Additionally if you're having an outbreak then take heed to the L-Arginine to L-Lysine ratio in your food regimen you can look on-line for lawyers in my area charts with the ratio of L-Lysine to L-Arginine in numerous foods. I do know that I have not had a chilly sore since taking these. I have been taking a different lysine product (1000 mg daily). That is THE ONLY lysine product I exploit on a regular basis