Both Stryx products were formulated to be light, not to clog pores (especially the Concealer), and to be non-comedogenic, however this has not been clinically tested. It's extremely unlikely that you will react negatively to our products, but, in all honesty, it is always a slight possibility, especially if you have sensitive skin. We rarely hear about this being an issue from our thousands of customers, though, and our products were formulated to be light and not intense.