Traditionally used to treat minor cuts and burns, petroleum jelly is a thick, waxy paste that forms a barrier over skin to protect wounds and promote healing. When it comes to skin care, it can be used for slugging, a K-beauty trend that took off on TikTok last year that involves coating your face in the ingredient to lock in moisture overnight. Vaseline is the most popular product for slugging, which generally works best on dry skin types. It's cheap, effective and will last you a long time.
