ITs changed for the worse
I found this product in 2015 and had to order from Australia - I used it and it was simply amazing- so good that I quit getting my anit viral meds. Now that this stuff is out on amazon and other marketing and purchasing outlets, I feel that the formula has changed and is not as effective, and the cost has skyrocketed. So unfortunately this once great product is now making money over keeeping it’s efficacy and I’m so disappointed.
Jury is out
I used this at the beginning of a cold sore, and yes it stopped the cold sore BUT mere hours later I ended up with a cold sore just under the area and another one above the area! In other words I currently have 2 cold sores although they aren't big and one is nearly healed. I would try this product again but next time I'd also put it around the cold sore area not just on the cold sore itself like the directions specify.