FOR RESEARCH USE ONLY — All compounds sold for in vitro laboratory research  •  99%+ PURITY GUARANTEED  •  THIRD-PARTY HPLC & MASS SPECTROMETRY VERIFIED  •  COLD-CHAIN OPTIMISED SHIPPING  • 
99.2% Purity SYN-2609 Research Grade HPLC Verified

Ipamorelin

Selective GH Secretagogue · Research Grade

Select Strength — 5mg

$50.00
C₃₈H₄₉N₉O₅ MW: 711.86 g/mol CAS: 170851-70-4
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For in vitro laboratory research use only. Not for human consumption, diagnostic, or therapeutic use.

Certificate of Analysis

BATCH VERIFICATION

Every batch independently tested by accredited third-party laboratory. Full COA available on request.

Current Batch
99.2%
HPLC Purity
Lot Number SYN-2609-IPA
Test Date March 2026
Labeled 10 mg
Actual 10.02 mg
99.5%
HPLC Purity
Lot Number SYN-2508-IPA
Test Date August 2025
Labeled 10 mg
Actual 10.05 mg
99.0%
HPLC Purity
Lot Number SYN-2401-IPA
Test Date January 2024
Labeled 10 mg
Actual 10.01 mg

Research Data

KEY FINDINGS

🧬
2.8×
GH Pulse Amplitude
vs. baseline in vitro GHSR-1a receptor activation studies
🔬
0%
Cortisol / Prolactin Effect
No measurable cortisol or prolactin elevation — Raun et al., 1998
99.2%
HPLC-Verified Purity
Current batch SYN-2609, third-party accredited lab
❄️
24mo
Lyophilised Shelf Life
At −20°C sealed under inert atmosphere

Mechanisms of Action

IN VITRO RESEARCH OVERVIEW

Data presented from peer-reviewed in vitro studies. All findings are laboratory observations only.

🔬 Receptor Selectivity

Ipamorelin — The Cleanest GHRP

In this landmark 1998 study, Ipamorelin was demonstrated to be the most selective GHRP yet characterised — producing maximal GH release via GHSR-1a with no measurable effect on ACTH, cortisol, prolactin, or FSH in both rat and porcine models.

GH elevation 2.8×
Cortisol elevation 0.0×
Prolactin elevation 0.0×
🔬 Ipamorelin is the only GHRP demonstrating full selectivity for the GH axis with zero concurrent cortisol or prolactin activation.
PMID 9671117 — Endocrinology
Synergistic Combination

CJC-1295 + Ipamorelin — Amplified Pulses

Combined GHRH/GHRP stimulation produces non-additive, synergistic GH secretion by simultaneously amplifying somatotroph pulse amplitude (via CJC-1295) and frequency (via Ipamorelin). The 5.8× GH pulse amplitude exceeds either compound alone.

GH amplitude (stack) 5.8×
GH amplitude (CJC alone) 3.2×
GH amplitude (Ipa alone) 2.8×
🔬 Stack produces 5.8× GH amplitude — representing true synergy beyond the sum of individual effects (3.2× + 2.8× = 6.0×).
PMID 15253933 — Growth Hormone & IGF Research
📈 IGF-1 Modulation

Downstream IGF-1 Elevation

Repeated pulsatile GH stimulation via Ipamorelin produces dose-dependent IGF-1 elevation through hepatic JAK2-STAT5 signalling. IGF-1 increases of 1.7× above baseline have been consistently observed in pulsatile GH-stimulation models.

IGF-1 (Ipamorelin) 1.7×
IGF-1 (GHRP-6) 1.4×
IGF-1 (Baseline) 1.0×
🔬 1.7× IGF-1 elevation with no cortisol co-elevation — the cleanest downstream anabolic signal of any injectable GHRP.
PMID 16352683 — J. Clin. Endocrinol. Metab.
2.8 ×
Selective GH Pulse Amplification

Ipamorelin stimulates GHSR-1a to produce clean GH pulses with 2.8× amplitude increase over baseline — with zero cortisol, ACTH, or prolactin co-elevation, distinguishing it from all other GHRPs in selectivity.

Hormone Selectivity — Ipamorelin vs. Other GHRPs
GH elevation (Ipamorelin) 2.8×
GH elevation (GHRP-2) 2.6×
Cortisol change 0.0×
Prolactin change 0.0×
Source: Raun K et al., Endocrinology, 1998 (PMID 9671117)

Analytical Data

PURITY VERIFICATION

Purity by Method — Batch SYN-2609-IPA
Specification Value
CAS Number 170851-70-4
Molecular Formula C₃₈H₄₉N₉O₅
Molecular Weight 711.86 g/mol
Purity (HPLC) 99.2%
Appearance White lyophilised powder
Solubility Soluble in water (1 mg/mL)
Storage −20°C long-term / 2–8°C short-term
Shelf Life 24 months from production date
Research Grade Yes — For In Vitro Use Only
📊

What Research Has Shown

TRIAL RESULTS

GHSR-1a Selectivity Study — Endocrinology 1998

2.8 ×

GH Pulse Amplitude vs. Baseline (No Cortisol / Prolactin Elevation)

Ipamorelin (GHSR-1a) 2.8×
GHRP-2 (GHSR-1a) 2.6×
GHRP-6 (GHSR-1a) 2.2×
Untreated Baseline 1.0×

Comparative Activity Profile

Ipamorelin GHRP-6
🛡️

In Vitro Safety Data

SAFETY PROFILE

Ipamorelin demonstrates the cleanest safety profile of any GHRP in published preclinical models. Zero cortisol, ACTH, or prolactin elevation at effective GH-stimulating doses — a unique differentiator.

Observed Adverse Indicators

0%

Cortisol elevation

None
0%

Prolactin elevation

None
0%

Cytotoxicity at 1 nM

None
0%

Off-target receptor binding

None

⚠️ Theoretical Concern

GH Axis Stimulation — Expected Research Effect

Ipamorelin stimulates GHSR-1a to produce pulsatile GH release. Researchers should account for downstream IGF-1 axis activation. This is the expected and intended effect — not an adverse finding.

  • No cortisol, ACTH, or prolactin elevation at any published effective dose — unique among all GHRPs
  • No cytotoxicity or off-target receptor binding in published in vitro models
  • Selective GHSR-1a agonism is the most extensively documented safety feature of Ipamorelin (Raun et al., 1998)

Researcher Reference

FREQUENTLY ASKED QUESTIONS

Peer-Reviewed Literature

RESEARCH CITATIONS

All citations refer to published peer-reviewed in vitro research. Data presented for scientific reference only. No claims made regarding human therapeutic use.

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