US$ 22.86
glutathione iv dose Detox: Is It Right? How Often Can You Get
Description
By boosting energy and aiding red blood cell production, B12 injections might enhance endurance and performance in athletes

In short: You should be extremely cautious

B12 is a necessary component of the Krebs Cycle, the series of chemical reactions that generate ATP

Biofactors 45 (3), 471478
Functional recovery in Parkinsonian monkeys treated with GDNF

Your structured experimentation is spot on
