GHRP-2 (Growth Hormone Releasing Peptide -2) is a non-natural, commercially synthesized, super-analog of GHRP-6 which is competent enough to strongly stimulate effect on human growth hormone (HGH).
Mechano Growth Factor (MGF) is derived from exercised or damaged muscle tissue which is a growth factor or repair factor.
PT-141 or Bremelanotide is a research peptide being studied for its possible use in helping to improve sexual dysfunction in both men and women, used as erectile dysfunction solution.