Does NARS cosmetics cause breakouts?

Everyone's skin reacts differently to different products. It can be the highest of quality or the lowest and it may or may not break you out. I would say try not using it for a while to test whether it's that (remember it takes approx. 6 weeks for your skin to get used to anything but if it's severe stop). You could be allergic to something in the product, have sensitive skin or maybe your skin is going through some changes. I say take a break for a few weeks and see what happens, that's the only way you'll know. Keep in mind any "bad" skin history you have and keep that in mind as it could shed some light on a pattern. Have you always had pretty clear skin? Just keep those checks in mind :) good luck!! :)