L Carnitine vs L Arginine: Understanding Their Differences and Benefit Fitness Health 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 L Carnitine and L Arginine Tablets Manufacturer and Supplier in India Pure, L Arginin Plus L Carnitine, 30 Sachets