I think I found the holy grail of OTC coldsore Tx. I am SOOOO happy I found this at SDM. It appears to be a new formulation and doesn’t contain the same medicinal ingredients as other cold sore treatments I’ve used (both OTC and Rx). The product is produced in the GTA, which makes me like it even more. I used it for the first time this morning when I first felt a cold sore tingle. It’s now 5:30pm and it appears that the cold sore is not going to breach my skin! I also like how the product is a gel and not a cream. It seems to stay on better. I cannot recommend this product enough if you struggle with orofacial herpes (cold sores).