Sermorelin vs Ipamorelin: Differences, Benefits, and Which Is Better? The most common GH releasing peptides: Ipamorelin A ghrelin receptor agonist that triggers short pulses of growth hormone release from the pituitary with minimal effects on cortisol, prolactin, or appetite. Tesamorelin Buy CJC 1295 No DAC (5mg) Ipamorelin (5mg) Blend Xcel Peptides Modified GRF 1 29 Peptide Sermorelin: A Modern Elixir to Enhance Growth Hormone Levels (GHRH)