Round Lab
Round Lab Birch Juice Moisturizing Double Gel Mask
Ingredient analysis and how the ad lines read
Read on 2026-09-21
What is this product?
A hydration-first gel sheet mask built around Betula Platyphylla Japonica Juice at 10,069ppm and eight forms of hyaluronate, with no added fragrance or drying alcohol listed. It suits dehydrated skin wanting a lightweight, watery moisture boost.
What makes it different?
Betula Platyphylla Japonica Juice appears at position 6 with a printed 10,069ppm concentration, an unusually transparent numeric disclosure for this brand. The formula stacks hyaluronate variants from item 16 through item 32, spanning surface-binding and low-molecular forms, alongside Laminaria Japonica Extract and Tremella Fuciformis Sporocarp Extract. The list is free of added fragrance, essential oils, and drying alcohols, which favors reactive skin.
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 ingredient
- Water
- Propanediol
- Glycerin
- Butylene Glycol
- 1,2-Hexanediol
- Betula Platyphylla Japonica Juice
- Arginine
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Allantoin
- Ethylhexylglycerin
- Carbomer
- Disodium EDTA
- Sodium Polyacrylate
- Glyceryl Glucoside
- Glyceryl Caprylate
- Sodium Hyaluronate
- Laminaria Japonica Extract
- Tremella Fuciformis Sporocarp Extract
- Ulmus Davidiana Root Extract
- Viola Mandshurica Flower Extract
- Dioscorea Japonica Root Extract
- Aloe Barbadensis Leaf Extract
- Caprylic Acid
- Hydroxypropyltrimonium Hyaluronate
- Tocopherol
- Betulin
- Hydrolyzed Hyaluronic Acid
- Sodium Acetylated Hyaluronate
- Hyaluronic Acid
- Sodium Hyaluronate Crosspolymer
- Hydrolyzed Sodium Hyaluronate
- Potassium Hyaluronate
Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.
Did the ad claims hold up?
We checked the one line this product advertises against the ingredient list and public documents. All of them hold up.
Claims translated from Korean, originals preserved.
backed by evidence1
- Birch Water Double Gel Mask (10 sheets), Mask,Gel sheet,Inje birch sap,Hyaluronic acid,Moist mask, Round Lab, Birch water
Korean original
자작나무 수분 더블 겔 마스크 (10매), 마스크,겔시트,인제자작나무수액,히알루론산,촉촉한수분마스크, 라운드랩, 자작나무 수분
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.