where do you inject b12 in the thigh How I perform a glute Injection (Intramuscular Injection) Best Vitamin B12 Injection Sites:
Description
The procedure usually takes 1015 minutes, and youll be free to go home shortly afterward

Cohens d was 0.07 for IM vs SL routes, 0.06 for oral vs IM routes, and 0.22 for oral vs SL routes

Using their website is pretty straightforward and easy

These cells cannot multiply properly without vitamin B-12
