The Viral “Slugging” Trend: Should You Try It?
If you’ve spent any time on TikTok or Instagram lately, chances are you’ve stumbled upon the glossy, almost slimy-looking skincare ritual called slugging. Beauty influencers across social platforms swear by it, claiming it leaves skin glowing, plump, and hydrated. The term might sound strange—even a little unappealing—but slugging has quickly become one of the hottest skincare trends in recent years.
But does it actually work? Is it for everyone, or just another passing fad that could backfire on certain skin types? In this post, we’ll break down what slugging really is, why it’s gone viral, the science behind it, and whether or not you should give it a try.
What Exactly Is Slugging?
Slugging is the practice of applying a thick layer of an occlusive product—most commonly petroleum jelly, like Vaseline—over your nighttime skincare routine. The term “slugging” comes from the shiny, slug-like sheen your face gets after slathering it on.
The goal is to “seal in” your skincare products and lock in moisture while preventing water loss overnight. Unlike moisturizers, which hydrate the skin, occlusives like petroleum jelly create a protective barrier on the skin’s surface, minimizing transepidermal water loss (TEWL).
While it may feel like a modern TikTok hack, slugging has actually been around for decades. Dermatologists and K-beauty enthusiasts have long recommended using occlusives to heal dry or damaged skin. What social media did was rebrand it with a catchy name—and now millions are trying it out.
How Slugging Works
To understand slugging, you need to know a bit about skin physiology. Your skin naturally loses water throughout the day, a process known as TEWL. This can be made worse by environmental factors like cold weather, dry air, or over-exfoliation.
Here’s where slugging comes in:
You apply your usual skincare products first (serums, treatments, moisturizers).
You finish with a thin—or thick—layer of an occlusive such as Vaseline, Aquaphor, or another petroleum jelly product.
The occlusive forms a protective film over your skin, preventing water loss and helping the underlying products penetrate more effectively.
In short, slugging doesn’t add moisture itself—it prevents the moisture you already have from escaping. Think of it as putting a lid on your skincare.
Why Did Slugging Go Viral?
Part of slugging’s appeal lies in its simplicity. Unlike elaborate 12-step skincare routines or expensive treatments, slugging requires just one affordable product that’s been around for over a century.
It’s budget-friendly. A tub of Vaseline costs only a few dollars and can last months.
It’s accessible. Petroleum jelly is widely available worldwide.
It’s visible. The “sluggy” shine makes for dramatic before-and-after TikTok videos.
It works quickly. Many users report waking up with softer, plumper skin after just one night.
Social media thrives on instant gratification and noticeable transformations, and slugging delivers both—hence its viral success.
The Benefits of Slugging
If done correctly, slugging can have real skin benefits. Dermatologists often recommend it for:
1. Dry or Dehydrated Skin
Those with chronically dry skin often struggle with moisture retention. Slugging can help keep hydration locked in overnight, reducing flakiness and tightness.
2. Barrier Repair
Harsh exfoliants, acne treatments, and cold weather can damage the skin barrier. Using petroleum jelly gives the skin time to heal and protects it from further irritation.
3. Anti-Aging Support
Well-hydrated skin looks plumper and can minimize the appearance of fine lines. While slugging isn’t an anti-aging treatment per se, it does improve the overall look of the skin.
4. Healing Minor Irritations
Petroleum jelly has long been used to protect minor cuts, burns, and abrasions. When used in skincare, it can soothe irritation and reduce redness.
Who Should Avoid Slugging?
As with any skincare trend, slugging isn’t for everyone. The thick, occlusive layer can sometimes do more harm than good depending on your skin type.
Oily or Acne-Prone Skin: Occlusives can trap sebum, dirt, and bacteria, potentially clogging pores and worsening breakouts.
Combination Skin: Some areas may benefit (like dry patches), but applying it to your entire face might be too heavy.
Sensitive Skin with Active Acne Treatments: If you’re using products like benzoyl peroxide or retinoids, slugging may intensify irritation by trapping the actives against your skin.
Dermatologists generally recommend slugging only for those with dry or compromised skin barriers—not as a universal fix for everyone.
How to Slug the Right Way
If you’re curious to try slugging, here’s how to do it properly:
Cleanse thoroughly. Start with a gentle cleanser to remove dirt, oil, and makeup.
Apply your active skincare. Use your usual serums, toners, or moisturizers (avoid strong acids or exfoliants before slugging).
Seal with an occlusive. Apply a thin layer of petroleum jelly or Aquaphor as the final step.
Protect your bedding. Some people wear a soft headband or place a towel on their pillow to prevent stains.
Keep it occasional. Most people benefit from slugging a few nights per week, not every night.
Alternatives to Petroleum Jelly
Not a fan of Vaseline? There are other occlusives you can try:
Aquaphor: Contains petroleum jelly plus soothing ingredients like glycerin and lanolin.
CeraVe Healing Ointment: Infused with ceramides and hyaluronic acid.
Plant-Based Alternatives: Shea butter, cocoa butter, or squalane may feel lighter while still sealing in moisture.
These alternatives may be better suited for people with sensitive skin who want extra nourishment without the heaviness of straight petroleum jelly.
Dermatologist Opinions
Most dermatologists agree that slugging can be beneficial for people with dry or damaged skin barriers. However, they caution against overdoing it or expecting it to be a miracle solution.
According to experts:
Petroleum jelly is non-comedogenic, meaning it technically doesn’t clog pores. Still, it can trap oil and debris if skin isn’t cleansed well beforehand.
Slugging should not replace moisturizers—it should seal them in.
It’s best to avoid slugging over active treatments like retinoids, exfoliating acids, or benzoyl peroxide.
The bottom line? Slugging is safe, inexpensive, and effective for the right skin type—but it’s not universally recommended.
Common Myths About Slugging
Let’s clear up a few misconceptions:
“Slugging hydrates your skin.”
Not directly. It prevents water loss but doesn’t add hydration on its own.“Petroleum jelly clogs pores.”
Pure petroleum jelly is non-comedogenic. Breakouts usually result from trapped oils or improper cleansing.“You need to use a thick layer.”
A thin layer is often enough. More product doesn’t mean more results.
Should You Try Slugging?
Slugging isn’t a one-size-fits-all miracle, but for many people, it’s a game-changer. If your skin feels dry, flaky, or irritated, it might be worth experimenting with. On the other hand, if you have oily or acne-prone skin, you’ll want to proceed with caution or try spot slugging—applying the occlusive only to dry patches.
Remember, skincare is highly individual. What works wonders for someone on TikTok might not be right for you.
Final Thoughts
Slugging’s viral rise is a reminder that sometimes the simplest solutions can be the most effective. A $3 tub of Vaseline can, in the right circumstances, deliver the same “glass skin” glow that expensive serums promise. But it’s not magic, and it’s not for everyone.
If you’re considering trying slugging, start slow. Try it once or twice a week, observe how your skin reacts, and adjust accordingly. Pair it with a gentle skincare routine, and you may discover why millions are obsessed with this slimy but surprisingly effective trend.
At the end of the day, the best skincare is about listening to your skin, not just following trends. Slugging can be a useful tool—but whether it deserves a permanent place in your routine is entirely up to your skin’s unique needs.
