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 amino acid, one of the building blocks of proteins. Lysine is classified as essential because the body can't make it. That means people must obtain it from their diets. Most people in the ...

Lycine is an amino acid that helps your body build proteins and supports your immune system. It’s in foods like meats, seafood, and dairy and plants like fruits, vegetables, nuts, and grains. People ...

Dear Doctor: Are cold sores and herpes the same thing? I’ve got both, and finding out there’s no cure really stinks. My friends say lysine can help. Is that true? Dear Reader: Cold sores and genital ...

Q. I had chicken pox as a child and shingles as an adult. I have gotten the Shingrix vaccine. For an occasional cold sore, I use acyclovir, but I take L-lysine daily for prevention. Has anyone studied ...

Researchers have gained fundamental new insights into the degradation of the amino acid lysine -- carcinogenic oncometabolites as intermediate products. The researchers from the Departments of ...

Unusually tight coordination of two glutamates (Glu795 and Glu820) and a lysine (Lys791) at the cation binding site was revealed in the crystal structure. A single H+ bound to Glu820 is extruded by ...