Lipo B Shot Lipotropic C Injection Lipo B vs Lipo C: What's the Difference? We get this question often in clinic what's the difference between Lipo B and Lipo C, and how do you know which one to choose? Both are LIPO C Skinny Shots, So the medical name is called Lipotropic injections. Its mixed at a compound pharmacy in Texas. , Lipo c is a once weekly intramuscular injection. It is known to speed up your