L Carnitine 4000mg 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 Amazon.com: Ronnie Coleman Signature Series L Carnitine XS 4000 Liquid, Stimulant Free, Sugar Free, Zero Carbs, Lean Muscle Strength Support for Men & Women, 16 Oz (16 oz, Orange Creamsicle (4000)) : Health & Household Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health Ronnie Coleman L Carnitine XS 4000 Sportsfuel Supplements NZ