Slugging is the process of layering your skin with products such as Vaseline and Aquaphor and leave it overnight. If you don't want to apply a petroleum based product you could apply a thick moisturizer.
This method was only recently given the name "slugging" because of it's rise in popularity within Korean Skincare.Your skin barrier is extremely important as it will fight against pollution, be less prone to sensitivity and irritation, as well as keeping bacteria out. Sun exposure, harsh soaps, and genetics, are just some of the reasons that can lead to a damaged skin barrier.
Slugging can help you repair a damaged skin barrier as well hydrate your skin. Slugging is usually best fit for those with dry skin!