Round Lab Birch Juice Moisturizing UVLock SPF — Efficacy 4.1/5.0, Safety 4.2/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Round Lab Birch Juice Moisturizing UVLock SPF
ROUND LAB

Round Lab Birch Juice Moisturizing UVLock SPF

SunscreenSun Protection
Efficacy
Strong
4.1 / 5.0
Safety
Mostly Safe
4.2 / 5.0
System Verdict
This is a cosmetically elegant, filter-dense daily sunscreen with real brightening and hydrating support—but fragranced essential oils keep it from being a universal no-brainer. Efficacy is driven by a solid trio of modern chemical filters (avobenzone, homosalate, octisalate) plus photostabilizers and emollient solvents for good UVA/UVB coverage and wear, while niacinamide in the upper INCI and a robust humectant system (glycerin, multiple glycols, hyaluronic acid forms, birch sap) provide genuine brightening and moisture benefits in a leave-on format; the absence of cutting-edge long‑wave UVA filters or very high-filter load keeps this more in the strong daily-use zone than the maximal photo-protection tier.
Active Ingredients Detected
A Tier: Good BasicsProven Results
TocopherolNiacinamideAvobenzoneHomosalateOctisalateGlycerinSodium HyaluronateHyaluronic AcidAllantoin
B Tier: Supporting IngredientsPromising Ingredients
Butyloctyl SalicylatePoly C10-30 Alkyl AcrylateGlyceryl GlucosideGlyceryl PolymethacrylateTriethoxycaprylylsilaneBiosaccharide Gum-1Benzotriazolyl Dodecyl p-CresolDiethylhexyl 2,6-NaphthalatePolymethylsilsesquioxane
C Tier: Marketing IdolsHype | Limited or Weak Data
Sparassis Crispa ExtractBetula Platyphylla Japonica JuiceArtemisia Annua ExtractPortulaca Oleracea Extract
D Tier: Potential IrritantsBe Cautious
Anthemis Nobilis Flower OilPinus Sylvestris Leaf Oil
What Each Ingredient Does
Water
solvent base
Acrylates Copolymer
film-forming polymer
Caprylyl Methicone
lightweight emollient silicone
Sparassis Crispa Extract
botanical soothing extract
Tocopherol
antioxidant (vitamin E)
Niacinamide
brightening and barrier support
Polyglyceryl-3 Distearate
emulsifier
Avobenzone
UVA chemical filter
Homosalate
UVB chemical filter
Calcium Aluminum Borosilicate
texture and slip enhancer
1,2-Hexanediol
solvent and preservative booster
Octisalate
UVB chemical filter
Butyloctyl Salicylate
emollient and solvent for filters
Poly C10-30 Alkyl Acrylate
film-forming / thickening polymer
Cetearyl Alcohol
fatty alcohol emollient
Tromethamine
pH adjuster
Glyceryl Stearate Citrate
emulsifier
Betula Platyphylla Japonica Juice
humectant birch sap extract
Artemisia Annua Extract
botanical soothing extract
Anthemis Nobilis Flower Oil
chamomile essential oil fragrance
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
gel-forming thickener
Glycerin
humectant moisturizer
Butylene Glycol
humectant and solvent
Sodium Hyaluronate
humectant hyaluronic acid salt
Full Ingredient List (INCI)

WATER, ACRYLATES COPOLYMER, CAPRYLYL METHICONE, SPARASSIS CRISPA EXTRACT, TOCOPHEROL (VITAMIN E), NIACINAMIDE,POLYGLYCERYL-3 DISTEARATEAVOBENZONE, HOMOSALATE, CALCIUM ALUMINUM BOROSILICATE, 1,2-HEXANEDIOL, OCTISALATE, BUTYLOCTYL SALICYLATE, POLY C10-30 ALKYL ACRYLATE, CETEARYL ALCOHOL, TROMETHAMINE, GLYCERYL STEARATE CITRATE, BETULA PLATYPHYLLA JAPONICA JUICE, ARTEMISIA ANNUA EXTRACT, ANTHEMIS NOBILIS FLOWER OIL, ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, GLYCERIN, BUTYLENE GLYCOL, SODIUM HYALURONATE, CARBOMER, ETHYLHEXYLGLYCERIN, HYALURONIC ACID, GLYCERYL GLUCOSIDE, PROPANEDIOL, PINUS SYLVESTRIS LEAF OIL, ALLANTOIN, PORTULACA OLERACEA EXTRACT, SODIUM STEAROYL GLUTAMATE, GLYCERYL POLYMETHACRYLATE, TRIETHOXYCAPRYLYLSILANE, PENTYLENE GLYCOL, METHYLPROPANEDIOL, BIOSACCHARIDE GUM-1, BENZOTRIAZOLYL DODECYL P-CRESOL, DIETHYLHEXYL 2,6-NAPHTHALATE, POLYMETHYLSILSESQUIOXANE About Birch Trees Queen of the Forest Birch Trees are refreshingly tall, snow white, and has been nicknamed

Frequently Asked

Is Round Lab Birch Juice Moisturizing UVLock SPF worth it?

Round Lab Birch Juice Moisturizing UVLock SPF scores 4.1 out of 5.0 for efficacy (Strong) and 4.2 out of 5.0 for safety (Mostly Safe) on DemythSkin's independent ingredient analysis. This is a cosmetically elegant, filter-dense daily sunscreen with real brightening and hydrating support—but fragranced essential oils keep it from being a universal no-brainer. Efficacy is driven by a solid trio of mode

What are the key active ingredients in Round Lab Birch Juice Moisturizing UVLock SPF?

Round Lab Birch Juice Moisturizing UVLock SPF contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does Round Lab Birch Juice Moisturizing UVLock SPF contain fragrance or known irritants?

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

How is Round Lab Birch Juice Moisturizing UVLock SPF 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.