(And Why Korean Skincare Swears by It)
If you learned skincare from TikTok, you probably knew about the 4-2-4 rule (also known as “method”) long before I did. Meanwhile, I was over here at 61 still doing whatever the women at my local Ulta counter told me to do… and wondering why my skin looked tired no matter how many “miracle” jars I bought.
Everything changed the day a friend of mine — 62 years old, no Botox, no fillers, and skin so smooth it should be illegal, walked me through my first K-beauty glow-up. I’d tried products from Ulta, Sephora, YouTube recs… nothing worked.
Then she introduced me to clean Korean skincare, the ritual mindset behind it, and this very method you’re reading about now.
And yes — it worked.
So let’s talk about what the 4-2-4 rule actually is, why it’s worth the ten minutes, and how it fits into your routine without feeling like a second job.
The 4-2-4 RULE: Your Weekly Spa-Night “Deep Reset”
Most people searching what is the 4-2-4 rule in skincare want clarity, not chemistry.
Here’s the simple version:
4 minutes oil cleansing
2 minutes water-based cleansing
4 minutes rinsing (2 warm, 2 cool)
That’s it. Ten minutes, once a week, to deeply reset your skin.
It’s rooted in Japanese bathing culture and became popular through Korean skincare because it reflects what K-beauty does best: slow down, cleanse well, and protect the skin barrier.
And yes, you can technically use any brand, but I’m going to tell you exactly what I use, because these products changed my skin.
Step 1: 4 Minutes with Pure Cell Cleansing Oil
This isn’t a quick wipe-off-your-mascara moment. It’s four full minutes of breaking down makeup, SPF, sebum, pollution, and all the “I live in the real world” debris.
I use Pure Cell Cleansing Oil, and it’s the product that made me believe Korean skincare wasn’t hype. It dissolves everything without stripping your skin or making it feel greasy.
During these four minutes, you massage — lightly, slowly — especially around areas prone to congestion.
Your skin warms up, circulation increases, and your pores soften. This is where the magic starts.
Step 2: 2 Minutes with Snow Enzyme Cleanser
Once the oil has done its job, you add your water-based cleanser.
For me, that’s Snow Enzyme Cleanser—gentle, effective, and part of why Riman emphasizes skin-barrier–safe cleansing. It lifts away what the oil loosened and removes water-based debris like sweat and pollution particles. These two minutes are important.
If you’re wondering: Does the 4-2-4 method work? This is the part that answers that question. You’re not scrubbing harder — you’re cleansing smarter.
Step 3: 4 Minutes of Rinsing
Yes, the rinse matters.
2 minutes warm water to melt away residue
2 minutes cool water to calm the skin and support circulation
I let my skin air dry — no rubbing, no tugging.
This completes the 4-2-4 Korean skincare method, and if you’ve ever wondered why women over 50 look unbelievably glowy in Korean skincare transformations… this step is one of the reasons.
This is your at-home spa night, so light a candle and turn on a playlist.
Let it be the thing you do for you.
(What You Use After 4-2-4 Matters
After a 4-2-4 ritual, your skin is basically saying, “Okay, I’m wide open so give me something good.” This is when your products work harder for you.
I follow it with my full Riman ritual. That combination gives me hydration, firmness, and a healthy glow without feeling heavy or greasy. Think of it as finishing the spa moment you just created for yourself. If you’re giving your skin ten minutes of deep self-care, the products you apply afterward should rise to the occasion.
The full Riman ritual includes the BooSeBoo (serum, booster, serum) plus a moisturizer, which is also your K-beauty eye cream). You will notice the difference immediately! Your skin looks hydrated, smoother, more even. If you’re over 50 (or over 40, or honestly any age), what you put on your skin matters.
Is This a Daily Routine?
Absolutely Not.
If you read “4-2-4 skincare” and think you must spend ten minutes cleansing every morning and night, you’ll shut the browser and run.
Here’s how I actually do it:
Once a Week: My 4-2-4 Spa Night
The full ritual above.
Morning Routine (Fast & Easy)
I’m a get-in-the-shower-and-get-moving kind of human, so my morning routine has to be quick.
I keep the Active Cleanup Powder in the shower and use it there. It’s quick, gentle, and gets the job done without stripping my skin. When I get out, that’s when I do what I call my “Boo-Say-Boo” — Booster, Serum, Booster — and then apply my moisturizer from the EX line all over my face (it’s an eye cream too). I layer everything while I’m getting ready, and the whole thing takes just a couple of minutes before makeup.
And yes, I always apply sunscreen afterward. I don’t count it as part of the ritual, but it’s non-negotiable. I also use Riman makeup because it has skincare built in, so it feels more like I’m finishing the routine instead of covering it up.
Nightly Routine (Quick but thorough)
At night, I take my time a little more—not 4-2-4 level time, but enough to treat my skin with some intention. I start with the Pure Cell Cleansing Oil, then the Snow Enzyme Cleanser. That cleanser is wild (it foams, then disappears on your face), but it gets every bit of leftover grime out.
After cleansing, I switch to the RADIANSOME™100 line for the toner, serum and moisturizer. What makes this different is the Microfluidizer technology. In Layman’s terms, it’s med spa level skincare without the med spa level price. I didn’t start there, and a lot of women are perfectly happy with the EX line at night, but my skin loves the extra nourishment of the 100 line while I sleep. It’s simple, consistent, and takes maybe five minutes from start to finish.
Who Is the 4-2-4 Method Good For?
Great for:
- Anyone who wears makeup or SPF
- Anyone dealing with congestion or dull skin
- Anyone wanting to boost glow without harsh exfoliation
- Anyone +50 wanting a gentle but effective deep cleanse
If your skin is very sensitive or very dry, start once every other week and adjust based on how your skin responds.
Does the 4-2-4 Method Work?
Short answer: yes.
Long answer: it works because it follows what K-beauty has always prioritized:
- proper cleansing
- respecting the skin barrier
- hydration
- circulation
- consistency
Riman builds on this philosophy. From patented giant byoungpool leaf and JeJu lava water in the EX line to the science-backed formulas developed for hydration and skin integrity— these routines support the whole skin system, not just the surface.
When you cleanse well, everything else works better.
Want to try the exact products I use?
It’s the simplest way to build a routine that works, especially if you’re 40, 50, 60+ and ready for skin that actually reflects how good you feel.
If you have more questions…check out our RIMMAN skincare FAQ page here.
