The use of Bismuth Oxychloride in almost all of the best-selling mineral powder make-up today is unfortunate, because the vast majority of acne and rosacea sufferers trying these products find they also irritate and aggrevate their condition. This leads them to be let down, once again, by advertising claims. Several mineral powder companies now leave off this harmful additive. "Belle Saison", at www.4skinbeauty.com was the first to forgo the ingredient and is the reason so many others now tout the "bismuth-free" status of their make-up. 4skinbeauty uses only micronized mineral pigments, no "rice powder" or corn starch anywhere. Rice powder and corn starch are food grade additives, and therefore can cause molds, yeasts and other "bad boys" to grow. Belle Saison uses only inorganic componants in our mineral powder make-up line. As someone who has battled with skin problems for 20 years, it is refreshing to use Belle Saison's mineral make-up line, and to finally be seeing the last of unsightly skin maladies. The longer I use the products, the better my skin looks. I think the mineral zinc has a lot to do with that.