It is an unapproved research chemical , not a medicine, and there are no completed human efficacy trials presented for research and educational use only
Neuroendocrine and sexual function studies examining MC4Rlinked pathways, arousal circuits, and hypothalamic signaling in preclinical models
Proc Natl Acad Sci USA 89:71897193 Hanuska A, Sznsi G, Albert M, Koles L, Varga A, Szabo A, Matyus P, Harsing LG (2016) Some operational characteristics of glycine release in rat retina: the role of reverse mode operation of glycine transporter type-1 (GlyT-1) in ischemic conditions
You can also check with local nutritionists or wellness centers to see if they carry collagen peptides or know of any stores that do
Why get a B12 injection instead of just taking an oral supplement
New Phytol 180:434441 Talukdar D (2013)Arsenic-induced oxidative stress in the common bean legume, Phaseolus vulgaris L