A chemical sunscreen with SPF 50 and PA++++ protection, formulated with birch juice, niacinamide, and hyaluronic acid to hydrate and soothe while providing broad-spectrum UV coverage.
Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Ethylhexyl Triazone, Niacinamide, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Coco-Caprylate/Caprate, Caprylyl Methicone, Diethylhexyl Butamido Triazone, Glycerin, 1,2-Hexanediol, Butylene Glycol, Betula Platyphylla Japonica Juice(1,425Ppm), Sodium Hyaluronate, Hyaluronic Acid, Glyceryl Glucoside, Dipotassium Glycyrrhizate, Allantoin, Portulaca Oleracea Extract, Artemisia Annua Extract, Pinus Sylvestris Leaf Extract, Anthemis Nobilis Flower Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Ethylhexylglycerin, Ascorbic Acid, Adenosine, Pentylene Glycol, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Xanthan Gum, T-Butyl Alcohol
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Guru Score
The Guru Score: every expert's verdict on a product, in one simple number.
Under the score you'll see how many experts weighed in, or "Early verdict" while only a few have. Paid takes count for half in the score.
Guru Certified means at least 6 experts, a score of 85% or more, and almost no Nays.
How we score →Yay
19 experts · Strong agreementHeads up: 12 of the 19 experts here were paid by the brand, leaving 7 unpaid. We have kept this score cautious as a result.
What the gurus are saying
This sunscreen earns near-universal praise for feeling like a moisturizer rather than a typical sunscreen, lightweight, hydrating, and elegant without greasiness or white cast. The birch juice brings minerals and antioxidants that calm irritated and dry skin, and it layers beautifully under makeup or over serums without needing to strip back your routine. One caveat worth knowing: birch is a fairly common allergen, so anyone with sensitivity to botanicals or a history of plant-based reactions may want to patch-test first.
What they liked
What they flagged
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.
Source: DermNet
Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.
Source: DermNet
Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.
Source: DermNet
A chemical sunscreen with SPF 50 and PA++++ protection, formulated with birch juice, niacinamide, and hyaluronic acid to hydrate and soothe while providing broad-spectrum UV coverage.
Mostly yes. 17 of the 19 gurus who reviewed it give it their stamp of approval, for a Guru Score of 87%.
Round Lab Birch Juice Moisturizing Sunscreen SPF 50 PA++++ (Korean formula) holds a Guru Score of 87%. That is our read on how warmly the experts talk about it, based on the verdicts of 19 expert reviewers we have collected. It is also Guru Certified, our mark for products that hold broad approval across many expert reviewers.
Round Lab Birch Juice Moisturizing Sunscreen SPF 50 PA++++ (Korean formula) is generally suited to dry skin and sensitive skin.
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