TB-500 corresponds to a synthetic segment of thymosin beta-4, a peptide involved in cytoskeletal dynamics and cell motility
doi: 10.1093/jnci/52.2.413
This has driven many of them to source B12 injections from overseas and self-administer without their GPs knowledge or guidance, research shows
The vitamin is delivered into the fat layer just under the skin, often in the abdomen or thigh
O'Leary OE, Canning P, Reid E, Bertelli PM, McKeown S, Brines M, Cerami A, Du X, Xu H, Chen M, Dutton L, Brazil DP, Medina RJ, Stitt AW
The peptide is considered a non-approved compound that may enhance performance or recovery, making it restricted for athletes