vitamin b12 injections uk muscle | Energy Boost | Healthy Hair & Skin Vitamin B12 10X 1ml 1500mcg

B 29 AQ 1500MCG PREFILLED SYRINGE(PFS) is not recommended for use in patients allergic to mecobalamin and/or other B12 containing medicines

Abdul-Rahim HF, Husseini A, Bjertness E, Giacaman R, Gordon NH, Jervell J

Sources NIH: Vitamin B 12 Status and Optimal Range for Hemoglobin Formation in Elite Athletes Inside Tracker: Vitamin B12 Absorption and Mature Athletes Healthspan Elite: Vitamin B, vitamin B12 guide for athletes: foods and deficiency Cambridge University Press: The effect of vitamin B12 on physical performance capacity

It is especially useful where oral intake is insufficient or absorption is compromised, as noted in the product literature