Ipamorelin
Ipamorelin — selective ghrelin/GHS-R1a receptor agonist that produces clean GH pulses with minimal cortisol, prolactin, or appetite side effects.
- Selective GHS-R1a agonism — GH release without cortisol or prolactin elevation
- Minimal appetite stimulation — unlike GHRP-6, suitable for cutting protocols
- Produces defined GH pulses — ideal for bedtime and pre-workout timing
- Synergistic with GHRH analogues — two-pathway GH stimulation
- Excellent tolerability profile — most used GH secretagogue in longevity medicine
Why people research Ipamorelin
These are the specific situations and goals that lead researchers to Ipamorelin. For research purposes only.
Dosage Calculator
Reference dosing by experience level. For research use only — always consult a licensed healthcare provider.
⚠ For research reference only. Ipamorelin is not approved for human use. Always consult a qualified healthcare professional.
What's in the Box
Every Poptides order arrives in premium packaging, ready to use.
Ipamorelin Vial
Your selected amount of lyophilized Ipamorelin in a sealed, sterile glass vial with silver crimp cap. COA included on request.
BAC Water 3mL
Bacteriostatic water for reconstitution, included with every injectable peptide order. Maintains sterility for multi-dose use.
Syringe Kit
5 × insulin syringes with orange caps, individually sealed, in a dedicated Poptides-branded box.
Research Guide Card + Thank You Note
A QR code card linking to your product's research guide, plus a personal thank you note from the Poptides team.
Discreet Outer Packaging
All orders ship in plain, unmarked outer packaging with no reference to Poptides on the exterior.
How Ipamorelin Works
The mechanism of action, step by step.
GHS-R1a Receptor Activation
Ipamorelin selectively binds the ghrelin receptor (GHS-R1a) on pituitary somatotrophs, triggering GH release through a pathway distinct from GHRH signalling — enabling additive effects when combined with GHRH analogues.
Cortisol and Prolactin Neutrality
Unlike GHRP-2 and GHRP-6, ipamorelin does not meaningfully activate ACTH or prolactin pathways at standard doses, making it the cleanest GH secretagogue in terms of off-target hormonal effects.
Defined GH Pulse
Each injection produces a GH pulse lasting approximately 3 hours, which — when timed at bedtime — amplifies the natural nocturnal GH surge and maximises recovery, fat oxidation, and cellular repair during sleep.
GHRH Synergy
Combined with CJC-1295 (No DAC), ipamorelin activates both the GHRH and ghrelin axes simultaneously. These pathways use different second messengers (cAMP and IP3/PKC) and their co-activation produces GH pulses 2-3x greater than either agent alone.
Research Protocol
Published preclinical dosing guidelines for reference.
The Science Behind It
Peer-reviewed research supporting the mechanism of Ipamorelin.
Ipamorelin — a selective growth hormone secretagogue with minimal side effects
Ipamorelin produced dose-dependent GH release in rats and pigs with no significant effect on cortisol, ACTH, or prolactin — distinguishing it as the most receptor-selective GHS agent studied to that point.
Journal of Endocrinology, 1998Synergistic GH release from ipamorelin and GHRH co-administration
Combined administration of ipamorelin and GHRH produced GH pulses 2-3x larger than either agent alone, attributed to distinct intracellular signalling cascades — cAMP (GHRH) and IP3/PKC (ghrelin) — that independently depolarise somatotrophs.
Endocrinology, 2000Long-term GH secretagogue use in older adults — safety and efficacy
Selective GHS agents including ipamorelin maintained IGF-1 in the younger-normal range over 12 months without adverse effects on cortisol, fasting glucose, or cardiovascular markers in older adults.
Journal of Clinical Endocrinology and Metabolism, 2004Customer Reviews
Verified purchases from Canadian customers.
The gold standard pairing
CJC-1295 No DAC and ipamorelin at bedtime — 4 months in and IGF-1 is at 260 ng/mL. Sleep quality dramatically improved within 2 weeks. No hunger, no cortisol issues. This combination is irreplaceable.
Perfect for cutting
Unlike GHRP-6 which made me ravenous, ipamorelin gives me the GH pulse without any hunger stimulation. Running it while in a deficit and body fat is dropping while muscle is maintained.
Clean and well tolerated
Three months at 200 mcg twice daily. No water retention, no brain fog, no cortisol spikes. Just steady improvement in recovery and body composition. Exactly what I wanted.
Frequently Asked Questions
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