where to inject vitamin b12 Best Injection Site: Administering B12 Shots Vitamin B12 Injections for Energy

Taniki N, Nakamoto N, Chu PS, Mikami Y, Amiya T, Teratani T, Suzuki T, Tsukimi T, Fukuda S, Yamaguchi A, Shiba S, Miyake R, Katayama T, Ebinuma H, Kanai T (2018) Intestinal barrier regulates immune responses in the liver via IL-10-producing macrophages

Here is one example research week for the 10 mg vial at 150 mcg (45 units), dosed in the morning

This is called the concentration, and its always printed on your vial

10.1016/j.febslet.2009.03.038 101 OkamotoH.IshikawaA.YoshitakeY.KodamaN.NishimutaM.FukuwatariT.et al (2003)

Combining these approaches with 5-amino-1mq could theoretically produce enhanced effects on cellular energy and fat metabolism