The Korean skincare trend is to apply a thick layer of something like petroleum jelly on your regular products or on its own, usually at night.
The idea is to prevent moisture loss. Sounds simple, but slugging (due to its resemblance to a slug’s trail) has divided opinions. Some call it a profitable hack, others fear it will cause acne.
Most hit-friendly products are made from cosmetic grade petroleum jelly. I note Epaderm (£ 13), Vaseline (£ 1.50) and Eucerin Aquaphor Soothing Skin Balm (£ 9; it also contains glycerin and lanolin). I cleaned my skin twice, applied a moisturizing serum to my face, neck and upper chest, then after a few minutes I added a pea-sized amount of petroleum jelly to each area. .
There are rules: the skin should be cleansed well to avoid trapping dirt under the barrier, which could cause irritation or acne. And it’s best done at night – I slapped my face during the day and it was very oily. I would also avoid using anything with active ingredients (such as acids or retinols) that can irritate – in fact, layering too much product under your “slug” could cause a reaction. (Ask an expert if you have sensitive skin.)
I went to bed with high hopes and in the morning my skin was softer. My facial eczema was itching a little less too. It’s just the name I’m sorry about.