Tatcha The Silk Serum
Tatcha

The Silk 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 · Skin barrier
Main cosmetic functionsHydration · Nourishment and barrier
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
Lipidi vegetalinot declared
Full INCI list
Aqua/Water/Eausolvent
Saccharomyces/Rice Ferment Filtratebotanical conditioning ingredient
moisturising ingredient
Betainehumectant
Pentylene Glycolsolvent/humectant
Caprylic/Capric Triglycerideemollient
Propanediolsolvent/humectant
Fragrance
Vaccinium Macrocarpon (Cranberry) Fruit Extractbotanical conditioning ingredient
Crithmum Maritimum Extractbotanical conditioning ingredient
Camellia Sinensis Leaf Extractbotanical conditioning ingredient
Cladosiphon Okamuranus Extractbotanical conditioning ingredient
emollient
Sericinfunction not reported in the CosIng source
Morus Alba Leaf Extractbotanical conditioning ingredient
Hydrolyzed Silkfunction not reported in the CosIng source
Carthamus Tinctorius (Safflower) Seed Oilemollient
Tetrapeptide-4function not reported in the CosIng source
Polyglyceryl-10 Stearateskin-conditioning ingredient
Diglucosyl Gallic Acidfunction not reported in the CosIng source
Helianthus Annuus (Sunflower) Seed Oilemollient
Hydrolyzed Conchiolin Proteinfunction not reported in the CosIng source
Caprylyl Glycolhumectant/preservative
Acrylates/C10-30 Alkyl Acrylate Crosspolymerthickener/film-forming ingredient
1, 2-Hexanediolpreservative/solvent
Butylene Glycolsolvent/humectant
Sodium Citratechelating agent / pH regulator
Citric AcidpH regulator
Potassium HydroxidepH regulator
Synthetic Fluorphlogopiteviscosity regulator / bulking agent
Citralfragrance (declared allergen)
Limonenefragrance (declared allergen)
Linaloolfragrance (declared allergen)
Ethylhexylglycerinpreservative
preservative
colourant/opacifying ingredient
Tin Oxide (CI 77861)colourant/opacifying ingredient