What is slugging in skin care?

Slugging skin care is a technique where you apply a thin layer of an occlusive product—like petroleum jelly or a healing ointment—as the final step in your nighttime routine to lock in moisture and help support skin barrier repair. This method may create a protective seal over your skin layers, helping preventing water loss while you sleep.

The technique has roots in K-beauty but gained mainstream popularity through TikTok, where users shared dramatic before-and-after results.

Information provided is for educational purposes only and is not intended as medical advice or a guarantee of results. Consult a dermatologist or healthcare professional for personalized skin care guidance.

What is slugging and why is it trending?

Slugging is the practice of applying an occlusive moisturizer as the last step in your skin care routine to create a moisture-sealing barrier overnight. The name comes from the shiny, slug-like appearance your skin takes on after application.

Slugging's viral status on social media platforms introduced the technique to millions of skin care newbies curious about achieving that coveted dewy glow. The trend aligns with a broader shift toward barrier-focused skincare, where protecting and repairing the skin's moisture barrier takes priority over aggressive treatments.

Is slugging a good fit for your skin type?

Slugging is generally safe for most skin types, but its suitability depends on your specific skin concerns and how you approach the technique.

• Dry and dehydrated skin types benefit most from slugging. It may help restore moisture balance and support barrier repair overnight.
• Normal and combination skin types can also incorporate slugging successfully, though you may want to limit application to drier areas like cheeks and forehead while avoiding the T-zone. This targeted approach lets you enjoy hydration benefits without overwhelming areas that produce adequate oil naturally.
• Oily skin types require more caution. While petroleum jelly itself is non-comedogenic, sealing in excess sebum and potentially pore-clogging products underneath can contribute to congestion. If you have an oily skin routine, consider slugging only on particularly dry nights or limiting it to once weekly rather than nightly.
• Acne-prone skin types should also approach slugging carefully. The technique isn't inherently problematic for breakout-prone skin, but trapping the wrong products—or slugging over active breakouts—can worsen inflammation.
• Sensitive skin types often respond well to slugging. However, patch testing any new products is essential.

How to slug your face?

The correct slugging technique involves layering products from thinnest to thickest consistency, finishing with your occlusive as the final seal. Following these steps ensures maximum hydration without compromising skin health.

1. Cleanse thoroughly. Start with a gentle cleanser to remove makeup, sunscreen, and other dirt. Double cleansing—using an oil-based cleanser followed by a water-based one can help with achieving a cleaner starting point. Slugging over dirty skin traps impurities against your face, which can lead to breakouts.
2. Apply your treatment products. This is where you layer any treatment serums targeting specific concerns like hydration, brightening, or anti-aging. Hyaluronic acid serums may work well before slugging because the occlusive layer helps prevent the hyaluronic acid from drawing moisture out of your skin in dry environments.
3. Follow with moisturizer. Apply your regular nighttime moisturizer and let it absorb for a minute or two. This step is optional for some, but adding moisturizer before your occlusive can help create additional hydration layers for the seal to lock in.
4. Apply your occlusive. Take a pea-sized amount of your chosen slugging product and warm it between your fingertips. Gently press and pat—don't rub—a thin, even layer across your face. You want enough coverage to create a slight sheen, not a thick mask that will transfer onto your pillow.
5. Let it work overnight. Sleep on a silk or satin pillowcase to minimize product transfer and friction. In the morning, cleanse your face as usual to remove the occlusive layer before applying your daytime products.

Building slugging into your nighttime beauty and skincare routine two to three times per week is a good starting point. You can adjust frequency based on how your skin responds.

Best slugging products

Choosing the right occlusive product depends on your skin's needs, texture preferences, and ingredient priorities. Here's how different slugging products address various concerns.

• For classic, budget-friendly slugging: Traditional petroleum jelly is a great option. It's can help prevent water loss and is non-comedogenic
• For targeted, mess-free application: The TONYMOLY 24K Snail Moisture Lock Slug Stick offers a modern take on slugging with a convenient stick format. This type of product allows precise application to specific dry areas without the slippery fingers associated with traditional ointments.
• For less stickiness: The Peach & Lily Velvet Biome Smoothing Silky Ointment provides occlusive benefits with a less oily texture.

Slugging mistakes to avoid

Even a simple technique like slugging can go wrong without proper execution. Avoiding these common mistakes may help protect your skin from irritation.

• Slugging over active ingredients: Applying an occlusive over retinoids, AHAs, BHAs, or other potent actives could cause significant irritation, redness, or peeling. On nights when you use active treatments, skip slugging entirely or wait until the actives have fully absorbed and you've applied a buffer moisturizer.
• Using too much product: More isn't better with slugging. A thick layer doesn't provide additional benefits and could increase the risk of product transfer, clogged pores, and that uncomfortable heavy feeling. A thin, even layer creates adequate occlusion without excess.
• Slugging every single night: Most people may benefit from slugging two to four times per week rather than nightly, allowing skin to breathe between sessions.
• Skipping the cleanse beforehand: Slugging over uncleansed skin may trap dirt against your face for hours.
• Ignoring your skin's feedback: If you notice increased breakouts or irritation after starting slugging, your skin is telling you something. Reduce frequency, switch products, or consider whether slugging suits your skin type at all.

Frequently Asked Questions

Does slugging clog pores or cause acne?

Petroleum jelly, the most common slugging product, is non-comedogenic. However, slugging could contribute to breakouts if you apply the occlusive over pore-clogging products, skip cleansing beforehand, or have an oily skin routine that already produces excess sebum. Those with acne-prone skin should slug cautiously.

Is slugging safe for sensitive or acne-prone skin?

Slugging is generally safe for sensitive skin and could actually protect reactive skin from irritants. For acne-prone skin, caution is necessary—avoid slugging over active breakouts or potent acne treatments, and limit frequency to prevent congestion. Patch testing any new product is recommended regardless of skin type.

How often should you slug your face?

Most people benefit from slugging two to four times per week rather than every night. Start with two nights per week and adjust based on your skin's response—increasing during dry seasons or decreasing if you notice congestion or breakouts.

What ingredients should you avoid when slugging?

Avoid slugging over active ingredients like retinoids, AHAs, BHAs, benzoyl peroxide, or vitamin C serums. On nights when you use potent treatments as part of your basic skincare routine, skip slugging or ensure adequate absorption time and a buffer moisturizer layer first.

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