Immune cells circulate around the body 24/7
The 12.5 mg pen is blue
Key Preclinical Study (Neelakantan et al., 2018): Treatment in diet-induced obese mice produced progressive body weight loss, reduced white adipose tissue mass and adipocyte size, decreased total cholesterol, and no changes in food intake effects were metabolic, not appetite-driven
With a non existent B12 I am not surprised you feel so awful its going to take time to heal
In all cases, the safest course is to discard the vial
NAD+ is a critical coenzyme involved in hundreds of enzymatic reactions including glycolysis, the citric acid cycle, and oxidative phosphorylation, as well as serving as a substrate for NAD+-consuming enzymes including sirtuins, PARPs, and CD38