
ROUND LAB
Birch Juice Mild-Up UVLOCK SPF 50
Sunscreen · 36 ingredients · South Korea
ROUND LAB Birch Juice Mild-Up UVLOCK SPF 50 is a gentle physical sunscreen that provides broad-spectrum protection while calming and protecting sensitive skin. Infused with Birch sap and Vita Hyaluronic Acid, it hydrates and shields the skin from UV damage, promoting a healthier complexion.

ROUND LAB
Birch Juice Moisturizing UVLOCK SPF 45
Sunscreen · 47 ingredients · South Korea
ROUND LAB Birch Juice Moisturizing UVLOCK SPF 45 is Korea’s No.1 sunscreen, designed to meet US FDA standards! Made with the sap of Inje’s silver birch trees, full of cool, refreshing energy, and hyaluronic acid, it deeply hydrates and leaves skin dewy and healthy.
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Set your skin profileNo conflicts — safe to layer
Both are Sunscreen products.
Protection + repair
L-Ascorbic Acid
A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.
Hyaluronic Acid
Holds water in the skin for instant plumping and hydration.
SPF
A mineral filter that physically blocks the sun — gentle, good for sensitive skin.
Vitamin E
An antioxidant that protects the barrier and supercharges vitamin C.
Mugwort
A botanical that calms redness and soothes sensitive, reactive skin.
Anthemis Nobilis Flower Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Pinus Sylvestris Leaf Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Glycerin
The workhorse humectant — simple, effective, and exceptionally well-tolerated.
Saccharomyces Ferment
A fermented filtrate that hydrates, brightens, and strengthens the barrier.
L-Ascorbic Acid
A form of vitamin C — an antioxidant that brightens, fades dark spots, and supports collagen.
Niacinamide
Strengthens the barrier, controls oil, and fades dark spots — gentle and plays well with almost everything.
Hyaluronic Acid
Holds water in the skin for instant plumping and hydration.
Vitamin E
An antioxidant that protects the barrier and supercharges vitamin C.
Glycerin
The workhorse humectant — simple, effective, and exceptionally well-tolerated.
Mugwort
A botanical that calms redness and soothes sensitive, reactive skin.
Anthemis Nobilis Flower Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Pinus Sylvestris Leaf Oil
A nourishing plant oil that softens skin and helps seal in moisture.
Allantoin
Calms redness and smooths texture — buffers harsh actives beautifully.
Chemical UV Filter
A UV filter that protects skin from sun damage.
Hydration
Barrier
Brightening
Anti-aging
Soothing
Antioxidant
Protection
Hydration
Barrier
Brightening
Anti-aging
Texture
Pores
Oil control
Soothing
Antioxidant
Protection