Just started using this product and I don't know if its working yet. First my skin got worse, then a little better, but nothing beyond my usual skin changes that happen during the month so I can't say if its the product or not. I do notice tingling in my skin when I use it, lots of warmth and if I use it more than twice on my sensitive face my skin becomes sensitive to the touch and feels dry. So I think that means its doing something and I'll have to update you when I know what that something is. It is a really cool idea and the research is there for these products to work so I am very hopeful. Sometimes I do use it in the day, but mostly at night because of the sensitivity to light after