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 effects on CP score and serum albumin. (a) L carnitine Download Scientific Diagram Glycine Propionyl L Carnitine & ED : Benefits, Effects & Uses Allo Health Blog Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window