure-activity relationships
Bowers CY · Cellular and Molecular Life Sciences · 1998
PubMed 9813855 →

GHRP-2 Acetate

Mechanism of Action