Weight Management Services › MCC with B12 (lipo injection) Image 1 of 1 MCC with B12 (lipo injection) $25.00 Methionine, carnitine, choline, and vitamin B12 work together to effectively boost fat loss and support overall metabolism. Add To Cart Added! Methionine, carnitine, choline, and vitamin B12 work together to effectively boost fat loss and support overall metabolism.