ROUND LAB Birch Juice Moisturizing Sunscreen SPF 50+ PA++++ — Efficacy 4.5/5.0, Safety 3.8/5.0 | DemythSkin
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[ DemythSkin Verdict ]
ROUND LAB Birch Juice Moisturizing Sunscreen SPF 50+ PA++++

ROUND LAB Birch Juice Moisturizing Sunscreen SPF 50+ PA++++

SunscreenSun Protection
Efficacy
Exceptional
4.5 / 5.0
Safety
Mostly Safe
3.8 / 5.0
System Verdict
Elegant filters, great hydration, but the fragrance and denatured alcohol keep this from being a truly skin‑universal daily sunscreen. Efficacy is high thanks to a modern, photostable filter combo (DHHB, Ethylhexyl Triazone, MBBT, Diethylhexyl Butamido Triazone) in the top of the INCI, giving robust UVA/UVB protection, plus A Tier support actives like niacinamide, birch sap, multiple hyaluronic acid forms, and soothing glycyrrhizate/allantoin that realistically contribute to hydration and barrier support even at mid‑INCI positions. However, S Tier antioxidants (ascorbic acid, tocopherol) sit very low in the list and are likely at trace levels, so they do not justify any ‘vitamin C serum’ expectations, and the inclusion of chamomile flower oil and t‑butyl alcohol (D Tier potential irritants) meaningfully lowers the safety and keeps the overall score below the 4.5–5.0 range.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Diethylamino Hydroxybenzoyl Hexyl BenzoateEthylhexyl TriazoneMethylene Bis-Benzotriazolyl TetramethylbutylphenolAscorbic Acid
A Tier: Good BasicsProven Results
WaterNiacinamideGlycerinSodium HyaluronateHydrolyzed Hyaluronic AcidAllantoinAdenosineTocopherol
B Tier: Supporting IngredientsPromising Ingredients
Dibutyl AdipatePropanediolPolymethylsilsesquioxaneCoco-Caprylate/CaprateCaprylyl MethiconeDiethylhexyl Butamido Triazone1,2-HexanediolButylene GlycolGlyceryl GlucosideDipotassium GlycyrrhizateAcrylates/C10-30 Alkyl Acrylate CrosspolymerSodium Stearoyl GlutamatePolyacrylate Crosspolymer-6Pentylene GlycolBehenyl AlcoholPoly C10-30 Alkyl AcrylatePolyglyceryl-3 Methylglucose DistearateDecyl GlucosideTromethamineXanthan GumCarbomer
C Tier: Marketing IdolsHype | Limited or Weak Data
Betula Platyphylla Japonica JuicePortulaca Oleracea ExtractArtemisia Annua ExtractPinus Sylvestris Leaf Extract
D Tier: Potential IrritantsBe Cautious
Chamomilla Recutita Flower OilEthylhexylglycerinT-Butyl Alcohol
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.