Understand the source comparison
Hexarelin Compare to Research Peptides: Full Comparison
Hexarelin 15–25 GHS-R1a (moderate selectivity—also activates central receptors) High (40–60% increase) Rapid (14–28 days continuous use) Acute GH pulse studies, neuroprotective models, cardiovascular signaling research Most potent GHRP available—use for short-
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Hexarelin
- 15–25
- GHS-R1a (moderate selectivity—also activates central receptors)
- High (40–60% increase)
- Rapid (14–28 days continuous use)
- Acute GH pulse studies, neuroprotective models, cardiovascular signaling research
- Most potent GHRP available—use for short-duration protocols where maximum GH amplitude is the priority, avoid for chronic metabolic studies due to cortisol interference
- GHRP-2
- 10–15
- GHS-R1a (moderate selectivity)
- Moderate (20–30% increase)
- Moderate (28–42 days)
- Balanced GH research, combination with CJC-1295, moderate-duration studies
- Best middle-ground option—strong GH output without hexarelin's severe desensitization, manageable cortisol profile for most protocols
- Ipamorelin
- 8–12
- GHS-R1a (high selectivity—minimal off-target binding)
- Minimal (<10% increase)
- Slow (56+ days)
- Chronic GH elevation studies, metabolic research, protocols requiring repeatable dosing
- Lowest potency but highest repeatability—ideal when isolating GH-specific effects without cortisol, prolactin, or appetite confounds
- GHRP-6
- GHS-R1a (low selectivity—strong ghrelin pathway activation)
- Moderate (25–35% increase)
- Appetite research, early GH secretagogue studies
- Largely replaced by GHRP-2 and ipamorelin—retained only when appetite stimulation is an intentional research endpoint
- CJC-1295 (DAC)
- N/A—amplifies endogenous pulses
- GHRH receptor (completely different pathway)
- None (GHRH-mediated)
- None (mechanism is amplification, not direct stimulation)
- Sustained GH elevation, circadian rhythm studies, synergistic protocols with GHRPs
- Not directly comparable—works through GHRH amplification rather than ghrelin pathway, best used in combination with a GHRP to initiate pulses