Just make sure you’re lining just the skin, not the hair; the oil can keep color from dyeing the hair (which is the whole point of this venture, anyway). You also don’t want to skimp on ingredients here—as always, be mindful of comedogenic products that may cause breakouts (especially if you’re applying to areas prone to clogged pores, like the hairline). Gloves are also your friends here, as your hands are typically the first sign of an at-home hair dye job gone awry. They’re included in many box dyes for a reason, so use them! You can even saturate a clean washcloth with shampoo before rubbing the stain off, if you need a tad more scrubbing. Either way, you’ll want to keep it waterless—which means, work on the stains before washing out your color. According to Rez, it’s best to assess your skin first before hopping into the shower to rinse.