First of all, Benton products don't contain any preservatives, which means that exposure to excess heat or excess moisture, or elapsed periods of time, can result in the product going "off." Luckily, however, these masks are individually-packaged, which minimizes the risks of any contamination. (As scary as this might sound, realistically, the lack of a preservative shouldn't be a problem as long as you don't open the mask and keep it around in a humid bathroom for six weeks before using it.)

All that being said, however, these masks are really great for soothing and brightening. I definitely recommend these for people who have dry/dehydrated skin with acne or whiteheads -- there's a visible difference in the prominence of acne, without drying out the skin, which is great. Additionally, the brightening boost provided by these is drop-dead incredible: these make skin look very "glowy."