b12 injection half-life Shots Dosage for Adults: How Much and How Often it’s possible you have a B12 deficiency CYANOCOBALAMIN INJECTION, USP

In preclinical settings it is commonly used to explore fat-mobilisation pathways and weight-management concepts without the full growth hormone sequence

Hj LJ, Rasmussen BS, Dalsgaard PW, Linnet K

Those most at risk include vegans and vegetarians, people with digestive conditions such as Crohn's disease, coeliac disease or IBS, those taking long-term metformin or proton pump inhibitors, older adults whose ability to absorb B12 through the gut declines naturally with age, those with pernicious anaemia, and anyone with a history of chronic alcohol use

This is when dosing and frequency are adjusted

You are going to have to give yourself three injections for the full dose of B12