How to seal in moisture for maximum skin regeneration

Skincare trend: what is slugging?

Slugging may sound odd at first, but behind the name is an effective care method that has long established itself as a go‑to for plump, hydrated skin. Originally from the Korean beauty scene, slugging is the final step of the evening skincare routine. Products are applied first, then a thick layer of petroleum jelly or another occlusive cream is applied on top.

The skin is sealed like under a protective shield, so the valuable moisture stays in the skin overnight instead of evaporating. This allows intensive regeneration, protects against external stressors and leaves the skin visibly smoother and more supple the next morning. The name “slugging” is no accident — the shiny film on the skin resembles a slug’s trail.

How does slugging skincare work?

The secret of slugging lies in a simple but highly effective technique. As the final step in the evening routine, a thicker layer of an occlusive product, such as petroleum jelly, is applied. It forms a protective barrier over the skin, like an invisible plaster. This keeps the moisture applied earlier locked into the skin and prevents it from evaporating overnight.

By sealing the skin, active ingredients from serums or creams can penetrate more deeply. This makes the most of the nightly regeneration phase. Slugging is particularly effective for dry, sensitive or irritated skin. The occlusive film soothes the skin, protects it and supports the restoration of the skin barrier.

Proper preparation is important. The face must be thoroughly cleansed and treated with skincare while the skin is still slightly damp. Only then is it sealed with petroleum jelly or a similar waterproof product — applied selectively to the areas that need the most intense care.

Which skin types is slugging recommended for?

Slugging can be a real skin saviour, but it isn’t for every skin type. Very dry, cracked or sensitive skin benefits most from this method, as the protective lipid layer helps lock in moisture and supports natural overnight regeneration. Slugging can also provide relief and visible improvement for skin irritated by retinol or peels.

Slugging is also possible for normal and combination skin, but it requires a gentle approach. Instead of sealing the entire face, it’s better to treat only the particularly dry areas, such as the cheeks or eye area.

For oily or acne‑prone skin the picture is different. Although petroleum jelly is not comedogenic and doesn’t clog pores, the dense occlusive layer can promote blemishes if sebum production is excessive. Those prone to spots or blackheads should therefore avoid full‑face slugging — or seek dermatological advice.

What effects does body slugging have?

Not only the face but also the body benefits from an extra dose of care via body slugging. After showering or your evening care ritual, a rich occlusive layer is applied to lock in moisture intensively.

The skin is sealed overnight so that no precious care ingredients are lost. At the same time it can regenerate undisturbed. The skin barrier is strengthened, irritations are reduced and the skin feels visibly smoother, softer and healthier the next morning. Body slugging is particularly effective for dry, stressed or sensitive body skin and acts like a restorative beauty booster while you sleep.

Slugging for hair — yes or no?

After face and body, it’s time for hair. Hair slugging is the trend aimed at revitalising brittle, dull hair. The idea is similar to classic slugging: a nourishing layer — in this case a high‑quality hair oil — wraps the hair overnight and prevents moisture loss. Wind, heater air, sun or salt water quickly dry hair out — hair slugging counteracts these effects.

Hair texture becomes noticeably smoother, dry ends are restored and hair regains shine and elasticity. For severely damaged, brittle or holiday‑stressed hair, this intensive oil treatment can be a real game changer.

With fine hair, caution is advised. Too much oil can weigh hair down and make it look lank. Start at the ends, choose the right oil — such as coconut, argan or avocado — and test how your hair reacts. Done well, you’ll be rewarded in the morning with silky, shiny hair — no frizz, just a great wow effect.

Nail slugging: does this trend save brittle nails?

Nail slugging is the new care trend that tackles dry, brittle nails. First, a nourishing nail oil is applied to the cuticle and nail bed. Everything is then sealed with a thick layer of petroleum jelly. Overnight the treatment can work deeply and deliver visibly better‑cared for nails the next morning.

