Birch Juice Moisturizing UVLock Sunscreen SPF 45
The Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 is a emulsion. Our analysis of its 44 ingredients (38 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
The Round Lab Birch Juice Moisturizing UVLock Sunscreen SPF 45 is a emulsion. Our analysis of its 44 ingredients (38 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Butyl Methoxydibenzoylmethane
(Uv Absorber, Uv Filter) |
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Homosalate
(Fragrance, Sunscreen Agent, Uv Absorber, Skin Conditioning, Uv Filter) |
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Ethylhexyl Salicylate
(Uv Absorber, Uv Filter) |
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Water
(Solvent) |
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Butyloctyl Salicylate
(Hair Conditioning, Skin Conditioning, Solvent) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Acrylates Copolymer
(Adhesive, Artificial Nail Builder, Binding Agent, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Caprylyl Methicone
(Skin Conditioning) |
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Polyglyceryl-3 Distearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Benzotriazolyl Dodecyl p-Cresol
(Uv Absorber) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Diethylhexyl 2,6-Naphthalate
(Skin Conditioning, Emollient, Solvent, Uv Absorber) |
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Polymethylsilsesquioxane
(Opacifying) |
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Calcium Aluminum Borosilicate
(Bulking Agent) |
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1,2-Hexanediol
(Solvent) |
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Poly C10-30 Alkyl Acrylate
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling) |
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Tromethamine
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
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Methylpropanediol
(Solvent) |
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Glyceryl Stearate Citrate
(Skin Conditioning, Emollient, Emulsifying) |
Fungal Acne Trigger
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Betula Platyphylla Japonica Juice
(Skin Conditioning) |
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Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling) |
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Artemisia Annua Extract
(Masking) |
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Anthemis Nobilis Flower Oil
(Masking, Perfuming, Skin Conditioning) |
Good for Sensitive Skin
Good for Dry Skin
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Sodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent, Emulsifying) |
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Glyceryl Polymethacrylate
(Film Forming, Viscosity Controlling) |
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Triethoxycaprylylsilane
(Binding Agent, Binding) |
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Pinus Sylvestris Leaf Oil
(Masking) |
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Sparassis Crispa Extract
(Emulsion Stabilising, Hair Conditioning, Humectant, Skin Conditioning) |
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Polyether-1
(Viscosity Increasing Agent, Viscosity Controlling) |
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Allantoin
(Skin Conditioning, Skin Protecting, Soothing) |
Good for Oily Skin
Good for Sensitive Skin
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Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling) |
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Glyceryl Glucoside
(Humectant, Skin Conditioning) |
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Biosaccharide Gum-1
(Skin Conditioning) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Portulaca Oleracea Extract
(Skin Conditioning) |
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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Hyaluronic Acid
(Skin Conditioning, Viscosity Increasing Agent, Antistatic Agent, Humectant, Moisturising) |
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ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning) |
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How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
ASCORBIC ACID
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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