Bright White Serum

Circadia

Where to buy Possibly in stock

About this product

The Circadia Bright White Serum is a serums, essence, ampoule. Our analysis of its 27 ingredients (21 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to sensitive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
27
Low-risk
21
Fragrance
Fragrance-free
Origin
United States
Data updated
May 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 6/7
Good for dry skin
Glyceryl Distearate Cetearyl Alcohol Caprylic/Capric Triglyceride Caprylyl Glycol Glycerin Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
Caution for dry skin
Stearic Acid Xanthan Gum Glycerin Hexylene Glycol Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone Ceteareth-20 Sodium Hydroxide
Oily/Acne-Prone Skin No data
Sensitive Skin 8/5
Good for sensitive skin
Resveratrol Vanilla Planifolia Fruit Extract Rumex Occidentalis Extract Glycerin Tetrahexyldecyl Ascorbate Phenylethyl Resorcinol Tocopheryl Acetate Sodium Metabisulfite
Caution for sensitive skin
Stearic Acid Caprylic/Capric Triglyceride Glycerin Hexylene Glycol Phenoxyethanol

Ingredients list

27 total
Lower hazard (1) Higher hazard (4)
All27 Skin Conditioning17 Antioxidant6 Emulsion Stabilising6 Skin Protecting5 Fragrance5 Viscosity Controlling5 Emulsifying5 Emollient5
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
B
Glyceryl Distearate
(Skin Conditioning, Emollient, Antistatic Agent)
1
A
Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling)
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
Simmondsia Chinensis Seed Wax
(Hair Conditioning, Skin Conditioning, Viscosity Controlling)
1
Tetrahexyldecyl Ascorbate
(Antioxidant, Skin Conditioning)
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
A
Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
Dimethyl Isosorbide
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
3
B
Ceteareth-20
(Cleansing, Emulsifying, Surfactant)
3
A
Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
(Emollient, Emulsifying, Skin Conditioning, Surfactant)
1
Phenylethyl Resorcinol
(Antioxidant)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
4
A
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
Marrubium Vulgare Meristem Cell Culture
(Skin Protecting)
1
Resveratrol
(Antioxidant, Skin Protecting)
2
A
Tetrasodium EDTA
(Chelating Agent)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
Rumex Occidentalis Extract
(Skin Conditioning, Soothing)
ASCORBIC ACID
(Antioxidant, Buffering, Fragrance, Skin Conditioning)
Prunus Amygdalus Dulcis Fruit Water
(Skin Conditioning)
3
B
Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent)
1
Vanilla Planifolia Fruit Extract
(Skin Conditioning, Skin Protecting, Smoothing)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)

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

Antioxidants
Shields skin from free radical damage.
Vitamin C
Brightens, evens tone, and supports collagen.
Vitamin E
Protects skin and soothes irritation.

Benefits

BrighteningRestores radiance to dull, tired skin.
HydratingBoosts hydration and relieves dry, tight skin.
Scar HealingImproves the look of marks and scars.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
Redness ReducingSoothes visible redness and calms irritation.
Dark SpotsFades dark spots for even skin tone.
Skin TextureSmooths rough patches and refines texture.

Concerns

Contains paraben
Not fungal acne (malassezia) safe
May not suit dry skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Glyceryl Distearate
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientAntistatic agent
Cetearyl Alcohol
Emulsion stabilising, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingOpacifyingFoam boostingViscosity increasingagent - aqueousViscosity increasing agentEmollientEmulsifyingViscosity controlling
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Simmondsia Chinensis Seed Wax
Hair conditioning, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Hair conditioningSkin conditioningViscosity controlling
Tetrahexyldecyl Ascorbate
Antioxidant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 AntioxidantSkin conditioning
Dimethyl Isosorbide
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Ceteareth-20
Cleansing, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B CleansingEmulsifyingSurfactant
Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone
Emollient, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A EmollientEmulsifyingSkin conditioningSurfactant
Phenylethyl Resorcinol
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Sodium Metabisulfite
Antioxidant, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A AntioxidantPreservativeReducing
Hexylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentEmulsifyingPerfumingSkin conditioningSurfactant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingViscosity controlling
Marrubium Vulgare Meristem Cell Culture
Skin protecting
Limited public safety data.Read moreShow less
EWG N/A Skin protecting
+ 8 more — see the full ingredients list above
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
Stearic Acid
Fragrance, Sufactant
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSufactantEmulsifyingSurfactantsurfactant-cleansing agent is included as a function for the soap form of stearic acid.Emulsion stabilisingMaskingRefatting Bad for Oily SkinFungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning works well: Antioxidants like vitamin C pair well with daytime use under sunscreen.

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

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

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.

Tetrahexyldecyl Ascorbate, ASCORBIC ACID

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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