Torriden DIVE-IN Low Molecular Hyaluronic Acid Serum 다이브인 저분자 히알루론산 세럼
A plain, fragrance-light hyaluronic acid serum that became a bestseller by being unobjectionable. Several molecular weights of hyaluronic acid, a watery gel texture, no acids, no strong botanicals, nothing that argues with anything else in a routine. It is the product people are pointed to when their skin is irritated and they need a hydrating layer that cannot make things worse. That modesty is the entire selling point.
What it is built around
Who it suits
Every skin type, which is unusual and mostly a function of how little is in it. Particularly useful for dehydrated oily skin that wants water without oil, and for sensitive skin between stronger products. It is not a moisturiser and will disappoint anyone expecting one. If your skin is dry rather than dehydrated, you need the cream more than you need this.
How to use it
Onto damp skin after cleansing or toner, morning and evening, then seal with a moisturiser within a minute or two. Applying humectants to dry skin in dry air is the classic mistake — the water has to come from somewhere. Two or three drops. It layers under sunscreen and makeup without pilling, which is half its popularity.
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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 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.