Isntree Hyaluronic Acid Toner 히알루로닉 애씨드 토너
A hydration-only toner built on hyaluronic acid at several molecular weights rather than one, which is why it feels slightly more substantial than a plain water toner without turning tacky. Isntree keeps the rest short: humectants, a soothing extract or two, no added fragrance in the current version. It is the closest thing Korean drugstore skincare has to a plain glass of water for your face.
What it is built around
Who it suits
Dehydrated skin of any type — including oily skin that is short of water rather than oil. It layers well under heavier creams for dry skin and works alone under sunscreen for oily skin. Sensitive skin generally tolerates it. If your problem is genuinely low oil rather than low water, a toner will not solve it; you need an occlusive step.
How to use it
Apply to skin still damp from cleansing, AM and PM, then follow within a minute or two with something that seals it in. Humectants draw water from wherever they can find it, so a hyaluronic layer left bare in dry air can end up feeling tighter rather than softer. Two layers maximum for most people.
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🙋 People also ask
What is hyaluronic acid and how do you use it?
Hyaluronic acid is a humectant that draws water into the skin for a plumper, hydrated look. In Korean routines it's best applied to damp skin and sealed with a moisturizer on top, so the moisture it attracts stays locked in rather than evaporating.
What is a Korean toner and how is it different?
In Korea, toner (called 'skin' or 'skin toner') is usually a gentle, hydrating step that preps and balances skin after cleansing, rather than a harsh astringent. It's meant to add moisture and help following layers absorb, not to strip or tighten the skin.
What is a Korean toner pad?
A pre-soaked cotton or embossed pad delivering a measured dose of toner, or of a mild exfoliating or soothing treatment. It removes the guesswork about how much product to use.
✍️ 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.