Biochemical Pharmacology
Echoing the scientific literature, they write of ipamorelin that we lack sufficient information to know whether the drug would cause harm if administered to humans via [injection]. The peptide pralmorelin (or GHRP-2) is clinically approved in Japan, but only as a way to diagnose adults who are deficient in growth hormone
Similar to insulin, there are human-created, synthetic peptides that can be used to treat certain deficiencies or medical conditions
However, it is important to understand that 24 weeks, while substantial for clinical trials, provides limited information about safety with years-long continuous use
Combining vitamin B12 with lipotropic compounds, these injections have gained popularity in weight loss circles
He frames it as triggering collagen production, repairing tissue, and helping regrow thinning hair (source)