SPF Scout · Product record

ROUND LAB Round Lab Birch Juice Mild-Up UVLOCK Sunscreen SPF50 Broad Spectrum

SPF 50 as labeled

U.S. formulation · record last retrieved 5 August 2026

What is listed

The ingredient declaration stored for this formulation, reproduced exactly as it was recorded from the source below.

Zinc Oxide, Water, Cyclohexasiloxane, Butyloctyl Salicylate, Propanediol, Propylheptyl Caprylate, Isododecane, Caprylyl Methicone, Polyglycery-3 Polydimethylsiloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Disteardimonium Hectorite, Magnesium Sulfate, Triethoxycaprylysilane, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Polymethylsilsesquioxane, Lauryl Polyglyceryl-3 Polydimethyisiloxyethyl Dimethicone, Butylene Glycol, Betula Platyphylla Japonica Juice, Glyceryl Caprylate, Caprylyl Glycol, Ethylhexy glycerin, Artemisia Ánnua Extract, Anthemis Nobilis Flower Oil, Sodium Hyaluronate, Pinus Sylvestris Leaf Oil, Glycerin, Nelumbo Nucifera Leaf Extract, Cryptomeria Japonica Leaf Extract, Saccharomyces Ferment Filtrate, Tocopherol, Glyceryl Glucoside, Hyaluronic Acid, Ascorbic Acid

35 entries · the stored declaration is recorded as complete.

What each ingredient generally does

Each entry that matched a canonical ingredient, with the function recorded for it. These notes describe the role an ingredient plays in a formulation. They do not assess an ingredient.

  • Zinc Oxide

    Bulking agent (adds volume)Colorant (adds colour)Light stabiliser (protects the formula from light)Oral care (CosIng functional class)Preservative (inhibits microbial growth)Skin protecting (CosIng functional class)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    A mineral UV filter that absorbs ultraviolet light, the core sun-protection job in this product. It also helps protect the skin surface and can add whiteness or opacity. On some labels it appears as CI 77947 when used for colour.

  • Water

    Antiplaque (CosIng functional class)otherSkin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    The base liquid that most of the other ingredients dissolve or spread into. It carries the formula and helps condition the skin surface.

  • Cyclohexasiloxane

    Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    This is a lightweight silicone that softens and smooths skin feel and also conditions hair. It works as a solvent too, helping other ingredients dissolve and the product spread easily.

  • Butyloctyl Salicylate

    Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    A liquid that conditions skin and hair and acts as a solvent. It softens skin feel and helps dissolve and spread other ingredients in the mix.

  • Propanediol

    Humectant (holds moisture)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)

    A solvent that dissolves other ingredients and helps them blend evenly. It also adjusts the thickness of the formula.

  • Propylheptyl Caprylate

    Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)

    An emollient, meaning it softens and smooths the skin feel. It helps the product glide on smoothly.

  • Isododecane

    Emollient (softens and smooths skin)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    A light fluid that acts as a solvent, keeping other ingredients dissolved and evenly blended. It also softens skin feel and can carry fragrance. It leaves a quick, non-heavy finish as it spreads.

  • Caprylyl Methicone

    Skin conditioning (CosIng functional class)

    A silicone-type skin-conditioning ingredient. It helps leave skin feeling smooth and conditioned.

  • Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

    Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Surfactant (cleanses or mixes oil and water)

    A silicone-based conditioning ingredient for skin and hair. It works to soften and smooth the feel of skin and hair.

    listed as “Polyglycery-3 Polydimethylsiloxyethyl Dimethicone”

  • Methyl Methacrylate Crosspolymer

    Film forming (leaves a thin coating)

    A film-forming polymer that leaves a thin, even layer on the skin as the product sets.

  • Methyl Trimethicone

    Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    Methyl Trimethicone is a lightweight silicone that conditions skin and hair and acts as a solvent to dissolve other ingredients. It helps the product spread and feel smooth.

  • Disteardimonium Hectorite

    Light stabiliser (protects the formula from light)Viscosity control (thickens or thins the formula)

    A thickener that adjusts how thick or thin the product is. It also works as a light stabilizer, helping the formula hold up against light exposure.

  • Magnesium Sulfate

    Bulking agent (adds volume)

    Magnesium Sulfate is a mineral salt used to add bulk to the formula. It helps fill out the product's body and texture.

  • Triethoxycaprylylsilane

    Binder (holds the formula together)other

    A binding ingredient that helps hold the parts of the formula together. It is often used to coat and bind powders in a mix.

    listed as “Triethoxycaprylysilane”

  • 1,2-Hexanediol

    Humectant (holds moisture)Preservative (inhibits microbial growth)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    A fluid that acts as a solvent, dissolving other ingredients so they blend evenly. It also conditions the skin, leaving it feeling smooth.

  • Polyglyceryl-2 Dipolyhydroxystearate

    Skin conditioning (CosIng functional class)

    Polyglyceryl-2 Dipolyhydroxystearate is a skin-conditioning ingredient. It helps soften and smooth the feel of the skin.

  • Polymethylsilsesquioxane

    Opacifier (makes the formula less see-through)

    This is an opacifier, meaning it makes the product look less see-through. It gives the formula a more solid, opaque appearance.

  • Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

    Hair conditioning (CosIng functional class)Skin conditioning (CosIng functional class)Surfactant (cleanses or mixes oil and water)

    A silicone-based ingredient that cleanses and conditions. It lifts away oil and dirt while helping skin and hair feel smooth.

    listed as “Lauryl Polyglyceryl-3 Polydimethyisiloxyethyl Dimethicone”

  • Butylene Glycol

    Fragrance ingredient (scent)Humectant (holds moisture)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)

    A multitasking liquid that acts as a humectant, solvent, and thickness adjuster, and carries a scent role. It draws in and holds moisture, dissolves other ingredients, and helps set the product's texture.

