I get asked so many questions about my pre workout combo, so here it is! I take Oxyshred + Acetyl L Carnitine. This combo gives me the energy I need to crush my workouts Nutrex Research, Liquid L Carnitine 3000, 31 Servings Walmart.com L Carnitine Liquid 3000 Metabolic Support VMI Sports Amazon.com: Force Factor L Carnitine Liquid 3000mg, Maximum Strength Supplement to Support Fat Metabolism, Cellular Energy & Muscle Recovery, High Absorbing, Non GMO, Orange Flavor, 16 oz Bottle : Health & Household Amazon.com: Liquid L Carnitine 3000 Plus Advanced 4 in 1 Formula with Acetyl L Carnitine, L Tartrate, ProGBB & Vitamin B, Stimulant Free High Absorption L Carnitine Supplement for Energy & Metabolism, 16oz : Health & Household