Tatcha The Brightening Serum
Tatcha

The Brightening Serum

Serum · 30 ml
Verified official source · updated
Partial WAI LAB score94/100
How is the score calculated?

The WAI LAB score uses only available, verified information for this product. Components without data are excluded rather than assigned an average value, and the result is marked as partial.

Active ingredients
30%
Formulation
25%
Price
Not available
Declared concentrations
15%
Data transparency
10%
The total is normalised across only the assessable components. This is a general, non-personalised assessment and does not guarantee the same result for every skin type. Your personal profile is considered separately in your match.
Data quality
INCIVerified
ConcentrationsNon dichiarate
SourceOfficial website
Size30 ml
FragrancePresent in the INCI list
VeganNot declared
Cruelty-freeNot declared
Last checked2026-09-15
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WAI LAB analysis
Identified skin concernsHydration · Radiance · Dark spots and uneven tone · Wrinkles and fine lines · Elasticity and firmness
Main cosmetic functionsHydration · Nourishment and barrier · Antioxidant action · Soothing and protective action
Basis of the analysisOfficial INCI + recognised active ingredients

This analysis is separate from brand claims and uses conservative associations between ingredients, cosmetic functions and skin concerns. WAI LAB does not attribute a benefit unless the INCI supports it.

Key active ingredients
not declared
not declared
not declared
not declared
not declared
Full INCI list
Aqua/Water/Eausolvent
Saccharomyces/Rice Ferment Filtratebotanical conditioning ingredient
moisturising ingredient
Propanediolsolvent/humectant
Butylene Glycolsolvent/humectant
antioxidant
Honey Extract/Extrait De Mielbotanical conditioning ingredient
Camellia Sinensis Leaf Extractbotanical conditioning ingredient
Cladosiphon Okamuranus Extractbotanical conditioning ingredient
antioxidant
Angelica Acutiloba Root Extractbotanical conditioning ingredient
Prunus Mume Fruit Extractbotanical conditioning ingredient
moisturising ingredient
botanical conditioning ingredient
Callicarpa Japonica Fruit Extractbotanical conditioning ingredient
Ziziphus Jujuba Fruit Extractbotanical conditioning ingredient
Artemisia Capillaris Flower Extractbotanical conditioning ingredient
Scutellaria Baicalensis Root Extractbotanical conditioning ingredient
Morus Alba Root Extractbotanical conditioning ingredient
PPG-13-Decyltetradeceth-24function not reported in the CosIng source
Lysine Carboxymethyl Cysteinatefunction not reported in the CosIng source
soothing ingredient (liquorice)
Xanthan Gumthickener
1, 2-Hexanediolpreservative/solvent
Polyglyceryl-10 Diisostearatefunction not reported in the CosIng source
Citric AcidpH regulator
Polyglyceryl-10 Laurateskin-conditioning ingredient
Sodium Citratechelating agent / pH regulator
Isostearic Acidcleansing surfactant / emulsifier
Fragrance
Ethylhexylglycerinpreservative
Potassium HydroxidepH regulator
Chlorphenesinpreservative
preservative
Citralfragrance (declared allergen)
Citrus Aurantium Bergamia Peel Oilemollient
Citrus Limon Peel Oilemollient
Eucalyptus Globulus Oilemollient
Juniperus Virginiana Oilemollient
Lavandula Oil/Extractbotanical conditioning ingredient
Limonenefragrance (declared allergen)
Linaloolfragrance (declared allergen)
Linalyl Acetateperfuming ingredient
Pineneperfuming ingredient / antifoaming