IV is intravenous, and it's most commonly available in drip bars and other wellness clinics
(PubMed) Poly C, Massaro JM, Seshadri S, et al
With that in mind here are the injection sites you can use on your body for B12 shots: Mid-thigh (right into your quadriceps): This is the preferred site if you are self-injecting
Micromachines 14(5):1017 Trenz TS, Delaix CL, Turchetto-Zolet AC, Zamocky M, Lazzarotto F, Margis-Pinheiro M (2021) going forward and back: the complex evolutionary history of the gpx
CD36 facilitates fatty acid uptake by dynamic palmitoylation-regulated endocytosis
If you stop taking Glutathione tablets, you may notice an apparent change in skin tone and texture