NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets

Probably placebo

My last cold sore breakout was 1.5 years ago. After then, I had started taking these supplements for the purpose of preventing future outbreaks. I typically experience a cold sore outbreak roughly once every six months but Ive been mostly clear with the exception of a short and very tame outbreak on my lower lip last week. Needless to say, Im happier now that I have less cold sore episodes. Its entirely possible that my improved condition and the use of this product are unrelated, but I choose to believe otherwise. I recommend taking this supplement daily if you experience cold sores.

For a good price

not sure why, but the tablets dont seem to work as well as the capsules

I recommend.

I got this for my dogs itching. He is an older dog and I think he was over vaccinated throughout his life so he has some skin viruses. I read somewhere that lysine helps with the itching and it seems like it did. If you decide to try it, check with your vet first though because it may contradict some medications and other vitamins.

I crush these and give my cat some every day and I wanted the tablets not the powder filled pills.I have purchased the tablets before and they last so much longer.Disapointing !!! Not a great value!!!

I take these because I have always had a problem with canker sores in my mouth, but since I started taking this they have stopped. Took them daily at first now just 3 or 4 times a week. Good stuff

Bought to treat shingles. Results in 2 days. Also works for mouth sores (canker sores). Recommend this and tea tree oil/and neem oil topically to clear shingles.

Our 6 month old boxer puppy had been suffering from canine papilloma virus for almost 3 months. She had huge warts all over her face, including some inside her mouth that made it difficult for her to eat. They bled constantly, making a mess and making her miserable. After reading about L-Lysine online as a possible remedy, I purchased these. Within 2 days the warts had started shrinking noticeably, and they were gone completely within a week.