Mineral Magic takes great pride in her makeup line and guarantees 100% satisfaction. Mineral makeup is pure, crushed minerals from the earth, that improves your skin condition. It provides an SPF (sun protection factor) of up to 20, depending on how much you apply. It is an anti-inflamatory for your skin, as well. Her makeup does NOT contain bismuth oxychloride, which is kin to arsenic, and is most likely the reason for skin discomfort and bad skin reaction. Since these minerals are 100% pure, bacteria cannot be supported and there is no expiration date. There is also virtually no allergy risk. It won't clog your pores and is used as a mineral supplement for your skin. Please visit Mineral Magic at http://MINERALMAGIC.etsy.com.