The internet never sleeps — and neither does the world of skincare. From glass skin to slugging, viral skincare routines are everywhere, flooding TikTok, Instagram, and YouTube feeds. But beyond the hype and hashtags, which of these routines truly deliver results?
Let’s dive into five skincare routines that are currently going viral online and explore the science, benefits, and potential drawbacks behind each trend.
1. The “Skin Cycling” Routine

What It Is
Skin cycling, coined by dermatologist Dr. Whitney Bowe, has taken TikTok by storm with over 500 million views. The concept is simple: instead of layering all your actives every night, you “cycle” them over several days to minimize irritation and maximize results.
The Typical Cycle
Night 1: Exfoliation (AHA/BHA)
Night 2: Retinol
Nights 3–4: Recovery (hydration + barrier repair)
Why It Works
By giving your skin recovery time, you reduce inflammation and strengthen your skin barrier. The strategic alternation allows potent ingredients like retinoids and acids to work more effectively without overexfoliating.
Pro Tip
Use a gentle, fragrance-free moisturizer during recovery nights. Think: CeraVe Moisturizing Cream or La Roche-Posay Cicaplast Baume B5.
2. “Slugging” – The Ultimate Barrier Hack

What It Is
Slugging involves sealing your nighttime skincare with a layer of petroleum jelly (like Vaseline) or another occlusive. It’s named after the “slug-like” glossy appearance it gives your face.
Why It’s Viral
The #Slugging trend on TikTok has garnered over 1 billion views, largely thanks to its dramatic “before and after” results. It’s especially popular during winter months or among people with dry, sensitive, or barrier-compromised skin.
How to Do It
Cleanse and apply hydrating serums or moisturizers.
Seal everything in with a thin layer of petroleum jelly.
Wake up with dewy, plump skin.
Why It Works
Petroleum jelly is an occlusive that prevents transepidermal water loss. It locks in moisture and helps your skin repair itself overnight. Dermatologists have long used this technique for post-procedure healing — social media just gave it a rebrand.
Caution
If you’re acne-prone, opt for lighter occlusives like squalane or lanolin-free balms.
3. The “Glass Skin” Routine

What It Is
Originating from South Korea, “glass skin” refers to a complexion so smooth, hydrated, and radiant that it reflects light like glass. It’s less about makeup and more about deep, consistent hydration.
The Routine
Double cleanse (oil + gentle foaming cleanser)
Exfoliate (2–3x per week)
Tone with hydrating essence
Apply multiple lightweight serums (hyaluronic acid, niacinamide)
Lock it all in with moisturizer and SPF
Why It Works
Layering hydration in thin, consistent steps boosts your skin’s water retention and elasticity. This method also supports a healthy skin barrier — key to achieving that luminous glow.
Product Tip
Look for ingredients like glycerin, hyaluronic acid, and panthenol. Korean brands like CosRx, Laneige, and Innisfree are cult favorites for this look.
4. The “Clean Girl” Skincare Routine

What It Is
Minimalist skincare meets effortless beauty. The “clean girl” aesthetic is about glowing, healthy skin achieved through a streamlined routine — think “less is more.”
The Core Routine
Gentle cleanser
Lightweight moisturizer
SPF (always)
Optional: a vitamin C serum for brightness
Why It’s Popular
Amid the skincare overload of recent years, people are craving simplicity. The clean girl routine emphasizes consistency and barrier protection instead of chasing every trending ingredient.
Why It Works
Overuse of actives can cause sensitivity, redness, and irritation. Scaling back allows your natural skin barrier to heal and balance itself. It’s also more sustainable — both for your wallet and the planet.
5. The “Hydration Sandwich” Technique

What It Is
This routine went viral thanks to influencers showing how layering moisture “sandwich-style” keeps your skin plump all day.
How It Works
You apply hydrating layers in this order:
Damp skin (after cleansing)
Serum (like hyaluronic acid)
Moisturizer
Optional: Occlusive or oil on top to seal it all in
Why It Works
Moisture binds better when trapped between layers — similar to how a sandwich holds its ingredients together. This method prevents dehydration, especially in dry or cold climates.
Bonus Tip
Use this technique under makeup for a naturally radiant, dewy finish.
Final Thoughts
Viral skincare routines can seem overwhelming, but many are rooted in solid dermatological science. The key takeaway? Consistency and balance.
Whether you’re slugging for hydration, cycling your actives, or simplifying your skincare routine, remember: what works for one person might not work for another. Always patch-test new products and listen to your skin.
Takeaway Summary
Trend Best For Main Benefit
Skin Cycling Oily/Combination Gentle use of actives
Slugging Dry/Sensitive Deep hydration and repair
Glass Skin All types Luminous, hydrated finish
Clean Girl Routine Sensitive/Minimalist Simplicity and balance
Hydration Sandwich Dry/Dehydrated Long-lasting moisture
✨ Skincare isn’t about perfection — it’s about protection.
Use these viral routines as inspiration, not rules, and tailor them to your skin’s unique needs.
