can you have b12 injection while pregnant Vitamin Injections: Benefits for Your Health Compounded Cyanocobalamin (Vitamin B12) Injection
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Some studies suggest it may even help prevent cognitive decline

Co-enzyme B12 also interacts with the enzyme methionine synthase (5-methyltetrahydrofolate-homocysteine methyltransferase), required for the conversion of homocysteine to methionine, which is essential for folic acid metabolism and the formation of thymine, which is a component of DNA

Vitamin B 12 fact sheet for health professionals

You want to inject right in that tent so the needle will be going into an air pocket between the skin and the muscle
