Taking this as a part of the Linus Pauling protocol with Vitamin C. Seems to be doing its job. Thorne is great, even though it is expensive. I have just ordered Now Foods Lysine to compare.

This product is great especially if you suffer from the herpie virus. One or two capsules a day and you will have very little if any break outs.

Use this to prevent cold sores when I feel one coming on. Take 2 capsules and that does the trick, used to get them all the time and haven't had one in years.

I use this for keeping away fever blisters which I get when stressed. Works good for me

I got caught this winter without any L-Lysine, and am now keeping this on hand. It works if you catch it early. I've gotten cold sores all my life, and know this is a good brand that works.

Thorne products are the best you'll find. If you need L-Lysine, this is the brand to get. Never any allergy problems and I have a lot of allergies.

bought this product as first aid for cases of herpes in the lips So far I did not have herpes, so I have not used it yet I'm sure he does the same job as any other lysine and I recommend using it

Thorne has an excellent reputation, I always try to purchase from such companies. I like that the capsules are vegetarian too. I take it because I have chronic herpes, I'm not absolutely positive it helps, but I do feel better on it.

I've been taking this for a reactivated Epstein Bar infection which triggered thyroid issues (Hashimotos). It's supposed to be very good for these conditions. I like the Thorne products as thye don't put unecessary fillers in.

Use it for viral infection and Thorne always have simple and honest product of high standard.