Korean Serum: what it is & do you need it 세럼
Your targeted treatment — a concentrated dose of one or two actives for a specific concern (brightening, calming, firming).
At a glance
Do you need it?
recommended If you have a concern you actually want to address, this is the step that does the work. Choose by goal, not by hype.
Choose by concern
Choose by skin type
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What is the difference between essence and serum?
In Korean skincare, essence is typically a thinner, hydration-focused layer that preps skin, while serum is more concentrated with targeted actives like vitamin C or niacinamide. Essence usually comes first; serum follows. The line between them blurs, and not every routine needs both.
Do you really need all 10 steps of Korean skincare?
No. The 10-step routine is a menu, not a requirement. Many Koreans use a simple core of cleanser, hydrating toner, moisturizer and sunscreen, adding serums, essences or masks only as their skin needs. The point is consistency and customization, not maximum steps.
✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed 2026-06-21.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.