  • Betula Platyphylla Japonica Juice

    Skin conditioning (CosIng functional class)

    This is the sap from the white birch tree, used as a skin conditioner. That means it helps the product leave skin feeling softer and better maintained.

  • Glyceryl Caprylate

    Deodorant (masks or reduces odour)Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Surfactant (cleanses or mixes oil and water)

    Glyceryl Caprylate softens and smooths skin feel while helping oil and water stay mixed. It also works as a deodorant in the formula.

  • Caprylyl Glycol

    Deodorant (masks or reduces odour)Emollient (softens and smooths skin)Hair conditioning (CosIng functional class)Preservative (inhibits microbial growth)Skin conditioning (CosIng functional class)

    A multi-tasker that conditions skin and hair and acts as a deodorant. As an emollient it softens and smooths, leaving skin feeling conditioned.

  • Ethylhexylglycerin

    Deodorant (masks or reduces odour)Preservative (inhibits microbial growth)Skin conditioning (CosIng functional class)

    A multi-tasker that conditions the skin and works as a deodorant agent. It helps improve skin feel while cutting odor.

    listed as “Ethylhexy glycerin”

  • Artemisia Annua Extract

    Fragrance ingredient (scent)

    This is an extract of the sweet wormwood herb. It's used as a fragrance to give the product a scent.

    listed as “Artemisia Ánnua Extract”

  • Anthemis Nobilis Flower Oil

    Fragrance ingredient (scent)Skin conditioning (CosIng functional class)

    This is a scented oil that adds fragrance and also conditions the skin. It gives the product its aroma while helping skin feel conditioned. On labels it may also appear as Roman Chamomile Oil.

  • Sodium Hyaluronate

    Humectant (holds moisture)Skin conditioning (CosIng functional class)

    A moisture-grabbing ingredient that draws in and holds water. That keeps skin conditioned and helps it feel supple. It's the salt form of hyaluronic acid.

  • Pinus Sylvestris Leaf Oil

    Fragrance ingredient (scent)

    An oil from Scotch pine needles, used as a fragrance. Its job is to give the product its scent.

  • Glycerin

    Denaturant (makes alcohol undrinkable)Fragrance ingredient (scent)Hair conditioning (CosIng functional class)Humectant (holds moisture)Oral care (CosIng functional class)Skin conditioning (CosIng functional class)Skin protecting (CosIng functional class)Solvent (dissolves other ingredients)Viscosity control (thickens or thins the formula)

    Glycerin draws in and holds moisture while conditioning and protecting skin. It also dissolves other ingredients, adjusts thickness, and can add scent. On labels it may appear as glycerol.

  • Nelumbo Nucifera Leaf Extract

    Skin conditioning (CosIng functional class)

    This is an extract from lotus leaves used as a skin conditioner. It helps keep skin feeling soft and smooth.

  • Cryptomeria Japonica Leaf Extract

    Humectant (holds moisture)

    An extract from Japanese cedar leaf used as a humectant. That means it draws in and holds moisture in the product.

  • Saccharomyces Ferment Filtrate

    Humectant (holds moisture)

    A filtered liquid from fermented yeast that works as a humectant, meaning it draws in and holds moisture. This helps keep the skin and product from drying out.

  • Tocopherol

    Antioxidant (slows the formula oxidising)Fragrance ingredient (scent)Occlusive (CosIng functional class)otherSkin conditioning (CosIng functional class)

    Tocopherol is a form of vitamin E used as an antioxidant, which helps keep the formula from going off. It also conditions skin and forms a thin surface layer that slows moisture loss. You may see it listed simply as vitamin E.

  • Glyceryl Glucoside

    Humectant (holds moisture)Skin conditioning (CosIng functional class)

    Glyceryl Glucoside is a humectant, meaning it draws in and holds moisture. It helps keep the product from drying out and conditions the skin.

  • Sodium Hyaluronate

    Humectant (holds moisture)Skin conditioning (CosIng functional class)

    A moisture-grabbing ingredient that draws in and holds water. That keeps skin conditioned and helps it feel supple. It's the salt form of hyaluronic acid.

    listed as “Hyaluronic Acid”

  • Ascorbic Acid

    Antioxidant (slows the formula oxidising)Buffering (holds the formula at a set acidity)Fragrance ingredient (scent)Skin conditioning (CosIng functional class)

    Ascorbic Acid is vitamin C, used here mainly as an antioxidant to protect the formula from going off. It also conditions the skin, adjusts the acidity balance, and can add scent.

Checking this against your own list

SPF Scout's Personal Ingredient Check runs in the app, on your device. This page cannot see a personal avoidance list. Your selections are stored on your phone and are never sent to this website — there is nowhere on our side for them to go.

In the app you choose the ingredients you already avoid, and every entry in this declaration that matches one of them is shown to you with the alias path that produced the match.

This comparison does not predict whether your skin will react.

Source quality

Source
DailyMed drug label
Source record
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=1e7cc417-3c57-c87c-e063-6394a90a670b
Retrieved
5 August 2026
Market
United States
Formulation date
Not recorded
Version
v2 of this U.S. formulation
Verification confidence
High
Entries recorded
35
Record checksum
sha256:eebe536e6f358901bd2c87982ad85ab7e42262cc85b5fb6246e77692ac926a81

Earlier readings of this document

We have read this product's source document twice, and kept each reading. The earlier reading is ours: a change in how we read the document, not a change the manufacturer made to the formula.

Always compare this record with your current package.

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