Ipamorelin (2mg): The Growth Hormone Peptide For Recovery, Performance, And Longevity Ipamorelin and CJC 1295 are almost always discussed together in research circles, and the reason comes down to receptor pharmacology. The two peptides work through entirely different but complementary mechanisms that produce a GHRH vs GHRP Growth Hormone Research Differences PRG Ipamorelin is a potent growth hormone releasing peptide that has some potential advantages over some of the others. Although peptides seem to be doled out like aspirin, keep in mind that these are