Combining Semaglutide and L Carnitine for Weight Loss Benefits of L carnitine injections are aplenty! This injection is a great way to boost your energy levels, help with weight management, and even promote healthy heart function. Studies show that L carnitine is an amino acid derivative that plays a crucial role in the bodys energy production processes. As an injectable supplement, L carnitine has been employed to support various health L Carnitine Injections: A Clinical Guide for Practitioners National Medical Resources Inc