SPF Scout · Product record

Deciem The Ordinary UV Filters SPF 45 Serum

SPF 45 as labeled

U.S. formulation · record last retrieved 14 August 2026

What is listed

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

Octocrylene, Octisalate, Homosalate, Avobenzone, Aqua, Behenyl Acrylate Polymer, Biosaccharide Gum-2, Butyloctyl Salicylate, Chlorphenesin, Diethylhexyl 2,6-Naphthalate, Dimethicone/Vinyl Dimethicone Crosspolymer (Soft Particle), Glycerin, Isododecane, Magnesium Sulfate, N-Acetylcarnosine, p-Anisic Acid, Pentylene Glycol, Phenoxyethanol, Propanediol, Sodium Citrate, Soy Phospholipids, Tocopherol, Tri(Polyglyceryl-3/Lauryl)Hydrogenated Trilinoleate, Trisodium Ethylenediamine Disuccinate

24 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.

  • Octocrylene

    Light stabiliser (protects the formula from light)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    An organic UV filter that absorbs ultraviolet light. It also serves as a light stabilizer, helping keep other filters and the formula intact under sunlight.

  • Octisalate

    Light stabiliser (protects the formula from light)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    An organic UV filter that absorbs ultraviolet light, and doubles as a light stabilizer to keep the formula steady in sun. It also appears on labels as Ethylhexyl Salicylate.

  • Homosalate

    Fragrance ingredient (scent)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    An organic UV filter that absorbs ultraviolet light. It also adds scent to the product.

  • Avobenzone

    Light stabiliser (protects the formula from light)UV absorber (protects the formula from light, not a sunscreen filter)UV filter (filters UV rays)

    An organic UV filter that absorbs ultraviolet light. It also acts as a light stabilizer, helping the formula hold up under sun exposure. On labels it also appears as Butyl Methoxydibenzoylmethane.

  • 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.

    listed as “Aqua”

  • Behenyl Acrylate Polymer

    other

    No reviewed note yet.

  • Biosaccharide Gum-2

    Skin conditioning (CosIng functional class)

    Biosaccharide Gum-2 is a sugar-based ingredient that conditions the skin, helping it feel soft and smooth.

  • 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.

  • Chlorphenesin

    Preservative (inhibits microbial growth)

    This is a preservative that fights microbes. It helps keep the product from spoiling as bacteria and other organisms try to grow in it.

  • Diethylhexyl 2,6-Naphthalate

    Emollient (softens and smooths skin)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)UV absorber (protects the formula from light, not a sunscreen filter)

    An emollient and solvent that improves spreadability and helps stabilize light-sensitive ingredients in the formula.

  • Dimethicone/Vinyl Dimethicone Crosspolymer

    otherSkin conditioning (CosIng functional class)Viscosity control (thickens or thins the formula)

    A silicone elastomer that softens and smooths skin feel and adjusts the thickness of the product. In practice it gives a silky, cushioned texture.

    listed as “Dimethicone/Vinyl Dimethicone Crosspolymer (Soft Particle)”

  • 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.

  • 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.

  • 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.

  • Acetyl Carnosine

    Skin protecting (CosIng functional class)

    Acetyl Carnosine is a skin-protecting ingredient. It helps shield the skin's surface from outside factors.

    listed as “N-Acetylcarnosine”

  • P-Anisic Acid

    Fragrance ingredient (scent)

    This is a fragrance ingredient. It adds or adjusts the product's scent.

  • Pentylene Glycol

    Humectant (holds moisture)Skin conditioning (CosIng functional class)Solvent (dissolves other ingredients)

    A skin-conditioning ingredient that also works as a solvent. It helps dissolve other ingredients and keeps skin feeling conditioned.

  • Phenoxyethanol

    Preservative (inhibits microbial growth)

    This is a preservative that fights microbes. It helps keep the product from spoiling over time.

  • 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.

  • Sodium Citrate

    Buffering (holds the formula at a set acidity)Chelating (binds metal ions in the formula)Fragrance ingredient (scent)

    A buffering agent that keeps the product's acidity steady. It also binds trace metals that would otherwise spoil the formula.

  • Soybean Lecithin

    other

    No reviewed note yet.

    listed as “Soy Phospholipids”

  • 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.

  • Tri (Polyglyceryl-3/Lauryl) Hydrogenated Trilinoleate

    Surfactant (cleanses or mixes oil and water)

    An emulsifier, meaning it helps oil and water mix. This keeps the oil and water parts of the product blended together into one smooth formula.

    listed as “Tri(Polyglyceryl-3/Lauryl)Hydrogenated Trilinoleate”

  • Trisodium Ethylenediamine Disuccinate

    Chelating (binds metal ions in the formula)other

    This is a chelating agent. It binds trace metals in the mix that could break the formula down over time.

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=10cde253-26ee-b97d-e063-6394a90a8302
Retrieved
14 August 2026
Market
United States
Version
v1 of this U.S. formulation
Source tier
Official label document (not independently verified by us)
Entries recorded
24
Record checksum
sha256:bd83a3f514709c1cf8415a5bb338e7f5af6c1a96e2e9d02a897796ae454dc391

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