In their definitive guide to the best Korean sunscreens, Allure names ROUND LAB's Birch Moisturizing Sunscreen UVLock SPF 45+ the Best for Dehydrated Skin. The editors praised the FDA-approved formula as one of the most elegant sunscreens they've ever tried — and board-certified dermatologists agree.
"It's a moisturizing sunscreen that is formulated with hyaluronic acid, glycerin, and antioxidants to hydrate and soothe the skin. It blends in easily and layers beautifully with other skin-care products and makeup."
— Dr. Claire Chang, board-certified dermatologist, New York City
Beyond its hydrating formula, the sunscreen features birch tree sap, panthenol, and purslane extract to calm the skin and help curb inflammation. Allure contributing commerce writer Christa Lee also shared her experience, noting that the sunscreen disappears instantly, leaves skin feeling hydrated thanks to the birch sap, and layers seamlessly — her only complaint being that it doesn't come in a jumbo size.
- Sunscreen Type: Chemical
- Key Ingredients: Avobenzone, homosalate, octisalate, birch tree sap, niacinamide, glycerin
- Best For: All skin types, especially dehydrated skin
- Fragrance-Free: Yes
If you're looking for a sunscreen that doubles as skincare — offering serious hydration, a weightless feel, and seamless layering under makeup — the Birch Moisturizing Sunscreen UVLock is a standout pick backed by both editors and dermatologists.
