Korean skincare brand ISNTREE is participating in the Loft K-Cosme Festival 2026SS, organized by Loft Co., Ltd. As part of this event, ISNTREE is launching an exclusive pre-release of its ultra-low molecular hyaluronic acid (*1) sheet mask, marking the product's official debut in Japan.
Ultra-Low Molecular Hyaluronic Acid Sheet Mask
The sheet mask features 500 Da (*2) ultra-low molecular hyaluronic acid (*1) that penetrates quickly into the skin to refine texture and deliver deep, long-lasting moisture.
ISNTREE's hyaluronic acid formulations use a complex blend of 12 types of hyaluronic acid with varying molecular sizes — ranging from high-molecular (2,000 kDa), which forms a moisture-protective film on the surface, to ultra-low molecular (average 500 Da) (*1), which locks in hydration deep within the skin. This layered approach is designed to address inner-dry skin, where the surface feels oily but deeper layers lack moisture. The ultra-low molecular hyaluronic acid penetrates quickly (*3) to deliver rapid moisture replenishment (*4).
(*1) Moisturizing ingredient
(*2) Average ultra-low molecular size of hyaluronic acid
(*3) Individual results may vary
(*4) Up to the stratum corneum
Key Features:
**Ulleung Island Deep Sea Water (*5)**: Rich in magnesium, potassium, and calcium, this ingredient helps boost skin moisture retention and prevents internal moisture from evaporating, keeping skin hydrated for extended periods.
(*5) Based on the properties of the ingredient
Wave-Shaped Sheet: The uniquely shaped sheet holds a generous amount of serum, allowing it to fit snugly into every contour of the face for even, thorough hydration.
Mildly Acidic Formula (pH 4.5–6.5): A pH 5.0 (±1) mildly acidic serum helps balance the skin's natural pH.
Vegan Formula / Skin Irritation Tested
Alcohol-Free / Oil-Free
Product: Ultra-Low Molecular Hyaluronic Acid Sheet Mask, 3 sheets — ¥825 (tax included)
Loft K-Cosme Festival 2026SS
Event Period: April 18, 2026 (Saturday) – May 29, 2026 (Friday)
The event is held at Loft stores across Japan. Please note that availability dates and product lineups may vary by store location.
