Source comparison
GHRP-2 vs GHRP-6: GH Release Potency
In the GHRP-2 vs GHRP-6 comparison, GH potency favors GHRP-2. The Arvat et al. (1997) pharmacological characterization study — the definitive head-to-head comparison of the GHRP class — established GHRP-2 as the most potent GH secretagogue among standard GHRPs
This comparison does not assign a generated winner or score.
- In the GHRP-2 vs GHRP-6 comparison, GH potency favors GHRP-2. The Arvat et al. (1997) pharmacological characterization study — the definitive head-to-head comparison of the GHRP class — established GHRP-2 as the most potent GH secretagogue among standard GHRPs. Published data documents peak GH concentrations of approximately 40-60 ng/mL for GHRP-2 versus 25-40 ng/mL for GHRP-6 at equivalent doses. However, as multiple research groups note, the practical GH difference between GHRP-2 vs GHRP-6 is not the primary deciding factor — both produce robust GH pulses that drive significant IGF-1 elevation.