can you get a b12 injection in your back Vitamin Shot Best Vitamin B12 Injection Sites:

Although the marketing machines behind these products claim Spirulina has ample B12, these plants actually contain fake B12, which can test as B12 in some labs.t Additional research has shown these are false positives, and the actual B12 count is very low

Comprehensive laboratory monitoring showed no clinically significant changes in hematology, biochemistry, or urinalysis parameters

Overdosing on vitamin B12 supplements is usually not something you need to worry about

Within 48 hours after injection of 100 or 1000 mcg of vitamin B 12, 50 to 98% of the injected dose may appear in the urine

However, as we age, NAD+ levels decline, leading to fatigue, brain fog, and slower recovery

That doesnt mean its not possible though