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It is administered by subcutaneous or intramuscular injection (often into the gluteal muscle) on a regimen determined by the treating physician to maintain physiologic testosterone levels

This matters because many adults with low B12, whether from dietary restriction, aging, or conditions like pernicious anemia, cannot absorb enough B12 through food or oral supplements alone

We love a no-nonsense woman who tells it how it is, so we asked Dr MJ if we could share her reviews of some of the wild and wacky (and some not so crazy) cosmetic treatments offered across the UK to help you decide on what's right, and also what's very very wrong, for you

Rotate injection sites systematically

Another option is to start taking B12 supplements, which usually have megadoses of the vitamin