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Korean Skincare for Slugging

Slugging is the habit of finishing your evening routine with an occlusive layer to help slow water loss while you sleep, so skin feels more comfortable by morning. It is a comfort and moisture-sealing step, not a treatment for any condition, and it is not for everyone — occlusives can feel heavy and may not suit very oily or breakout-prone skin. Below are the Korean product types people reach for when slugging, with honest notes. Apply the occlusive as the last step over a hydrated face, use a clean pillowcase, and patch test anything new.

Honest ingredient notes No fake ratings Patch test first
Slugging stepsThree-step night sequence: add hydration, apply moisturiser, then seal with an occlusive layer.1Hydrate2Moisturise3Seal (occlusive)

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Product types to know

These are general ingredient and product types, not endorsements of any single brand. Always read the current label and patch test before regular use.

Slugging layersSchematic cross-section showing an occlusive seal on top of moisturiser, hydration and cleansed skin.Occlusive seal (balm) slows water lossMoisturiser adds comfortHydrating essence underneathCleansed skin

Frequently asked questions

What is slugging in Korean skincare?
Slugging means applying an occlusive product, such as a petrolatum balm, as the final night step to help slow water loss while you sleep. It is a comfort and moisture-sealing habit, not a treatment, and you apply it over an already-hydrated face.
Is slugging good for acne-prone skin?
Heavy occlusives can feel uncomfortable on oily or breakout-prone skin and some people find they congest. If you are acne-prone, consider slugging only on dry patches, use a lighter sleeping mask instead, and patch test. A dermatologist can advise if you keep breaking out.
How often should I slug?
Many people slug a few nights a week or only when skin feels especially dry, rather than every night. There is no fixed rule — start occasionally, see how your skin feels in the morning, and stop if it feels congested.
What do I put under the occlusive?
Slugging seals in whatever is already on the skin, so most people apply hydrating layers first — a watery essence and a moisturiser — then finish with the occlusive. Avoid sealing strong actives unless you know your skin tolerates them, since occlusion can increase their intensity.
Can slugging replace moisturiser?
No. An occlusive mainly slows water loss; it does not add water itself. You still want a hydrating step underneath. Think of slugging as the lid, not the contents.

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This page is general information about skincare ingredient types, not medical advice. Everyone’s skin is different — patch test new products and consult a dermatologist before starting anything if you have a skin condition, allergies, or are pregnant.

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