The Brightening Serum

Tatcha

Where to buy Possibly in stock

About this product

The Tatcha The Brightening Serum is a serums, essence, ampoule. Our analysis of its 44 ingredients (32 low-risk) rates it Excellent (95/100). 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.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
44
Low-risk
32
Fragrance
Contains fragrance
Origin
United States

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 9/8
Good for dry skin
Honey Extract Dipotassium Glycyrrhizate Prunus Mume Fruit Extract Butylene Glycol Sodium Hyaluronate Glycerin Polyglyceryl-10 Diisostearate Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract
Caution for dry skin
Isostearic Acid Xanthan Gum Glycerin Polyglyceryl-10 Diisostearate Polyglyceryl-10 Laurate PPG-13-Decyltetradeceth-24 Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract
Oily/Acne-Prone Skin 2/0
Good for oily/acne-prone skin
Scutellaria Baicalensis Root Extract Camellia Sinensis Leaf Extract
Sensitive Skin 5/11
Good for sensitive skin
Ascorbyl Glucoside Glycerin Scutellaria Baicalensis Root Extract Ferulic Acid Camellia Sinensis Leaf Extract
Caution for sensitive skin
Linalyl Acetate Sodium Citrate Juniperus Virginiana Oil Butylene Glycol Glycerin Citric Acid Camellia Sinensis Leaf Extract Phenoxyethanol Linalool Limonene Citral

Ingredients list

44 total
Lower hazard (1) Higher hazard (7)
All44 Skin Conditioning27 Fragrance10 Humectant9 Masking8 Solvent6 Perfuming5 Emulsifying4 Deodorant3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
Saccharomyces/Rice Ferment Filtrate
(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
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Ascorbyl Glucoside
(Antioxidant)
1
Honey Extract
(Humectant, Skin Conditioning, Moisturising)
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
Cladosiphon Okamuranus Extract
(Skin Conditioning)
2
Ferulic Acid
(Antioxidant, Preservative, Uv Absorber, Antimicrobial)
1
Angelica Acutiloba Root Extract
(Skin Conditioning)
1
Prunus Mume Fruit Extract
(Humectant)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing)
Callicarpa Japonica Fruit Extract
(Skin Conditioning)
1
Zizyphus Jujuba Fruit Extract
(Skin Conditioning)
1
Artemisia Capillaris Flower Extract
(Skin Conditioning)
1
Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing)
1
Morus Alba Root Extract
(Bleaching, Skin Conditioning)
1
B
PPG-13-Decyltetradeceth-24
(Emulsifying, Surfactant)
1
Lysine Carboxymethyl Cysteinate
(Skin Conditioning)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
1,2-Hexanediol
(Solvent)
1
Polyglyceryl-10 Diisostearate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
1
A
Isostearic Acid
(Binding Agent, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Isostearic Acid., Binding, Emulsifying)
Fungal Acne
Fungal Acne Trigger
PARFUM
(Fragrance, Perfuming)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
2
A
Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
7
Citral
(Flavoring Agent, Fragrance, Masking)
Allergens
Allergens
Citrus Aurantium Bergamia Peel Oil
Citrus Limon Peel Oil
(Fragrance, Perfuming, Skin Conditioning)
1
Eucalyptus Globulus Bad for Sensitive Skin
Bad for Sensitive Skin
1
Juniperus Virginiana Oil
(Masking, Tonic)
Lavandula Hybrida Extract
(Skin Conditioning Emollient)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
1
Linalyl Acetate
(Fragrance, Masking)
Pinene
(Antifoaming, Fragrance)

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

Saccharomyces/Rice Ferment Filtrate
Skin Conditioning
Glycerin
Humectant, Skin Protecting
Butylene Glycol
Skin Conditioning, Humectant
Ascorbyl Glucoside
Antioxidant
Honey Extract
Humectant, Skin Conditioning
Camellia Sinensis Leaf Extract
Antioxidant, Astringent

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Citral — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Saccharomyces/Rice Ferment Filtrate
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Ascorbyl Glucoside
Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 Antioxidant
Honey Extract
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioningMoisturising
Cladosiphon Okamuranus Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Ferulic Acid
Antioxidant, Preservative
Low-hazard ingredient.Read moreShow less
EWG 2 AntioxidantPreservativeUv absorberAntimicrobial
Angelica Acutiloba Root Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Prunus Mume Fruit Extract
Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 Humectant
glycyrrhiza glabra root extract
Bleaching, Perfuming
Limited public safety data.Read moreShow less
EWG N/A BleachingPerfumingSkin conditioningSkin conditioning emollientSmoothingSoothing
Callicarpa Japonica Fruit Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Zizyphus Jujuba Fruit Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Artemisia Capillaris Flower Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Scutellaria Baicalensis Root Extract
Astringent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentHumectantSoothing
Morus Alba Root Extract
Bleaching, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 BleachingSkin conditioning
+ 18 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
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Isostearic Acid
Binding agent, Sufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentSufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.BindingEmulsifying Fungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Citral
Flavoring agent, Fragrance
Higher-hazard ingredient.Read moreShow less
EWG 7 Flavoring agentFragranceMasking Allergens
Eucalyptus Globulus
Other
Potentially a skin irritantRead moreShow less
EWG 1 Bad for Sensitive Skin
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 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 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.

Trust & honesty

Officially notified as a cosmetic in Malaysia (NPRA). Government registration record.

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.

Ascorbyl Glucoside

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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