Cornu M, Yang JY, Jaccard E, Poussin C, Widmann C, Thorens B
Tesamorelin, a related GHRH analog, is the only FDA-approved peptide in this family, indicated for a specific HIV-related condition
In both GLUTag cells and L-cells (Fig
Choose GHRP-2 if: You want GH stimulation without intense hunger GHRP-2's milder appetite effect makes it more practical for those who don't want to deal with powerful hunger surges You're combining with a GHRH analog Both peptides synergize equally well with CJC-1295 or Sermorelin, but GHRP-2's lower appetite impact makes the combination more comfortable You're lean and trying to stay lean Intense hunger can sabotage body composition goals You want the most studied diagnostic variant GHRP-2 has more clinical validation as a pituitary function test Choose GHRP-6 if: Appetite stimulation is a feature, not a bug Recovery from illness, post-surgery, cachexia, or deliberate caloric surplus goals benefit from GHRP-6's orexigenic effect You're interested in cytoprotective applications GHRP-6 has a more extensive literature on cardioprotection, neuroprotection, and tissue protection (GHRP-6 cardioprotection, 2024) You're underweight or struggling to eat enough The appetite boost can be therapeutic You want the historical "first" GHRP GHRP-6 has the longest research track record in the family Choose Neither (Consider Alternatives) if: You want minimal side effects Ipamorelin (most selective GHSR-1a agonist) You want maximum GH potency Hexarelin (strongest GHRP, but highest cortisol/prolactin)
