Hello~Don't wear any makeup. Some cosmetics contain metals that can interact with MRI magnets, so on the day of the MRI don't wear makeup or nail polish. Also, minimize hair products and forgo antiperspirants and sunscreens, which contain metals, just to be safe.
Eyeshadow, lipstick and skin cream possess the highest amounts of these substances. Leaving it on during an MRI can run the risk for burns or blurry images.