While applying face oils or aloe vera before dermaplaning can reduce the potential for irritation, it's actually counterintuitive to do so. Dermaplaning requires the dehydration of the top layer of the skin to reveal those dead skin cells and make it easier to remove them. A face oil, on the other hand, creates a barrier on the skin and makes those skin flakes invisible. So, if you wish to dermaplane to remove peach fuzz only, you can use a gentle face oil and then start to shave. But if you're doing it for skincare purposes, it's best to keep those skin flakes visible and up for grabs.