Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ — Efficacy 3.9/5.0, Safety 4.0/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++
ROUND LAB

Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++

SunscreenSun Protection
Efficacy
Solid
3.9 / 5.0
Safety
Mostly Safe
4.0 / 5.0
System Verdict
This is a cosmetically elegant, well-hydrating chemical sunscreen with solid UV filters, but the essential oils and fragrance-adjacent botanicals drag down the safety score for sensitive skin. Efficacy is driven primarily by the proven UV filter trio (avobenzone for UVA plus homosalate and octisalate for UVB) in a supportive base rich in humectants (glycerin, multiple glycols, hyaluronic acid) and a meaningful niacinamide placement, giving reliable daily protection with light brightening and barrier support rather than any advanced treatment profile; safety is moderated by chamomile and pine essential oils and multiple botanicals, which add sensory appeal but increase irritation risk compared with cleaner, fragrance-free filters-and-humectants-only formulas.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Ascorbic Acid
A Tier: Good BasicsProven Results
NiacinamideGlycerinEthylhexyiglycerinAllantoinTocopherolSodium HyaluronateHyaluronic AcidAvobenzoneHomosalateOctisalate
B Tier: Supporting IngredientsPromising Ingredients
ButyloctySalicylateBenzotriazolyl Dodecyl P-CresolDiethylhexyl 2,6-NaphthalatePolymethylsilsesquioxanePoly C10-30 Alkyl AcrylateGlyceryl Polymetha-crylateTriethoxycaprylylsilanePolyether-1Glyceryl GlucosideBiosaccharide Gum-1
C Tier: Marketing IdolsHype | Limited or Weak Data
Betula Platyphylla Japonica JuiceArtemisia Annua ExtractSparassis Crispa ExtractPortulaca Oleracea Extract
D Tier: Potential IrritantsBe Cautious
Anthemis Nobilis Flower OilPinus Sylvestris Leaf Oil
What Each Ingredient Does
Water
solvent
Butylocty
emollient (likely typo fragment)
Salicylate
UV filter component
Propanediol
solvent and humectant
Acrylates Copolymer
film-former, texture agent
Butylene Glycol
humectant and solvent
Caprylyl Methicone
silicone emollient, spreadability
Polyglyceryl-3 Distearate
emulsifier
Benzotriazolyl Dodecyl P-Cresol
photostabilizer and antioxidant
Niacinamide
brightening and barrier-support active
Diethylhexyl 2,6-Naphthalate
UV filter solvent, photostabilizer
Polymethylsilsesquioxane
texture enhancer, blurring agent
Glycerin
core humectant
Calcium Aluminum Borosilicate
texture and optical effect agent
1,2-Hexanediol
solvent and preservative booster
Poly C10-30 Alkyl Acrylate
thickener and film-former
Pentylene Glycol
humectant and solvent
Cetearyl Alcohol
fatty alcohol emollient, stabilizer
Tromethamine
pH adjuster
Methylpropanediol
solvent and penetration enhancer
Glyceryl Stearate Citrate
emulsifier
Betula Platyphylla Japonica Juice
birch sap humectant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
gel-forming thickener
Carbomer
gel thickener
Full Ingredient List (INCI)

Water, Butylocty, Salicylate, Propanediol, Acrylates Copolymer, Butylene Glycol, Caprylyl Methicone, Polyglyceryl-3 Distearate, Benzotriazolyl Dodecyl P-Cresol, Niacinamide, Diethylhexyl 2,6-Naphthalate, Polymethylsilsesquioxane, Glycerin, Calcium Aluminum Borosilicate, 1,2-Hexanediol, Poly C10-30 Alkyl Acrylate, Pentylene Glycol, Cetearyl Alcohol, Tromethamine, Methylpropanediol, Glyceryl Stearate Citrate, Betula Platyphylla Japonica Juice, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Ethylhexyiglycerin, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Sodium Stearoyl Glutamate, Glyceryl Polymetha-crylate, Triethoxycaprylylsilane, Pinus Sylvestris Leaf Oil, Sparassis Crispa Extract, Polyether-1, Allantoin, Di-propylene Glycol, Glyceryl Glucoside, Biosaccharide Gum-1, Tocopherol, Portulaca Oleracea Extract, Sodium Hyaluronate, Hyaluronic Acid, Ascorbic Acid, Avobenzone, Homosalate, Octisalate.

Frequently Asked

Is Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ worth it?

Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ scores 3.9 out of 5.0 for efficacy (Solid) and 4.0 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. This is a cosmetically elegant, well-hydrating chemical sunscreen with solid UV filters, but the essential oils and fragrance-adjacent botanicals drag down the safety score for sensitive skin. Efficacy is driven primaril

What are the key active ingredients in Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++?

Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ contains these gold-standard actives with strong clinical evidence: Ascorbic Acid.

Does Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ contain fragrance or known irritants?

DemythSkin flags these ingredients in Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ as potential irritants: Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil.

How is Round Lab Birch Juice Moisturizing Sun Cream SPF 50+ PA++++ 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.