Hi Pumi,I have used a variety of concealers with my bare escentuals mineral foundation and they have all been fine,the people who sell the products always reccommend their own but i think thats just a sales pitch.the amazing cosmetics concealer i use is a cream in a tube and i use it everyday with minerals without it caking or sliding off.when i used touche eclat i put that on before the minerals out of habit.I don't know if different minerals would vary as i have always been pleased with bare escentuals and havn't used any other brand.I expect it all depends how pure you want all the make up you use on your face to be,some people can be particular about only using mineral or organic make-up.