L CARNITINE doses seen most say 600mg per day that cost would add up fast is that the basic dose if it's an injection L CARNITINE doses seen most say 600mg per day that cost would add up fast is that the basic dose if it's an injection Chase Irons (@chaseironsfitness) Facebook Amazon.com: Ronnie Coleman Signature Series L Carnitine XS 3000 Liquid, Amino Acids Metabolism and Lean Muscle Strength Support, Stimulant Free, Sugar Free, Zero Carbs, Blue Razz, 16 Oz : Health & Household Acetyl L Carnitine HCL 500mg per serving 180 Capsules