Round Lab Birch Juice Moisturizing Mild-Up Sunscreen — Efficacy 4.3/5.0, Safety 4.0/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Round Lab Birch Juice Moisturizing Mild-Up Sunscreen
ROUND LAB

Round Lab Birch Juice Moisturizing Mild-Up Sunscreen

SunscreenSun Protection
Efficacy
Strong
4.3 / 5.0
Safety
Mostly Safe
4.0 / 5.0
System Verdict
Solid everyday sunscreen base, but the extra botanicals and antioxidants are mostly window dressing. The efficacy score is driven by the mineral UV filter zinc oxide plus a silicone/ester base that should help spreadability and film formation; the added humectants can improve comfort, but the botanical extracts, ascorbic acid, and tocopherol are present too low to materially change performance, so they do not push this into elite territory.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Zinc OxideAscorbic Acid
A Tier: Good BasicsProven Results
Saccharomyces Ferment FiltrateSodium HyaluronateHyaluronic AcidGlycerinTocopherol
B Tier: Supporting IngredientsPromising Ingredients
Butyloctyl SalicylatePropylheptyl CaprylateMethyl Methacrylate CrosspolymerGlyceryl GlucosideTriethoxycaprylylsilaneGlyceryl CaprylatePolymethylsilsesquioxaneDisteardimonium HectoriteMagnesium Sulfate
C Tier: Marketing IdolsHype | Limited or Weak Data
Betula Platyphylla Japonica JuiceCryptomeria Japonica Leaf ExtractNelumbo Nucifera Leaf ExtractArtemisia Annua Extract
D Tier: Potential IrritantsBe Cautious
Anthemis Nobilis Flower OilPinus Sylvestris Leaf Oil
What Each Ingredient Does
Water
solvent
Zinc Oxide
mineral UV filter
Cyclohexasiloxane
volatile silicone emollient
Butyloctyl Salicylate
UV filter solvent
Propanediol
humectant solvent
Propylheptyl Caprylate
emollient ester
Isododecane
volatile emollient
Caprylyl Methicone
silicone slip agent
Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
silicone emulsifier
Methyl Methacrylate Crosspolymer
texture modifier
Methyl Trimethicone
silicone emollient
Betula Platyphylla Japonica Juice
botanical extract
Cryptomeria Japonica Leaf Extract
botanical extract
Nelumbo Nucifera Leaf Extract
botanical extract
Saccharomyces Ferment Filtrate
ferment filtrate
Glyceryl Glucoside
humectant
Sodium Hyaluronate
humectant
Hyaluronic Acid
humectant
Glycerin
humectant
Butylene Glycol
humectant solvent
Triethoxycaprylylsilane
pigment dispersant
Artemisia Annua Extract
botanical extract
Anthemis Nobilis Flower Oil
fragrance component
Pinus Sylvestris Leaf Oil
fragrance component
Full Ingredient List (INCI)

Apply a moderate amount on skin at the last stage of basic skincare. Major Ingredients Water, Zinc Oxide, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Isododecane, Caprylyl Methicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Betula Platyphylla Japonica Juice, Cryptomeria Japonica Leaf Extract, Nelumbo Nucifera Leaf Extract, Saccharomyces Ferment Filtrate, Glyceryl Glucoside, Sodium Hyaluronate, Hyaluronic Acid, Glycerin, Butylene Glycol, Triethoxycaprylylsilane, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil, Ethylhexylglycerin, Ascorbic Acid, Tocopherol, Glyceryl Caprylate, Caprylyl Glycol, Polymethylsilsesquioxane, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Disteardimonium Hectorite, Magnesium Sulfate Ingredients subject to change at manufacturer&

Frequently Asked

Is Round Lab Birch Juice Moisturizing Mild-Up Sunscreen worth it?

Round Lab Birch Juice Moisturizing Mild-Up Sunscreen scores 4.3 out of 5.0 for efficacy (Strong) and 4.0 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. Solid everyday sunscreen base, but the extra botanicals and antioxidants are mostly window dressing. The efficacy score is driven by the mineral UV filter zinc oxide plus a silicone/ester base that should help spreadabil

What are the key active ingredients in Round Lab Birch Juice Moisturizing Mild-Up Sunscreen?

Round Lab Birch Juice Moisturizing Mild-Up Sunscreen contains these gold-standard actives with strong clinical evidence: Zinc Oxide, Ascorbic Acid.

Does Round Lab Birch Juice Moisturizing Mild-Up Sunscreen contain fragrance or known irritants?

DemythSkin flags these ingredients in Round Lab Birch Juice Moisturizing Mild-Up Sunscreen as potential irritants: Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil.

How is Round Lab Birch Juice Moisturizing Mild-Up Sunscreen scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin

Analysis last updated: 2026-08-21. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.