Peptide Blends

CJC-1295 & GHRP-2 Blend

A potent research blend pairing CJC-1295 (Mod GRF 1-29) with GHRP-2 for strong synergistic GH release with good GH-axis selectivity.

C152H252N44O42S / C45H55N9O6Half-life: CJC-1295: ~30-60 min; GHRP-2: ~1 hour

⚠ Research & Educational Use Only. CJC-1295 & GHRP-2 Blend is a research chemical documented here for scientific education. All information references peer-reviewed literature and preclinical/clinical study data. Not for human consumption. Not medical advice. Consult a licensed researcher or healthcare professional before any laboratory use.

Medically reviewed by Dr. Amanda Reid, MDWritten by the KnowYourPeptide Research TeamLast updated April 2026
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Key Takeaways
  • Strong GH pulse amplitude (3-5x each peptide alone)
  • Good GH selectivity (less cortisol elevation than GHRP-6)
  • Potent IGF-1 elevation for body composition research
  • CJC-1295 & GHRP-2 Blend is not FDA-approved for human use. It is a research chemical for scientific study only.

Research At a Glance

  • Strong GH pulse amplitude (3-5x each peptide alone)
  • Good GH selectivity (less cortisol elevation than GHRP-6)
  • Potent IGF-1 elevation for body composition research
  • Well-characterized in human pharmacokinetic studies

What is CJC-1295 & GHRP-2 Blend?

CJC-1295 & GHRP-2 Blend combines CJC-1295 (no DAC / Mod GRF 1-29) with GHRP-2, a potent GHS-R1a agonist with excellent GH-stimulating efficacy. GHRP-2 produces stronger GH pulses than ipamorelin at equivalent doses but with modestly higher cortisol and prolactin elevation.

What It Is

  • CJC-1295 (no DAC): GHRH analogue for GHRHR stimulation
  • GHRP-2: potent GHS-R1a agonist; high GH output with moderate cortisol/prolactin side effect profile
  • Selected when maximum GH amplitude is the research goal and clean selectivity (ipamorelin) is secondary

How It Works

  • Standard GHRH + GHRP dual-receptor mechanism
  • GHRP-2's higher GHS-R1a binding affinity vs ipamorelin produces somewhat larger GH peaks
  • Combined GH amplitude: 3-5x either peptide alone

Key Research Findings

  • GH peaks of 40-60 ng/mL in responsive individuals at standard doses
  • IGF-1 elevation: 60-80% above baseline at 3 months
  • Cortisol: transient 20-25% elevation above baseline at peak GHRP-2 concentration; normalizes within 3 hours

Dosing From the Literature

  • CJC-1295 (no DAC) 100-200 mcg + GHRP-2 100-200 mcg per injection
  • Twice daily; keep GHRP-2 below 250 mcg per injection

Storage and Handling

  • Lyophilised: 2-8 degrees C; 24 months
  • Reconstituted: 2-8 degrees C; use within 30 days

Key Research Benefits

Documented effects observed in preclinical and clinical studies on CJC-1295 & GHRP-2 Blend. See all Peptide Blends peptides for comparison.

Strong GH pulse amplitude (3-5x each peptide alone)
Good GH selectivity (less cortisol elevation than GHRP-6)
Potent IGF-1 elevation for body composition research
Well-characterized in human pharmacokinetic studies

Side Effects & Risks

Adverse effects reported in the research literature. All data sourced from preclinical and clinical study reports.

Moderate cortisol/prolactin elevation from GHRP-2
Injection site reactions
Water retention at high doses

Dosing Data from the Literature

Doses referenced below are sourced from published preclinical and clinical studies. Use the peptide dose calculator to convert these values to injection volume.

Research Dosing Protocol

CJC-1295 (no DAC) 100-200 mcg + GHRP-2 100-200 mcg per injection. Twice daily.

Enter your vial size and target dose to get the exact injection volume.

Administration in Research Settings

Standard reconstitution and administration methodology for laboratory research use.

Subcutaneous injection on empty stomach.

Explore Further

Quick Reference

Half-Life
CJC-1295: ~30-60 min; GHRP-2: ~1 hour
Formula
C152H252N44O42S / C45H55N9O6
Legal Status
Research chemicals. Not approved for human use.
Storage
Lyophilised: 2-8 degrees C. Reconstituted: 2-8 degrees C; use within 30 days.

Research Use Only

This information is for educational research purposes only. This is not medical advice. Consult a qualified healthcare professional.

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