Carnitine, Carnosine & Creatine OH MY! Dr Michael Greger of Nutritionfacts.org Creatine monohydrate vs. Creatine HCL Both forms boost strength, explosiveness, and muscle performance. Monohydrate: The most researched, proven, and cost effective choice. HCL: Highly soluble, gentler on the stomach, Can We Take L Carnitine and Creatine Together? Prorganiq Creatine monohydrate and L carnitine are two of the most researched supplements in the game., We are talking years. Decades. Proven over and over again., Creatine is your foundation., More strength.