b12 injections absorb into plastic How Long Does A Vitamin Shot Last VITAMIN B COMPLEX. ONE INJECTION.

B12 is added to certain foods, such as fortified fruit juices and breakfast cereals

So, AOD 9604 should be viewed as a tool for studying metabolism, not as a weight loss treatment

Anything below 0.25mg has not been studied in rigorous trials for weight management outcomes

There are other alternative forms for B-12 administration which includes monthly intramuscular injection, sublingual (under the tongue) liquids or sprays, or nasal spray which more adequately enable absorption. (Source) The current ASMBS recommendations for VSG (which are summarized here) list a B-complex vitamin (which includes B-12) as optional but doesnt elaborate on how it should be taken

Another popular lipotropic that can be administered via either IM or SubQ is MICC

S.et al (2021)