vitamin b12 injection im or sc Cyanocobalamin – 1000 mcg/mL Vitamin B-12 Cyanocobalamin
1000 mcg

Also, subcutaneous delivery is safe and easy to self-administer

Because the compound is sold on the gray market without routine independent oversight, purity and composition can vary between suppliers

Any use beyond controlled laboratory research, including introduction into humans or animals, is strictly prohibited

Choline supports phospholipid synthesis and liver fat export

Potential Research Applications Metabolic Regulation Studies Investigated for their combined effects on metabolic rate, lipid utilization, and energy homeostasis

Rat research found 38.4% oral bioavailability, but no human study has compared the two routes