how long do b12 injections last Are Vitamin Shots Right for You? Best Vitamin B12 Injection Site:
Description
B12 is directly injected into a muscle, and absorbed into the bloodstream almost immediately

The frequency of your injections depends on your needs

In a 23-week trial, subjects taking 1mg daily lost an average of 2.8kg compared to 0.8kg for placebo

The frequency of Vitamin B12 injections depends on your individual health needs and the underlying reasons for supplementation
