Light Day Sunscreen Broad Spectrum SPF 37

Circadia

Light Day Sunscreen Broad Spectrum SPF 37

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About this product

The Circadia Light Day Sunscreen Broad Spectrum SPF 37 is a sunscreen. Our analysis of its 43 ingredients (31 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to dry skin.

Vegan-friendly

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
43
Low-risk
31
Fragrance
Fragrance-free
Origin
United States
SPF
37 · blocks 97.3% UVB
Data updated
Jun 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 12/9
Good for dry skin
C12-15 Alkyl Benzoate Glyceryl Distearate Glyceryl Stearate Isomalt Isohexadecane Caprylic/Capric Triglyceride Caprylyl Glycol Glycerin Cyclohexasiloxane Dimethicone Cyclopentasiloxane Lecithin
Caution for dry skin
Sorbitan Oleate Xanthan Gum Glycerin Potassium Cetyl Phosphate Hexylene Glycol Polysorbate 80 PEG-100 Stearate Silica Lecithin
Oily/Acne-Prone Skin No data
Sensitive Skin 4/8
Good for sensitive skin
Dimethylmethoxy Chromanol Vanilla Planifolia Fruit Extract Glycerin Dimethicone
Caution for sensitive skin
Sorbitan Oleate Caprylic/Capric Triglyceride Glycerin Hexylene Glycol Sodium Benzoate Phenoxyethanol Linalool Limonene

Ingredients list

43 total
Lower hazard (1) Higher hazard (6)
All43 Skin Conditioning26 Emollient10 Solvent9 Perfuming8 Fragrance7 Viscosity Controlling7 Surfactant6 Emulsifying6
EWG CIR Ingredient Name & Cosmetic Functions Notes
2
Butyl Methoxydibenzoylmethane
(Uv Absorber, Uv Filter)
6
Ethylhexyl Methoxycinnamate
(Uv Absorber, Uv Filter)
Bad for Oily Skin
Bad for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
3
Octocrylene
(Sunscreen Agent, Uv Absorber, Uv Filter)
1
Water
(Solvent)
1
A
C12-15 Alkyl Benzoate
(Skin Conditioning, Emollient, Antimicrobial)
1
Ethylhexyl Methoxycrylene
(Uv Absorber)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
1
VP/Eicosene Copolymer
(Binding, Film Forming, Viscosity Controlling)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
3
A
Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
Silicone
Silicone
1
B
Potassium Cetyl Phosphate
(Emulsifying, Surfactant)
3
A
PEG-100 Stearate
(Surfactant)
Fungal Acne
Fungal Acne Trigger
Dimethyl Capramide
(Emulsion Stabilising, Solvent)
Hydrogenated Palm Glycerides
(Skin Conditioning, Skin Conditioning Emollient, Surfactant Emulsifying, Viscosity Controlling)
Citrus Aurantium Dulcis Peel Extract
(Binding, Emulsion Stabilising, Perfuming, Skin Conditioning, Viscosity Controlling)
Citrus Grandis Peel Extract
(Astringent, Perfuming, Skin Conditioning, Tonic)
Prunus Armeniaca Fruit Extract
(Skin Conditioning)
Aniba Rosaeodora Wood Extract
(Fragrance, Perfuming)
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
Vitis Vinifera Fruit Cell Extract
(Skin Conditioning)
1
Diaminopropionoyl Tripeptide-33
(Skin Conditioning)
1
Vanilla Planifolia Fruit Extract
(Skin Conditioning, Skin Protecting, Smoothing)
1
Dimethylmethoxy Chromanol
(Antioxidant)
2
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
(Emulsion Stabilising, Viscosity Controlling)
Citrus Aurantifolia Peel Extract
(Cleansing, Hair Conditioning, Perfuming, Skin Conditioning, Tonic)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
2
A
Cyclohexasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
A
Sorbitan Oleate
(Fragrance, Emulsifying, Surfactant)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
A
Glyceryl Stearate
(Emollient, Emulsifying)
Fungal Acne
Fungal Acne Trigger
1
B
Glyceryl Distearate
(Skin Conditioning, Emollient, Antistatic Agent)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
B
Isohexadecane
(Skin Conditioning, Emollient, Solvent)
1
Polysilicone-11
(Film Forming)
3
B
Polysorbate 80
(Denaturant, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Isomalt
(Anticaking Agent, Bulking Agent, Flavoring Agent, Humectant)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Chemical UV Filter
Absorbs UV rays to help prevent sun damage.
Peptides
Supports skin hydration and improves firmness.
Antioxidants
Shields skin from free radical damage.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Good For Oily SkinBalances oil and helps reduce shine.
Scar HealingImproves the look of marks and scars.
Reduces IrritationEases discomfort and supports skin resilience.
Reduces Large PoresMinimizes the look of enlarged pores.
Show all 6 benefits

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Butyl Methoxydibenzoylmethane
Uv absorber, Uv filter
Low-hazard ingredient.Read moreShow less
EWG 2 Uv absorberUv filter
Octocrylene
Sunscreen agent, Uv absorber
Low-to-moderate hazard.Read moreShow less
EWG 3 Sunscreen agentUv absorberUv filter
Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
C12-15 Alkyl Benzoate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollientAntimicrobial
Ethylhexyl Methoxycrylene
Uv absorber
Low-hazard ingredient.Read moreShow less
EWG 1 Uv absorber
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
VP/Eicosene Copolymer
Binding, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 BindingFilm formingViscosity controlling
Potassium Cetyl Phosphate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
Dimethyl Capramide
Emulsion stabilising, Solvent
Limited public safety data.Read moreShow less
EWG N/A Emulsion stabilisingSolvent
Hydrogenated Palm Glycerides
Skin conditioning, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningSkin conditioning emollientSurfactant emulsifyingViscosity controlling
Citrus Aurantium Dulcis Peel Extract
Binding, Emulsion stabilising
Limited public safety data.Read moreShow less
EWG N/A BindingEmulsion stabilisingPerfumingSkin conditioningViscosity controlling
Citrus Grandis Peel Extract
Astringent, Perfuming
Limited public safety data.Read moreShow less
EWG N/A AstringentPerfumingSkin conditioningTonic
Prunus Armeniaca Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Aniba Rosaeodora Wood Extract
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Lecithin
Skin conditioning, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Skin conditioningEmulsifyingSurfactantAntistatic agentEmollient
+ 17 more — see the full ingredients list above
Ethylhexyl Methoxycinnamate
Uv absorber, Uv filter
Potentially a skin irritantRead moreShow less
EWG 6 Uv absorberUv filter Bad for Oily SkinBad for Sensitive Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Cyclopentasiloxane
Hair conditioning, Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Hair conditioningSkin conditioningEmollientSolvent Silicone
PEG-100 Stearate
Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Surfactant Fungal-acne trigger
Sorbitan Oleate
Fragrance, Emulsifying
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceEmulsifyingSurfactant Bad for Oily SkinFungal-acne trigger
Glyceryl Stearate
Emollient, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientEmulsifying Fungal-acne trigger
Polysorbate 80
Denaturant, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B DenaturantEmulsifyingSurfactant Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens

How to use

How to use

  • 1 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

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