Lysine may help reduce cold sore flare-ups, but don’t use it if you’re pregnant, as there isn’t enough research to support its safety. It’s a good idea to ask your doctor before trying any treatment.

Some recommend using lysine, an essential amino acid, to treat or prevent cold sores. Evidence shows it may work by helping to slow down the growth of the herpes simplex virus type 1. Cold sores are ...

Lysine is an essential amino acid that offers health benefits like improving muscle strength, preventing cold sores, and reducing anxiety. Most people get enough lysine from the foods they eat.

Lysine supplements are considered safe under most circumstances. Patients with severe renal or hepatic disease should avoid increased lysine intake due to the potential for interstitial damage in both ...

Colombo, J. P., Richterich, R., Donath, A., Spahr, A., and Rossie, E., Lancet, 1014 (1964). Meister, A., The Biochemistry of Amino Acids (Academic Press, Inc., New ...

Jillian Kubala, MS, is a registered dietitian based in Westhampton, NY. Jillian uses a unique and personalized approach to help her clients achieve optimal wellness through nutrition and lifestyle ...