what is the purpose of a vitamin b12 injection Are Benefits Injections? Best Vitamin B12 Injection Site:
Description
Herpes simplex type 1 (HSV), varicella-zoster-virus (VZV), measles virus, and Borrelia antibodies were negative

If were not just talking about age-related changes - perhaps youve lost weight and thats caused your cheeks to prematurely deflate, or you want to tweak your natural cheeks and change their contour - in that case, fillers can be used as early as age 16 (though usually in minors theyre reserved for reconstructive work)
Untreated vitamin B12 deficiency can gradually damage the nervous system and reduce healthy red blood cell production

When taking B12 via injections or high doses of supplements, it bypasses the absorption limits of dietary B12, leading to a temporary rise in blood B12 levels

Hydroxocobalamin | Drugs BNF NICE

Most protocols recommend a 2 to 4 week break between cycles