It's a nonapeptide found in various tissues
Elsevier, Amsterdam, pp 758767 Greig NH, Utsuki T, Ingram DK, Wang Y, Pepeu G, Scali C, Yu QS, Mamczarz J, Holloway HW, Giordano T, Chen D, Furukawa K, Sambamurti K, Brossi A, Lahiri DK (2005) Selective butyrylcholinesterase inhibition elevates brain acetylcholine, augments learning and lowers Alzheimer beta-amyloid peptide in rodent
Peptide bond formation requires amino acid with an amino group (NH2) at the N-terminal, a carboxyl group (COOH) at the C-terminal, and a unique side chain (R)
They have minimal toxicity and few documented side effects, making them a safe and effective solution for addressing Vitamin B12 deficiency symptoms
De Raedt T, Beert E, Pasmant E, Luscan A, Brems H, Ortonne N, et al
Roles of the gut in glucose homeostasis