@College_girl You’re not likely going to find a study to suit you. That’s because pharmaceutical companies aren’t going to make any money off of L-lysine. It’s too cheap to make and too effective as it is.
Once I had a break out, and discovered I had run out of it. I was busy, so I put off buying more. Before I knew it, my lip had swollen to 4 times its size and my lymph nodes swelled up until I looked like I had a goiter. Talk about pain! Ouch! The swelling was increasing by the minute, so I dropped everything and bought more. The swelling started to go down within the hour.
I try to get the capsules, but tablets will do. If I get capsules, I open one up and dump it right in my mouth. Otherwise, I chew the tablets. My body tells me how much I need because if it’s not enough, I start to swell again. LOL.
I’ve also discovered that good immune support, good vitamins, sleep, and attention to diet also help.