MASS Nutrex Liquid Carnitine 3000 vs L Carnitine 1000mg (L Tartrate) No They're Not The Same ! Here's Why : L Carnitine Base (Found in the Liquid) The liquid version usually uses the Base L Arginine and L carnitine Arginine is an amino acid which we can also produce naturally . This increases your notice oxide production , human growth hormone and improves circulation. These three Acetyl L Carnitine MRM Nutrition L Carnitine vs Fat Burner Which Is For You? L arginine and Erectile Dysfunction: Uses, Side Effects, Benefits Allo Health Blog