Key takeaways
- The order matters more than the number of steps: apply thinnest to thickest, ending with sunscreen every morning.
- The single best-evidenced step is daily SPF. A 4.5-year randomised trial found daily users had 24% less skin ageing than occasional users.
- You do not need ten steps. A four-step core, cleanse, treat, moisturise, protect, does most of the work.
- Wait 30 to 60 seconds between layers, and introduce one active (vitamin C, retinol, PDRN) at a time.
The Korean skincare routine is famous for being ten elaborate steps, which puts most people off before they start. The genuinely useful part is not the count, it is the order. Get the sequence right and even a short routine works better. Here is the running order, what the evidence says actually matters, and how to trim it without losing the benefit.
What is the correct order for a skincare routine?
The rule dermatologists and Korean routines agree on is thinnest to thickest. Watery products go on first so they can sink in, and richer creams go last to seal everything underneath. In the morning you finish with sunscreen, always.
| Step | Product | Morning or night |
|---|---|---|
| 1 | Cleanser | Both |
| 2 | Toner | Both |
| 3 | Essence | Both |
| 4 | Serum or ampoule (such as PDRN, vitamin C, retinol) | Both, see below |
| 5 | Eye cream | Both |
| 6 | Moisturiser | Both |
| 7 | Sunscreen | Morning only |
Which steps actually matter?
If you only take one thing from this, make it the sunscreen. In a randomised trial in Nambour, Australia, adults who used sunscreen daily showed no detectable increase in skin ageing over four and a half years, about 24% less than the group who used it as they pleased. That is the strongest evidence in all of skincare. Everything else is helpful, but optional.
| Core (do these) | Optional (nice to have) |
|---|---|
| Cleanser | Toner |
| Treatment serum | Essence |
| Moisturiser | Eye cream |
| Sunscreen (AM) | Sheet masks, extra ampoules |
Morning versus night: what changes?
Mornings are about protection, so they always end with sunscreen, and vitamin C fits well here. Nights are about repair, which is when richer creams and retinol belong. Keep the middle steps similar and simply swap the final product and the active.
Where does PDRN or an essence fit in?
Lightweight, watery treatments like an essence or a PDRN serum go on after toner and before moisturiser, while skin is still slightly damp. If you are curious about the salmon-DNA trend, our guide to the best PDRN serums explains what it does and which are worth buying.
How long to wait between steps?
About 30 to 60 seconds, or until the last layer no longer feels wet. You are not waiting for it to fully cure, just long enough that you are not simply pushing the previous product around.
Common questions
What order do you apply skincare in?
Thinnest to thickest. Cleanse, then toner, essence, serum, eye cream and moisturiser, finishing with sunscreen in the morning. Watery textures go first so each layer can absorb before the next.
Which step matters most?
Daily sunscreen, by a distance. A four and a half year randomised trial found people who used sunscreen daily had 24% less skin ageing than those who used it occasionally. No serum has evidence anywhere near that.
Do I really need ten steps?
No. The ten-step routine is a menu, not a rulebook. A four-step core, cleanse, treat, moisturise and protect, delivers most of the benefit, and a short routine you keep up beats a long one you abandon.
Can I use vitamin C, retinol and PDRN together?
Use vitamin C in the morning and retinol at night, since they suit different times. PDRN is gentle and hydrating, so it layers happily with either. Add one active at a time so you can spot any reaction.
How long should I wait between steps?
Around 30 to 60 seconds, or until the previous layer no longer feels wet. Long enough to absorb, not so long that the routine becomes a chore you skip.
Sources
- Hughes MCB, Williams GM, Baker P, Green AC. Sunscreen and prevention of skin aging: a randomized trial. Annals of Internal Medicine, 2013.
- American Academy of Dermatology: how to apply your skin care products in the right order.
How we wrote this: the ordering follows dermatology guidance and the sunscreen evidence is from the randomised trial linked above. General information, not medical advice.