★★★★☆
I have had cold sores since I was 6. L-Lysine never worked for me. Once I discovered that this virus is in your nerve endings, I thought of anything that would be a destresser. One day by accident I tried L-Theanine. When the tingling came, I had just taken one. It broke out but only stayed two days and did not have any redness. The tingling and soreness was never felt. Thought I'd put this one out there for anyone who might want to try this.