KmS loose mineral powders compare to the quality of the Bare Minerals/Bare Escentuals line. The major difference is that our cosmetics do not contain Bismuth Oxychloride found in the Bare Minerals product. Bismuth Oxychloride is a natural mineral; and known skin irritant. In most cases, it can cause breakouts and/or skin irritation for many women, even those that do not normally have sensitive skin. You will find that our loose mineral powder has more of a silky consistency when compared to Bare Minerals which results in a less “powdered” look. KmS loose mineral foundation also contains a natural mineral called Kaolin Clay that is known for it’s excellent oil absorption properties, resulting in all-day-wear and beyond!