— Ultimate Guide to Korean Skincare —
The 10-Steps Korean Ritual
Not more products — smarter layers. Korean routines layer thin-to-thick, water-to-oil, so each product penetrates fully before the next seals it in. The result: more from less, in every layer.
Oil Cleanser
Dissolves SPF, makeup, and sebum so your water cleanser isn't fighting through a layer of the day.
Your skin, your steps
Korean skincare is not a trend to follow. It's a method — layered, intentional, built around what your skin actually needs.
Know Your Skin
Aesu
Your skincare ally
Ingredients Matter
Choosing the right steps is only half of it. The other half is what's actually inside the bottle — and whether it belongs in your routine at all.
An active at the wrong concentration does nothing. Two ingredients that work against each other undo what you've already done. A product formulated for oily skin applied to a dry one can quietly disrupt your barrier for weeks before you notice.
Here's what to combine, what to keep apart — and why.
Pick an ingredient
Combinations that work
- Balancing
Niacinamide + Hyaluronic Acid
Niacinamide regulates sebum and reduces dark spots; hyaluronic acid draws water into the skin. Together they balance without stripping — ideal for combination, dehydrated, or stressed skin.
- Tolerance
Niacinamide + Retinol
Niacinamide raises the skin's own ceramide production and calms the inflammatory response retinol triggers in its first weeks. In controlled testing it measurably reduced retinol-induced dryness and stinging without blunting the result.
- Brightening
Niacinamide + Tranexamic Acid (TXA)
They interrupt pigment at two different points — tranexamic acid quiets the signal that tells melanocytes to produce, niacinamide blocks the transfer of finished pigment to surface cells. Studied together for melasma and post-acne marks.
Combinations to avoid
Niacinamide has no documented conflicts with anything else in this library. It can sit anywhere in a routine.
A good routine isn't the one with the most steps or the most actives. It's the one where every ingredient earns its place — and works in concert with the ones around it.
Where to start
Routines, step by step
PMEvening Barrier Repair Routine
Three steps for skin that has been asked to tolerate too much. Built on centella and panthenol, and not much else.
AMMorning Skin Longevity Routine
Protect what you already have. Three steps, on clean skin.
PMEvening Skin Longevity Routine
Double cleanse, retinol, lipids on top.
Morning Routine for Dullness and Pigmentation
A routine that works on hyperpigmentation without provoking the skin it is working on — gentle enough for sensitive skin because the vitamin C is a stable derivative, not pure ascorbic acid.