Round Lab Birch Juice Moisturizing Double Gel Mask 10 Sheets

Features

The Round Lab Birch Juice Moisturizing Double Gel Mask features an upgraded gelling sheet that combines an embossed sheet with a gel texture for a double-synergy effect. Designed to provide long-lasting hydration without drying out quickly, this sheet mask is crafted to deliver continuous moisture and a cooling feel to dry or overheated skin. For environmentally conscious packaging, the product box is made using FSC-certified paper printed with soy ink.

Benefits

This mask delivers intense hydration and soothing care to skin suffering from internal and surface dryness. It helps smooth rough skin texture, improves moisture retention even in extremely dry conditions, and provides an instant cooling effect to alleviate skin heat and irritation. Its moisturizing barrier helps lock in hydration to keep the skin feeling comfortable and hydrated for longer periods.

Main Ingredients and their effects

Inje Birch Tree Sap: Infused at 10,069ppm, it acts as a rich moisture source that hydrates dry skin and opens up hydration pathways.

10-Layer Hyaluronic Acid: A combination of ten different weights of hyaluronic acid, including Sodium Hyaluronate and Hydrolyzed Hyaluronic Acid, that delivers multi-layered hydration to deep skin layers.

Glyceryl Glucoside: Activates aquaporins within the skin to facilitate smooth moisture absorption and enhance hydration pathways.

Hydro Keep-Barrier: Helps fortify the skin's moisture barrier to prevent water loss caused by external irritants.

Soothing Cooler: A patented ingredient featuring natural botanical extracts, including Aloe Vera Leaf Extract, Kelp Extract, Yam Root Extract, Elm Root Extract, and Violet Flower Extract, designed to reduce skin heat and deliver immediate cooling relief.

Certifications and Awards

The sheet mask holds a Vegan certification from the Korea Agency of Vegan Certification and Services and is OEKO-TEX STANDARD 100 certified. It has also received an Excellent rating from Germany's Dermatest patch test.

Clinical Test Results

In clinical evaluation tests, application of the mask demonstrated an immediate skin temperature reduction of -10.56°C (-10°C cooling effect). Skin hydration tests showed a 343.4% improvement in skin moisture immediately after a single use. In dry environment testing after 20 minutes of application, skin moisture retention improved by 100.5%. Furthermore, a 4-layer moisture barrier test revealed a 96.80% improvement in surface hydration, alongside deep moisture improvements of 9.98% at 0.5mm, 9.36% at 1.5mm, and 6.18% at 2.5mm depth. Primary skin irritation tests conducted by the Korea Institute of Dermatological Sciences on 33 adult subjects confirmed that the product is skin irritation tested.