I've had cold sores since I was a kid. My son picked this up for me and it works! Cold sore cleared within a week. Applied at first tingle.

Read reviews saying it doesn't work. I disagree. Quality product that tackled the initial cold sore signs. And frequent application cleared the sore in a week. 10/10 for me.

I have been buying another product, and thought I'd try this product. It worked great. I just put it on my cold sore as it was tingling and it was gone the next day.

I get an enormous cold sore at least 2x per year. I carry Clera in my purse, so that at the first tingling of the skin, I can apply it. It works absolutely amazing, but you need to apply it as soon as you sense the cold sore coming on!

Stannous fluoride is mostly known for its properties in helping against tooth plaque. The study linked to this product is from nearly 30 years ago and shows very underwhelming, borderline inconclusive results. It's feels priced to trick consumers into thinking it's a high quality product but in reality, you're paying for 5ml toothpaste. It simply does not work against cold sores as advertised. I feel tricked having bought this off the shelf.

This product does not work and is over priced ridiculous!

Clera works wonderful!