GHRP-6 and GHRP-2






A quick schooling on GHRP-6 and GHRP-2


In 1980 the first highly potent GH-Releasing peptide was developed and named*GHRP-6. This peptide was found to illicit a strong*GH*release response and so became the first member of a class of growth hormone releasing peptides more broadly called*GH*secretagogues. Structurally*GHRP-6*is composed of the amino acids L-Histidine, D-Tryptophan, L-Alanine, L-Tryptophan, D-Phenylalanine and L-Lysine. The “L” form of an amino acid is the naturally occurring form and often in the nomenclature the “L” is dropped. The “D” form does not occur in nature and is the isomeric form (i.e. mirror image) of the naturally occurring “L” form.
GHRP-6*is composed of both natural and isomeric forms of those aforementioned six amino acids. Its structure is represented as:
His-D-Trp-Ala-Trp-D-Phe-Lys-NH2
Investigators subsequently modified the structure of*GHRP-6*and identified more potent peptides. For example.....


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