b12 injections subcutaneous or im Instruction Guide for Intramuscular (IM) Self-injection of Methylcobalamin 1mg/5mg b12 injection subcutaneous vs.intramuscular Is
Description
(Elite Ed.) 2 , 13551361

Improve muscle recovery in physically active individuals

For higher concentrations, some protocols utilize a small percentage of DMSO or Ethanol before aqueous dilution
I didnt feel any difference
