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LANEIGE

LANEIGE WATER SLEEPING MASK

Ingredient analysis and how the ad lines read

Read on 2026-09-11

What is this product?

LANEIGE Water Sleeping Mask is an overnight gel-cream applied as the last night step. The panel is humectant-led: butylene glycol, glycerin and trehalose at positions 2 to 4, three hyaluronic-acid forms, polyglutamic acid and beta-glucan, with four silicones and two acrylate copolymers forming a light film that slows overnight water loss. Barrier lipids are thin (ceramide NP second from last, squalane at position 7), so very dry skin needs a cream underneath. Fragrance is declared, with limonene and linalool listed as allergens, despite low-irritation badging. The brand's tests are unusually well footnoted for cooling and melatonin comparison but carry no design detail for the four tolerance badges, and the product is recorded as not holding functional-cosmetic status, which undercuts the clarity wording.

What makes it different?

Two things separate it from neighbouring overnight gels. First, the hydration side is built three ways at once (polyols, a hyaluronic-acid trio, and a silicone plus acrylate film) rather than leaning on one of the three. Second, the brand footnotes an instrumented cooling measurement with institute, panel size and dates, which is rare for a claim of that kind, even though what the instrument measured is surface temperature on heated skin rather than a soothing endpoint.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

We could not place these in the list above: 글리세릴카프릴레이트, 달맞이꽃오일

Did the ad claims hold up?

We checked 6 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

backed by evidence1

  • 3-layer hyaluronic acid
    Korean original

    3중 히알루론산

likely, not proven1

  • Absorbs quickly so it won't get on the pillow.
    Korean original

    베개에 묻을 새 없이 빠르게 흡수되는

partly backed3

  • A sleeping mask that transforms dry and dull skin into moist and clear skin overnight.
    Korean original

    건조하고 칙칙해 진 피부를 밤 사이 촉촉하고 투명한 피부로 가꾸어 주는 슬리핑 마스크

  • Skin irritated by heat, decreases by -4.5 degrees immediately upon use.
    Korean original

    열로 자극받은 피부, 사용 즉시 -4.5도 감소

  • Low-irritation mask
    Korean original

    저자극 마스크

overstated ad line1

  • Restores skin condition overnight with similar skin-improving efficacy.
    Korean original

    유사한 피부 개선 효능으로 밤 사이 피부 컨디션을 회복

Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.

How we read these lines

What else is worth seeing?

Products we read alongside this one.