Growth HormoneResearch profile

Ipamorelin

Ghrelin mimetic · 伊帕瑞林

Think of it as a gentle nudge for your growth hormone.

Ipamorelin is like a backstage crew member at a concert, subtly encouraging your body's natural growth hormone to take the stage without stealing the spotlight. It sends a signal that helps boost your body's own growth hormone production, but without the side effects of older methods.

This peptide has been linked to helping improve recovery and sleep. Some people report feeling more rested and recovering faster from their workouts, thanks to its ability to enhance the natural nighttime release of growth hormone.

It's also been noted for its potential to support body composition goals. When combined with other compounds, it may help amplify the effects on muscle growth and fat loss, making it a popular choice for those looking to refine their physique.

Who it's for

Fitness enthusiasts looking to enhance recovery
People aiming to improve sleep quality
Those interested in supporting muscle growth and fat loss
Biohackers seeking a gentle boost in growth hormone

Probably not for you if…

Casual exercisers not focused on recovery or body composition
Individuals looking for appetite suppression
People seeking immediate or dramatic results

Editorial summary for research context · Not medical advice

Mechanism of Action

Ipamorelin is a pentapeptide growth-hormone secretagogue and selective ghrelin-receptor (GHSR) agonist. Unlike older secretagogues (GHRP-2, GHRP-6), it produces minimal effect on cortisol, prolactin, or appetite at standard research doses. It stimulates pulsatile GH release from the pituitary, complementing endogenous secretion rather than overriding it.

Researched Benefits

GH pulse amplification

Research suggests selective GH release without significant cortisol or prolactin elevation.

[Raun et al. 1998]

Recovery & sleep quality

Anecdotal and small-trial reports of improved sleep depth and recovery via nocturnal GH pulse enhancement.

Body composition support

Combined with GHRH analogs (CJC-1295), research protocols have shown synergistic GH/IGF-1 elevation.

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, fasted morning, post-workout
Cycle: 8 weeks

Often combined with CJC-1295 (no DAC). 8-12 week cycles common in research protocols.

Conservative research

Dosage: 100 mcg
Frequency: once daily
Timing: pre-bed
Cycle: 12 weeks

Lower-dose long-duration protocol focused on sleep and recovery endpoints.

Reported Side Effects

Mild water retention
Head/joint tingling (paresthesia) reported at higher doses
Minor fatigue post-injection

Contraindications

Active malignancy
Pregnancy and lactation
Known hypersensitivity to ghrelin-receptor agonists

Stacking Partners

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

growth hormone

CJC-1295 (without DAC)

Preserved pulsatility

growth hormone

Tesamorelin

Visceral adipose reduction

Vendor Pricing

74
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Southern Aminos
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66
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Gear + Companions

Reconstitution supplies and research-backed supplement companions for Ipamorelin. 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

Ipamorelin, the first selective growth hormone secretagogue
Raun K, et al. · European Journal of Endocrinology · 1998
PubMed 9849822 →

Ipamorelin

Mechanism of Action