Is It Lysine or L-lysine? Understanding the Essential Amino Acid's Form
                                
                                
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                                    4 min read                                
                            
                                Over 600,000 metric tons of lysine are produced globally each year for food and supplement applications. But when you see a supplement labeled as L-lysine, is it different from standard lysine? The short answer is no—L-lysine is simply the bioavailable form of the essential amino acid lysine that your body utilizes.