I know this is just water and nitrogen but somehow it broke me out. I know it was this product because it was the only new item in my routine. I never break out except an occasional pimple now and then but I experienced multiple clusters of breakouts each time I tried this over a period of a couple weeks. After I stopped using it they cleared right back up with my normal cleansing routine. So strange but after reading other reviews I see I\’m not alone. I gave two stars because aside from my skin\’s reaction it is refreshing and a neat concept even though it is pricey.