Hair slugging is a haircare technique that involves applying a thick layer of a sealant, usually petroleum jelly, to the hair and scalp before bed. This overnight treatment, similar to the Korean skin-slugging trend, helps create a protective barrier that locks in moisture and nutrients.
Gaining popularity for its potential benefits, hair slugging is said to hydrate dry and damaged hair, reduce frizz, and add shine. This practice has roots in ancient Ayurvedic traditions, where oils have been used for centuries to promote hair health.