Also if you're having an outbreak then be conscious of the L-Arginine to L-Lysine ratio in your food plan you possibly can look on-line for solicitor law firms charts with the ratio of L-Lysine to L-Arginine in different foods. I do know that I have not had a cold sore since taking these. I have been taking a special lysine product (a thousand mg daily). This is THE ONLY lysine product I use on a regular basis