peptide
CJC-1295 (no DAC) / Mod GRF 1-29
moderateResearch Use OnlyInjection
Shorter-acting GH booster that releases growth hormone in natural pulses. Clears faster without DAC, so it's usually paired with another GH peptide for stronger effect.
Key facts
- Classification
- Modified GRF (1-29), a truncated GHRH analog with substitutions at positions 2, 8, 15, and 27 for enhanced receptor affinity and DPP-IV resistance.
- Primary benefits
- Muscle Growth (7/10) · Fat Loss (6/10) · Longevity (4/10)
- Administration
- Injection
- Doses studied
- 100 mcg subq 2-3 times daily, ideally paired with a GH-releasing peptide like Ipamorelin. Cycle for 8-12 weeks.
- Evidence strength
- Moderate — 15 peer-reviewed studies
- Stacks well with
- Ipamorelin, GHRP-6, GHRP-2
- Legal status
- Research Use Only · not prescribable in US · WADA prohibited
Quick stats
- Type
- Peptide
- Administration
- Injection
- Studies referenced
- 15
- Stacks with
- 3 peptides
- Regulatory
- Research Use Only
Scientific overview
Modified GRF (1-29), a truncated GHRH analog with substitutions at positions 2, 8, 15, and 27 for enhanced receptor affinity and DPP-IV resistance. ~30-minute half-life produces acute GH pulses mimicking physiological secretion. Often combined with Ipamorelin for synergistic pituitary stimulation.
Goal coverage · CJC-1295 (no DAC) / Mod GRF 1-29
💪 Muscle Growth7/10
🔥 Fat Loss6/10
⏳ Longevity4/10
😴 Sleep4/10
🩹 Injury Healing3/10
Medical oversight strongly recommendedNot safe during pregnancy· 4 contraindications