giving b12 injections at home administer Safe Injection Guide B12 Shots at Home: NHS

Yoshino J, et al

In that case, you need to find out the cause with medical advice

I have sourced some methyl B12 from the UK and all the stuff I need to self inject, but am holding off until I get an actual diagnosis before starting

A Closer Look at B12 Injections for Athletic Performance Athletes and fitness enthusiasts can benefit significantly from having optimal vitamin B12 levels, as this nutrient plays several critical roles in physical performance and recovery

[5] It is speculated that Tesamorelin & Mod GRF may stimulate the production of cyclic adenosine monophosphate (cAMP) within the target cells

Prescription medications can also be ordered with a valid prescription, subject to applicable regulations