Circa-Shield – Mineral Sunscreen SPF 30

Circadia

Circa-Shield – Mineral Sunscreen SPF 30

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About this product

The Circadia Circa-Shield – Mineral Sunscreen SPF 30 is a sunscreen. Our analysis of its 35 ingredients (19 low-risk) rates it Excellent (99/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Sunscreen
Ingredients
35
Low-risk
19
Fragrance
Fragrance-free
Origin
United States
SPF
30 · blocks 96.7% 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 7/5
Good for dry skin
Diisopropyl Adipate Fucus Vesiculosus Extract Caprylic/Capric Triglyceride Coco-Caprylate/Caprate Polyglyceryl-3 Diisostearate Camellia Sinensis Leaf Extract C14-22 Alkane
Caution for dry skin
Sorbitan Olivate Polyglyceryl-3 Diisostearate Polyhydroxystearic Acid Camellia Sinensis Leaf Extract Silica
Oily/Acne-Prone Skin 1/0
Good for oily/acne-prone skin
Camellia Sinensis Leaf Extract
Sensitive Skin 5/7
Good for sensitive skin
Zinc Oxide Vanilla Planifolia Fruit Extract Fucus Vesiculosus Extract Triethyl Citrate Camellia Sinensis Leaf Extract
Caution for sensitive skin
Rosa Damascena Flower Extract Diisopropyl Adipate Linalyl Acetate Caprylic/Capric Triglyceride Triethyl Citrate Camellia Sinensis Leaf Extract Linalool

Ingredients list

35 total
Lower hazard (1) Higher hazard (5)
All35 Skin Conditioning23 Fragrance10 Emollient7 Masking7 Perfuming6 Solvent5 Hair Conditioning4 Plasticizer4
EWG CIR Ingredient Name & Cosmetic Functions Notes
C14-22 Alkane
(Emollient, Skin Conditioning, Solvent)
2
3
Zinc Oxide
(Bulking Agent, Cosmetic Colorant, Skin Protecting, Sunscreen Agent)
Good for Oily Skin
Good for Oily Skin
Olea Europaea Fruit Oil
(Fragrance, Perfuming, Skin Conditioning)
1
A
Sorbitan Olivate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Diisopropyl Adipate
(Fragrance, Plasticizer, Skin Conditioning, Emollient, Solvent, Masking)
1
C9-12 Alkane
(Solvent)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
Oryza Sativa Bran Cera
(Skin Conditioning)
Vegetable Oil
(Hair Conditioning, Skin Conditioning)
SIMMONDSIA CHINENSIS SEED OIL
(Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
Curcuma Longa Root Extract
(Fragrance, Perfuming)
1
Saccharomyces Ferment
(Skin Conditioning)
1
B
Polyglyceryl-4 Oleate
(Emulsifying)
1
Triethoxycaprylylsilane
(Binding Agent, Binding)
1
B
Coco-Caprylate/Caprate
(Emollient, Skin Conditioning)
Glycine Soja Oil
(Perfuming, Skin Conditioning, Skin Conditioning Emollient)
1
Polyhydroxystearic Acid
(Suspending Agent Nonsurfactant, Emulsifying)
1
A
Triethyl Citrate
(Fragrance, Plasticizer, Antioxidant, Deodorant, Masking, Solvent)
1
B
Lauroyl Lysine
(Hair Conditioning, Skin Conditioning, Viscosity Controlling)
Bis(Cyano Butylacetate) Anthracenediylidene
(Skin Conditioning)
1
B
Polyglyceryl-3 Diisostearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
Oryza Sativa Germ Extract
(Skin Conditioning Emollient)
Oryza sativa extract
(Abrasive, Absorbent, Bulking, Hair Conditioning, Skin Conditioning)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Vanilla Planifolia Fruit Extract
(Skin Conditioning, Skin Protecting, Smoothing)
1
Linalyl Acetate
(Fragrance, Masking)
1
Fucus Vesiculosus Extract
(Emollient, Skin Conditioning, Smoothing, Soothing)
Salvia Officinalis Flower/Leaf/Stem Extract
(Fragrance, Skin Conditioning)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
Lavandula Angustifolia Flower/Leaf/Stem Extract
(Flavouring, Fragrance, Oral Care, Perfuming, Skin Conditioning)
Salvia Triloba Leaf Extract
(Antimicrobial, Astringent, Oral Care)
Jasminum Officinale Flower/Leaf Extract
(Fragrance, Moisturising, Perfuming, Skin Conditioning, Soothing)
1
Rosa Damascena Flower Extract
(Masking, Tonic)
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

Mineral UV Filter
Reflects UV rays using mineral barriers.
Antioxidants
Shields skin from free radical damage.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Reduces IrritationEases discomfort and supports skin resilience.
Good For Oily SkinBalances oil and helps reduce shine.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces Large PoresMinimizes the look of enlarged pores.
Dark SpotsFades dark spots for even skin tone.
Barrier RepairStrengthen and restore your skin's natural barrier.
BrighteningRestores radiance to dull, tired skin.

Concerns

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

Ingredients explained

C14-22 Alkane
Emollient, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A EmollientSkin conditioningSolvent
Olea Europaea Fruit Oil
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfumingSkin conditioning
Diisopropyl Adipate
Fragrance, Plasticizer
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragrancePlasticizerSkin conditioningEmollientSolventMasking
C9-12 Alkane
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Oryza Sativa Bran Cera
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Vegetable Oil
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioning
SIMMONDSIA CHINENSIS SEED OIL
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioningSkin conditioning emollient
Curcuma Longa Root Extract
Fragrance, Perfuming
Limited public safety data.Read moreShow less
EWG N/A FragrancePerfuming
Saccharomyces Ferment
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Polyglyceryl-4 Oleate
Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Emulsifying
Triethoxycaprylylsilane
Binding agent, Binding
Low-hazard ingredient.Read moreShow less
EWG 1 Binding agentBinding
Coco-Caprylate/Caprate
Emollient, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmollientSkin conditioning
Glycine Soja Oil
Perfuming, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A PerfumingSkin conditioningSkin conditioning emollient
Polyhydroxystearic Acid
Suspending agent - nonsurfactant, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 Suspending agent - nonsurfactantEmulsifying
+ 15 more — see the full ingredients list above
Zinc Oxide
Bulking agent, Cosmetic colorant
Low-to-moderate hazard.Read moreShow less
EWG 2–3 Bulking agentCosmetic colorantSkin protectingSunscreen agent Good for Oily Skin
Sorbitan Olivate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger
Polyglyceryl-3 Diisostearate
Skin conditioning, Emollient
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifyingSurfactant Bad for Oily SkinFungal-acne trigger
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
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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