where can vitamin b12 be injected Treating Severe Deficiency Best Vitamin B12 Injection Site:
Description
This normally heals without leaving any noticeable scars

What follows is what we know from that review and from the published clinical record

Multivitamin mineral supplementation in patients with chronic fatigue syndrome
It is available in the quantity of two (5 x 1ml)

A 200 mcg dose equals 8 units