what is best b12 injection or tablets Vitamin B-12 Injections Vs Oral Pills: Expert Insights Compounded Cyanocobalamin (Vitamin B12) Injection

Vitamin B12 is water-soluble

They also boost your mood and help with depression

Best time of day Injectable: Morning administration aligns with natural cortisol rhythms and allows any mild side effects to resolve before sleep

The beyond use date for an opened or entered (e.g., needle punctured) multiple-dose container with antimicrobial preservatives is 28 days, unless otherwise specified by the manufacturer

Mechanistically they do not overlap (GLP-1 agonists work through appetite and gastric emptying, this works on adipocyte lipogenesis and NAD+), and the mouse data specifically showed fat loss without reduced food intake, so they are not redundant