Epitalon Preparation Prof Khavinson (Saint Petersburg, Russia) kindly provided the tested peptide Epitalon, which was dissolved in water at a stock concentration of 100 g/mL, then further diluted to prepare the three concentrations for testing (20, 40, and 60 ng/mL)
Experiments conducted using a polyacrylamide-based microchannel device that allows independent control of substrate stiffness and channel dimensions revealed that optimal migration of triple-negative MDA-MB-231 and SUM159 human breast cancer cells occurs at intermediate stiffness [90]
;4(24) Clemmensen C, Smajilovic S, Smith EP, Woods SC, Brauner-Osborne H, Seeley RJ et al (2013) Oral L-arginine stimulates GLP-1 secretion to improve glucose tolerance in male mice
But you can get it from fortified plant milks, breakfast cereals, and other foods (check the labels to make sure B12 is included)