Many dermatologists swear by this technique and recommend daily use — especially for heavily stressed nails. Nail salons confirm the effect. Regular users of nail polish, gel or acrylic can strengthen their nails, soften cuticles and prevent splitting with this intensive care.

However, nail slugging is not a miracle cure. If the cause of brittle nails lies deeper, for example due to nutrient deficiencies or hormonal changes, only a holistic solution helps in the long run: a balanced diet, adequate fluid intake and possibly medical consultation. Still, nail slugging can’t hurt — and regular practice rewards you with healthier, more attractive nails.

Which products are typically used for slugging?

For classic slugging, greasy, perfume‑free ointments with occlusive properties are ideal. They form an invisible film over the skin, prevent moisture from evaporating and support nightly regeneration. It’s important that the formulation is free of fragrances and irritating additives — especially for sensitive or reactive skin.

If you prefer mineral‑oil‑free ingredients, you can opt for natural butters such as shea or cocoa butter. Vegetable oils like jojoba, squalane or rosehip oil also have occlusive properties but are lighter and more breathable. They’re particularly suitable for combination skin or anyone who prefers a lighter skin feel.

For those who don’t want to apply a thick layer, moisturising creams with ceramides and skin‑like lipids are recommended. They strengthen the skin barrier, supply intensive moisture and make a good base for a gentle slugging variant — especially for sensitive or reactive skin.

Head‑to‑toe care: how to do slugging the right way

• Start with a patch test. Try slugging first on a small area. This lets you quickly see how your skin reacts and avoids unwanted irritation. This is an important step, especially for sensitive skin.
• Choose fragrance‑free products. Opt for creams or ointments without fragrances and unnecessary additives. This protects the skin barrier and reduces the risk of allergies or redness. Your skin gets pure care without extras.
• Cleanse the skin thoroughly. Before slugging, all make‑up residues should be removed. Otherwise you trap them beneath the layer — which can lead to breakouts or irritation. Clean skin is the best base.
• Apply light serums or a moisturiser before the occlusive product. Under the “seal” active ingredients work even more effectively. Your skin stays optimally hydrated.
• Avoid aggressive actives. Strong peels or high‑dose retinol are not recommended in combination with slugging. They could be too harsh and cause irritation. Choose milder products instead.
• Do slugging in the evening. Because a shiny layer remains, the method is suited to night use. The skin can regenerate undisturbed. In the morning everything can be gently rinsed off.
• Protect your pillow. A towel or cotton cover keeps bedding free of residue. Your pillow stays clean while your skin receives intensive care.
• Find the rhythm that suits you. Two to three evenings a week are sufficient. This lets your skin benefit from moisture without being overloaded.
• Your skin changes with seasons and stress. Watch how it reacts to slugging and adapt frequency or products. This keeps the routine flexible and effective.
• Try body slugging for dry skin. Elbows, knees and shins in particular benefit from an occlusive layer. The skin looks smoother and more supple the next day. Ideal in winter or after sun exposure.
• Pay attention to hair areas. Apply oils or masks only to dry zones. Ends and lengths benefit most, while greasy roots are left out. This avoids a weighed‑down feeling.
• Tie your hair up. A loose ponytail prevents hair sticking to the product. It also makes rinsing easier the next morning. Practical and gentle at once.
• Mind the water temperature when rinsing hair. Lukewarm water removes residues reliably; a cool rinse at the end closes the cuticle. That adds extra shine. Your hair looks cared for and vital.
• Combine slugging with a healthy diet. Your skin also needs support from within. Plenty of water, fresh fruit and vegetables replenish moisture stores. Combined with slugging, this produces visible results.

Slugging demonstrates how effective simple care rituals can be when consistently integrated into the evening routine. The method strengthens the skin barrier, traps moisture and can yield a noticeably rested complexion. When applied correctly and adapted to your skin’s needs, it’s an uncomplicated beauty trend with lasting effects.