b12 injections where on body Vitamin Injection Sites: All You Need to Know Best Vitamin B12 Injection Sites:
Description
Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA) may be used for certain services

Although rare, complications from a bad injection can kill your cat

Injectable vials: Indicated for severe cases with a dosage of 1 vial per day until symptoms begin to improve

Another theory is that the anaerobic bacteria responsible for developing Acne called Propionibacterium acnes feeds on Vit B12