US$ 28.06
how to bill vitamin b12 injection Sublingual vs. B12 Injections: Which Option Is Right for You? – WhyNotNatural Vitamin B12 Injection Dosage for
Description
And this was a real, NHS, doctor

Many people feel a difference within days, including better energy, improved mood, clearer thinking, or generally feeling more like themselves

They also help prevent or reverse symptoms such as fatigue, low energy levels, and weight loss, which are commonly linked to vitamin B12 deficiency
Bisanz, J

PMID 28627191