Lipo Injections: How Often Should You Take Them? Invigor Medical Lipo B Injection Empower Pharmacy 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 Now offering lipo B weight loss injections! What Is in a Lipotropic Injection? Our lipotropic formula contains nine ingredients: Vitamin B1 Essential for glucose metabolism. Vitamin B2 Breaks down protein,