(b) GHRP-2. Peptide Sciences, undated https://www.peptidesciences.com/ghrp-2
("a synthetic [ie, not found in nature] hexapeptide [made up of six amino acids] * * * It has a short half life with peak concentrations occurring around 15 minutes and not longer than 60 minutes after administration")
(i) Peptide Sciences is a chemical, not pharmaceutical, company.
(ii) Growth hormone, well known for promoting athletic strength, is itself banned. Because it is easy to detect growth hormone (or steroid for that matter), various chemicals have been tried to evade detection.