Round Lab
Birch Juice Deep Hydration
Round Lab is the brand to reach for when skin needs deep, lasting hydration from a clean source. Their birch juice line pairs birch sap with hyaluronic acid in simple, fragrance-free formulas.
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Why Round Lab?
Round Lab builds its lines around ingredients from the Korean peninsula, such as birch sap and deep sea water from Dokdo. Their birch juice line puts birch sap at the center of every formula, and the brand has grown from a small Korean start-up into a staple of US K-Beauty shelves.
Founded
2017
Products
6
editor picks
Best For
The Best Round Lab Products
Curated by our editorial team. Each product is chosen for formulation quality and ingredient evidence — not affiliate commission rates.
Birch Juice Serum
~$20
Sold by HeySkinday, a third-party sellerShop Now →
Birch Juice Moisturizing Toner
~$19
Sold by HeySkinday, a third-party sellerShop Now →
Birch Juice Moisturizing Cream
~$39
Sold by ROUNDLAB OFFICIAL, a third-party sellerLinked listing: 80ml jar plus an 80ml refill.Shop Now →
1025 Dokdo Toner
~$27
Sold by ROUNDLAB OFFICIAL, a third-party sellerLinked size: 500ml (16.9oz).Shop Now →
Soybean Serum
~$22
Sold by HeySkinday, a third-party sellerRound Lab now sells this as Soybean Serum.Shop Now →
Birch Juice Moisturizing Sun Serum SPF 50
~$25
Sold by ROUNDLAB OFFICIAL, a third-party sellerReplaces the Dokdo Sunscreen, which we couldn't find on Amazon.Shop Now →Prices last checked on September 27, 2026 and rounded to the dollar. Amazon prices change often; the price shown at checkout is the one that applies.
Ingredient Science, Explained
Birch Juice Serum
Birch Juice + Vita Hyaluronic Acid, Alcohol- and Fragrance-FreeA light hydrating serum built on birch juice and Round Lab's Vita Hyaluronic Acid, free of alcohol, fragrance and essential oils — an easy daily humectant layer for sensitive skin.
Shop Now →Birch Juice Moisturizing Toner
Birch Juice (1%) + Vita Hyaluronic Acid + Sodium HyaluronateA watery, unscented toner with birch juice (listed at 10,000 ppm, or 1%) and hyaluronic acid for a first layer of hydration after cleansing.
Shop Now →Birch Juice Moisturizing Cream
Birch Sap + Vita Hyaluronic Acid + Glyceryl Glucoside + Moisture CapsulesBirch sap and Vita Hyaluronic Acid hydrate while glyceryl glucoside and burst-on-contact moisture capsules help keep skin moist; Round Lab says it's suitable for acne-prone and sensitive skin.
Shop Now →1025 Dokdo Toner
Deep Sea Water + Panthenol + Allantoin + Betaine, Gentle ExfoliationA watery toner that gently exfoliates while hydrating, made with deep sea water and soothing panthenol, allantoin and betaine. Round Lab also positions it for oil control, which makes it a good match for combination skin.
Shop Now →Round Lab Routine Guide
How to layer these products for maximum results
1025 Dokdo Toner
Gentle exfoliating toner after cleansing
Birch Juice Serum
Primary humectant step
Birch Juice Moisturizing Sun Serum SPF 50
Final step — layers well over the serum
Birch Juice Moisturizing Toner
Reset skin after PM cleanse
Soybean Serum
Nourishing treatment — focus on fine lines
Birch Juice Moisturizing Cream
Seal the night routine
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