Dr.Jart+ Ceramidin Serum
The serum step of a barrier-focused range built around ceramides, the lipids that make up part of the skin's own outer structure. Topical ceramides are one of the better-supported ideas in moisturising: they suit dry, flaky and easily-irritated skin, and they work best in company rather than alone. The serum is lighter than the cream and liquid in the same line, which makes it a layering product rather than the whole answer to dryness.
What it is built around
Who it suits
Dry, flaky and sensitive skin, and mature skin that has become less comfortable over time. Useful in winter and in air conditioning. Oily skin rarely needs it. If you are buying one product from this range, the cream is the more logical purchase — a ceramide serum without an occlusive over it is doing half a job, which the range's own structure quietly admits.
How to use it
After toner, before moisturiser, evening especially. Apply to slightly damp skin and follow with a cream to seal it — this is the step where that instruction genuinely matters. Morning use under sunscreen is fine for very dry skin. It layers well over a hydrating serum and under a sleeping mask in cold weather.
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🙋 People also ask
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.
What is the difference between essence, serum and ampoule?
Essence is the lightest and most hydration-focused, serum is more concentrated and targeted, and ampoule is the most concentrated of the three. The boundaries are marketing convention, not regulated definitions.
✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.