Understanding the Ipamorelin + CJC-1295 Stack
The combination of Ipamorelin and CJC-1295 represents one of the most studied peptide stacks for growth hormone (GH) research. By combining a growth hormone releasing peptide (GHRP) with a growth hormone releasing hormone (GHRH) analog, researchers can examine synergistic effects on the GH axis.
This stack exploits two distinct pathways: Ipamorelin initiates GH pulses through the ghrelin receptor, while CJC-1295 amplifies these pulses through the GHRH receptor. The result is potentially greater and more physiological GH release than either peptide alone.
How the Stack Works
Two Distinct Pathways
Ipamorelin (GHRP):
CJC-1295 (GHRH analog):
Synergy Mechanism
When combined:
This mimics natural physiology where ghrelin and GHRH work together.
Component Profiles
Ipamorelin
| Property | Details |
|---|---|
| Type | Growth Hormone Releasing Peptide |
| Receptor | Ghrelin receptor (GHS-R1a) |
| Amino Acids | 5 (pentapeptide) |
| Selectivity | High (GH-specific) |
| Cortisol Effect | Minimal |
| Prolactin Effect | Minimal |
| Appetite Effect | Minimal |
Why Ipamorelin?
See our GHRP-6 guide for GHRP comparison.
CJC-1295 Variants
CJC-1295 with DAC:
| Property | Details |
|---|---|
| Full Name | CJC-1295 with Drug Affinity Complex |
| Type | GHRH analog |
| Half-life | 6-8 days |
| Mechanism | Albumin binding extends duration |
| GH Release | Sustained elevation |
| Dosing | Less frequent (weekly) |
CJC-1295 without DAC (Mod GRF 1-29):
| Property | Details |
|---|---|
| Full Name | Modified GRF 1-29 |
| Type | GHRH analog |
| Half-life | ~30 minutes |
| GH Release | Pulsatile, physiological |
| Dosing | Multiple times daily |
| Pattern | Mimics natural GHRH |
Which CJC-1295 to Choose?
With DAC:
Without DAC (Mod GRF 1-29):
Research Applications
Growth Hormone Studies
GH Axis Research:
Metabolic Research:
Comparative Studies
Peptide Comparisons:
Age-Related Research:
Dosing Protocols in Research
Reconstitution
Ipamorelin:
| Vial Size | BAC Water | Concentration |
|---|---|---|
| 2mg | 2ml | 1mg/ml |
| 5mg | 2.5ml | 2mg/ml |
CJC-1295 (either variant):
| Vial Size | BAC Water | Concentration |
|---|---|---|
| 2mg | 2ml | 1mg/ml |
| 5mg | 2.5ml | 2mg/ml |
Use our peptide calculator for precise measurements.
CJC-1295 + Ipamorelin
5mg each • 99%+ Purity
$54.99
In Stock
Stack Timing
With DAC (CJC-1295 DAC):
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Without DAC (Mod GRF 1-29):
Research Dosing Ranges
Literature References:
Specific protocols should follow institutional guidelines.
GH Response Optimization
Factors Enhancing Response
Timing:
Lifestyle:
Physiological:
Factors Blunting Response
Avoid:
Stack Comparisons
Ipamorelin/CJC-1295 vs Single Peptides
| Protocol | GH Release | Convenience | Physiological |
|---|---|---|---|
| Ipamorelin alone | Moderate | High | Yes |
| CJC-1295 alone | Moderate | High | Moderate |
| Combination | High | Moderate | Yes |
vs Other GH Peptides
| Stack/Peptide | Strength | Selectivity | Side Effects |
|---|---|---|---|
| Ipamorelin + CJC | High | Excellent | Minimal |
| GHRP-6 + CJC | Very High | Moderate | Appetite, cortisol |
| GHRP-2 + CJC | Very High | Low | Cortisol, prolactin |
| Ipamorelin alone | Moderate | Excellent | Minimal |
Storage Guidelines
Lyophilized (Both Peptides)
Reconstituted
See our storage guide.
Safety Profile
Research Observations
Ipamorelin:
CJC-1295:
Stack Considerations
Frequently Asked Questions
Why combine Ipamorelin with CJC-1295?
They work through different receptors and pathways. Ipamorelin initiates GH pulses via the ghrelin receptor while CJC-1295 amplifies pulses via the GHRH receptor. Combined, they produce synergistic GH release mimicking natural physiology.
Should I use CJC-1295 with or without DAC?
Without DAC (Mod GRF 1-29) provides more physiological pulsatile release and preserves natural GH rhythm. With DAC provides sustained elevation and less frequent dosing. Most researchers prefer without DAC for physiological studies.
Why choose Ipamorelin over GHRP-6 or GHRP-2?
Ipamorelin is the most selective GHRP, causing GH release without significantly affecting cortisol, prolactin, or appetite. GHRP-6 causes strong hunger; GHRP-2 elevates cortisol and prolactin. For cleaner GH studies, Ipamorelin is preferred.
What is the best time to administer the stack?
Fasted conditions produce the best GH response—typically first thing in the morning before breakfast or at bedtime. Avoid administration within 2 hours of eating, especially high-fat or high-carbohydrate meals.
How long until effects are observed?
GH elevation occurs within 15-30 minutes of administration. Downstream effects (IGF-1 elevation, body composition changes) develop over weeks in research settings. Acute GH response is immediate.
Can this stack be used with other peptides?
Research has examined various combinations. The Ipamorelin/CJC-1295 stack is often considered foundational for GH research. Additional peptides depend on specific research goals. Consult relevant literature.
Related Resources
Conclusion
The Ipamorelin and CJC-1295 combination remains a gold standard for growth hormone research due to its synergistic mechanism, excellent selectivity, and minimal side effects. By engaging both arms of the GH-releasing pathway, researchers can achieve robust, physiological GH secretion.
Whether studying GH physiology, age-related decline, or metabolic effects, this stack provides a well-characterized tool with extensive literature support.
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This article is for informational purposes only. These peptides are sold for research purposes and are not intended for human consumption. All research should be conducted in accordance with applicable regulations.
