⚡ Research stack muscle

The GH Stack

CJC-1295 and Ipamorelin are the two most commonly combined growth hormone secretagogues in research. They work through different receptor pathways to produce additive GH release — GHRH and GHRP acting together for greater effect than either alone.

💪 CJC-1295 💪 Ipamorelin
What this stack is studied for
  • Synergistic growth hormone release
  • Clean GH stimulation — no cortisol spike
  • Sustained baseline + acute pulsatile GH profile
  • Muscle recovery and body composition support
  • Additive effect via separate receptor pathways
CJC-1295 Growth hormone
Ipamorelin Growth hormone
COA Purity certified vendors only
5 Markets covered

What is The GH Stack?

CJC-1295 + Ipamorelin — why combine them?

The GH Stack refers to the combination of CJC-1295 (a long-acting GHRH analogue) and Ipamorelin (a selective GHRP). Together they stimulate growth hormone release through two distinct but complementary pathways.

CJC-1295 with DAC has a half-life of 6-8 days, providing sustained GHRH receptor stimulation. Ipamorelin acts on ghrelin receptors (GHSR) to produce sharp, clean GH pulses. Combined, the two produce greater GH release than either compound alone.

Why combine them?

CJC-1295 stimulates GH release via GHRH receptors. Ipamorelin works through a completely separate pathway — ghrelin receptors. Because they use different mechanisms, combining them produces additive GH release without the compounds interfering with each other.

Plain English

What this means for you

If you are researching compounds for muscle development, body composition or recovery, CJC-1295 and Ipamorelin are the two most commonly studied GH secretagogues for this purpose.

CJC-1295 is the slow-acting foundation — it keeps GHRH receptor stimulation going for days at a time. Ipamorelin provides the acute pulse — a clean, sharp burst of GH without raising cortisol or prolactin the way older GHRPs do.

Together they give you both sustained background stimulation and acute pulsing — a more complete GH secretion profile than either alone.

The compounds

What's in this stack

CJC-1295💪
CJC-1295
Long-acting GHRH analogue that stimulates sustained growth hormone release
Reported benefits
Sustained growth hormone release for up to 6-8 days
Elevated IGF-1 levels supporting recovery
Improved lean body mass in research protocols
Enhanced fat metabolism via GH elevation
Full CJC-1295 research guide →
Ipamorelin💪
Ipamorelin
Selective ghrelin receptor agonist with clean GH release profile and minimal side effects
Reported benefits
Clean GH release without cortisol or prolactin elevation
Improved lean muscle development in research models
Enhanced recovery between training sessions
Better sleep quality reported in research contexts
Full Ipamorelin research guide →

Why they work together

Complementary mechanisms

01
Separate receptor pathways
CJC-1295 acts on GHRH receptors. Ipamorelin acts on ghrelin receptors (GHSR). Because they target different receptors, combining them produces additive rather than redundant GH stimulation.
02
Clean GH profile
Ipamorelin is highly selective — it raises GH without significantly elevating cortisol or prolactin. This makes the combination cleaner than older GHRP combinations like GHRP-6.
03
Sustained + pulsatile
CJC-1295 DAC provides days of background GHRH stimulation. Ipamorelin adds acute GH pulses on top. The combination produces a more physiological GH release pattern than either compound alone.

Source this stack

Where are you based?

Select your market to see COA-verified vendors for both compounds. We only list vendors with third-party purity certification.

🇦🇺 Australia — TGA
✓ Legal for research Both compounds unscheduled under TGA. Legal for research without a prescription.
💪 CJC-1295 COA verified

Available from verified vendors. Click to view options for your selected market.

View CJC-1295 vendors →
💪 Ipamorelin COA verified

Available from verified vendors. Click to view options for your selected market.

View Ipamorelin vendors →