Growth Hormone Secretagogues

CJC-1295

Also known as: CJC-1295 without DAC · CJC-1295 with DAC · Modified GRF 1-29 · Mod GRF 1-29

The most popular GHRH analog for sustained GH elevation.

Half-Life
Without DAC: ~30 minutes. With DAC: 6–8 days.
Administration
Subcutaneous injection
Category
Growth Hormone Secretagogues
Citations
1 studies

What is CJC-1295?

CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH). It comes in two forms: CJC-1295 without DAC (also called Modified GRF 1-29) which produces a natural pulsatile GH release, and CJC-1295 with DAC which provides sustained GH elevation for days. The 'without DAC' version is preferred by most researchers for its more physiological action.

Mechanism of Action

CJC-1295 binds to GHRH receptors in the pituitary gland, stimulating the synthesis and release of growth hormone. The DAC (Drug Affinity Complex) version covalently binds to albumin in the bloodstream, extending its half-life from 30 minutes to 6–8 days. Without DAC, it produces a sharp GH pulse that mimics natural physiology.

CJC-1295 Dosing Protocol

CJC-1295 without DAC: 100–300 mcg per injection, 2–3 times daily, always stacked with Ipamorelin at the same dose/timing. CJC-1295 with DAC: 2 mg once or twice per week (standalone or with Ipamorelin). Cycle: 12–16 weeks.

Administration Routes
Subcutaneous injection
Half-Life
Without DAC: ~30 minutes. With DAC: 6–8 days.

Want a personalized protocol? Tell PepBot your goals, health status, and experience level for a custom CJC-1295 protocol.

CJC-1295 Benefits

Increased GH and IGF-1 levels
Improved body composition
Enhanced fat loss
Muscle gain and recovery
Improved sleep quality
Anti-aging effects
Bone density improvement

Side Effect Profile

Water retention (especially with DAC version), mild fatigue, tingling. With DAC: potential for sustained elevated GH which may cause joint discomfort. Generally well-tolerated.

CJC-1295 Stacking Guide

CJC-1295 works synergistically with these compounds. Click any to learn more, or ask PepBot to build you a complete stack.

Research & Citations

Frequently Asked Questions about CJC-1295

CJC-1295 with DAC vs without DAC — which is better?
Without DAC (Mod GRF 1-29) is preferred for most users because it produces natural pulsatile GH release when stacked with Ipamorelin. With DAC provides sustained GH elevation which can be useful for anti-aging protocols but may cause more water retention and blunted GH pulses over time.

Still have questions about CJC-1295?

PepBot has encyclopedic knowledge of CJC-1295 — dosing, stacking, interactions, latest research, and personalized protocols. Ask anything.