Studies suggest this approach can achieve tissue concentrations approaching injectable levels
doi: 10.1089/ars.2011.4198
There are practical reasons too: B can be unstable if mixed with certain other vitamins in solution, and dosing schedules for B deficiency (pernicious anemia, for instance) may differ
The key point: a safe peptide plan should be personal, not copied from the internet
Ann Endocrinol (Paris) 72:485495 Baldelli R, De Marinis L, Bianchi A, Pivonello R, Gasco V, Auriemma R, Pasimeni G, Cimino V, Appetecchia M, Maccario M, Lombardi G, Pontecorvi A, Colao A, Grottoli S (2008) Microalbuminuria in insulin sensitivity in patients with growth hormone-secreting pituitary tumor
MARK GORDON ABOUT THE SCIENCE OF HUMAN GROWTH HORMONE (HGH) SECRETAGOGUE TECHNOLOGY