I have been using Biotherm products for 3 years and am very happy with their performance. This is the newest addition to their skincare line. It is described as a "Pure Spa concentrate skin perfector." You use it on cleansed skin before moisturizer. It contains 7 minerals/salts to purify, balance and prime skin. It left my skin smooth and matte, even after applying an oil-free moisturizer. And it hold my makeup in place longer, without oily breakthrough. It reminds me of Estee Lauder Idealist, but for slightly less $$.
