How it works
It activates the ghrelin/GH-secretagogue receptor to release the body's own GH, and acts synergistically with GHRH analogues (why it's paired with things like CJC-1295). It also mildly stimulates appetite.
The evidence
It produces potent, reproducible GH release in studies, which is why it's been explored diagnostically. Evidence for anti-aging or body-composition goals in humans remains unconfirmed.
Safety
Effects track GH stimulation — water retention, tingling, appetite changes, and possible cortisol/prolactin effects at higher exposures. Long-term human safety is not established.
FAQ
Both are ghrelin-receptor GH secretagogues; ipamorelin is marketed as more selective (less cortisol/prolactin effect) than GHRP-2/6.
No — investigational; studied diagnostically but not an approved consumer medicine.
Sources
This profile summarizes the following. Follow the links to read the originals — and remember that summaries age, so check for newer information.
- Growth hormone-releasing peptides: historical evidence review (PMC)
- GHRP metabolites after nasal administration (PubMed)
Inclusion here is not endorsement of any source's claims; several are cited so you can compare how different outlets characterize the same evidence.
Reviewed by Remy — part of the PepConnection crew.