C Day Serum UV SPF 50+
The Obagi C Day Serum UV SPF 50+ is a emulsion. Our analysis of its 47 ingredients (36 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Obagi C Day Serum UV SPF 50+ is a emulsion. Our analysis of its 47 ingredients (36 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Ethylhexyl Methoxycinnamate
(Uv Absorber, Uv Filter) |
Bad for Oily Skin
Bad for Sensitive Skin
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Diethylamino Hydroxybenzoyl Hexyl Benzoate
(Uv Absorber, Uv Filter) |
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Diethylhexyl Succinate
(Emollient, Film Forming, Plasticizer, Skin Conditioning, Solvent) |
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Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
(Skin Conditioning, Uv Absorber, Uv Filter) |
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Titanium Dioxide
(Cosmetic Colorant, Opacifying, Sunscreen Agent, Uv Absorber) |
Good for Sensitive Skin
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Ascorbyl Glucoside
(Antioxidant) |
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Behenyl Alcohol
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Emollient, Viscosity Controlling) |
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Glyceryl Ascorbate
(Antioxidant, Humectant) |
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Ascorbyl Tetraisopalmitate
(Antioxidant, Skin Conditioning, Emollient) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Saccharide Isomerate
(Humectant) |
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Centella Asiatica Extract
(Cleansing, Skin Conditioning, Smoothing, Soothing, Tonic) |
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Cynara Scolymus Leaf Extract
(Skin Conditioning) |
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Caesalpinia Spinosa Fruit Extract
(Skin Protecting) |
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Kappaphycus Alvarezii Extract
(Skin Conditioning) |
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Alumina
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Diphenyl Dimethicone/Vinyl Diphenyl Dimethicone/Silsesquioxane Crosspolymer
(Viscosity Controlling) |
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Citrus Grandis Fruit Extract
(Astringent, Perfuming, Skin Conditioning, Tonic) |
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Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent) |
Good for Oily Skin
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Phytosteryl Macadamiate
(Hair Conditioning, Skin Conditioning) |
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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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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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PEG-40 Stearate
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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Diphenylsiloxy Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning) |
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
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Mica
(Cosmetic Colorant, Opacifying) |
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Polyglyceryl-10 Pentastearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
(Emulsion Stabilising, Viscosity Controlling) |
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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Sodium Stearoyl Lactylate
(Emulsifying, Surfactant) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Microcrystalline Cellulose
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Emulsion Stabilising, Slip Modifier, Viscosity Increasing Agent) |
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Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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DNA
(Skin Conditioning) |
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Acacia Senegal Gum
(Adhesive, Fragrance, Film Forming, Masking) |
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Caprylhydroxamic Acid
(Chelating Agent) |
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Hydrogen Dimethicone
(Film Forming) |
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Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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PARFUM
(Fragrance, Perfuming) |
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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.
Ascorbyl Glucoside, Glyceryl Ascorbate, Ascorbyl Tetraisopalmitate
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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