
Highlights
WHAT IS IT?
Protective makeup primer with silk extracts
FEATURES
Creates smooth canvas for makeup, protects skin from pollutants, helps makeup last longer
BEST FOR
combination
CHECKS
Clean beauty standards
Who Is It For?
Adults All GendersWhat Does It Help With?
Smooths Skin Texture Extends Makeup Wear Protects Against Environmental StressorsBudget
Mid-range ($30-$75)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Tatcha Says
Product Description:
A clean, skin-protecting makeup primer of pressed silk that creates the perfect canvas for makeup while keeping it in place.
About the Brand:
Ingredients Overview
Ingredients List
Dimethicone, Aqua/water/eau, Glycerin, Saccharomyces/rice Ferment Filtrate, Hdi/trimethylol Hexyllactone Crosspolymer, Propanediol, Ceresin, Squalane, Synthetic Fluorphligopite, Dimethicone/peg-10/15 Crosspolymer, Parfum/fragrance, Serica/silk Powder/poudre De Soie, Caesalpinia Spinosa Fruit Extract, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Kappaphycus Alvarezii Extract, Hydrolyzed Silk, Sericin, Tocopherol, Biosaccharide Gum-4, Peg/ppg-18/18 Dimethicone, Dimethicone/vinyl Dimethicone Crosspolymer, Peg-9 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-2 Diisostearate, Distearyldimonium Chloride, Trimethylsiloxysilicate, Silica, Zinc Stearate, Yeast Extract, Aluminum Hydroxide, Ethylhexylglycerin, Dipropylene Glycol, 1,2-hexanediol, Caprylyl Glycol, Sodium Citrate, Stearic Acid, Phenoxyethanol, Isopropyl Alcohol, Limonene, Linalool, Citral, Titanium Dioxide (Ci 77891), Tin Oxide (Ci 77861), Iron Oxides (Ci 77491)
Key Ingredients
Hadasei-3 Complex, Silk extracts, Squalane
Ingredients Details
Ceresin
Common Name(s): Ceresin,botanical extract,phytochemical active
CAS Number: N/a
DESCRIPTION
What It Does: Provides antioxidant protection, anti-inflammatory activity, and skin conditioning from polyphenols, terpenoids, and phytochemicals.
Why It's Used: Multi-functional phytochemical profiles support concurrent skin care claims with authentic botanical heritage.
How It Works: Polyphenols scavenge ros, inhibit nf-kb/cox pathways, and condition skin through phytochemical interactions.
Typically Found In: Botanical skin care
TECHNICAL DETAILS
Primary Category: Active ingredient โ antioxidant
Secondary Functions: Free radical scavenging,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ30%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Conditional
Source Notes: Plant-derived extract or synthetic.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; well-tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Vitamin c,vitamin e,ferulic acid,spf,other antioxidants
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Plant secondary metabolites evolved for uv photoprotection and pathogen defence โ mechanisms directly translatable to cosmetic antioxidant and anti-inflammatory activity in human skin.
Last Verified: Cosing database,ceresin botanical review
Primary Sources: 2026-03-12
Dimethicone
Common Name(s): Pdms,polydimethylsiloxane,silicone fluid
CAS Number: 9006-65-9
DESCRIPTION
What It Does: Provides silicone-characteristic silky feel and skin protection with adjustable viscosity.
Why It's Used: The benchmark cosmetic silicone โ sets the gold standard for silky application feel, spreadability, and skin protection in virtually all skin care categories.
How It Works: Polydimethylsiloxane chain flexibility provides extremely low surface tension and high spreadability. inert si-o backbone provides chemical stability and excellent skin tolerance. occlusive film formation reduces tewl. higher viscosity grades provide more intense conditioning.
Typically Found In: Moisturizers,foundations,primers,sunscreens โ nearly universal
TECHNICAL DETAILS
Primary Category: Functional ingredient โ polydimethylsiloxane
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ30%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
Halal Status: Yes
Source Notes: Plant-derived, synthetic or animal-derived. verify source.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 1/5 โ low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Dimethicone's exceptional silky feel arises from its very low intermolecular attractive forces (weak van der waals forces due to non-polar methyl groups) that allow silicone chains to slide freely over skin. the coefficient of kinetic friction for pdms against skin (~0.04) is among the lowest of any cosmetic material โ explaining why even small amounts transform product feel.
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12
Dimethicone/peg-10/15 Crosspolymer
Common Name(s): Dimethicone/peg-10/15 crosspolymer
DESCRIPTION
What It Does: Reduces surface tension at oil-water interfaces, enabling effective cleansing, emulsification, and formulation stability.
Why It's Used: Surface-active agents are essential for emulsification, cleansing, and stabilization of cosmetic formulations containing both aqueous and lipid phases.
How It Works: The amphiphilic molecular structure positions the hydrophilic head in water and the lipophilic tail in oils, creating micelles that solubilize sebum, dirt, and oil-soluble impurities for rinsing in cleansers or stable emulsions in leave-on products.
Typically Found In: Cleansers,shampoos,body washes,foaming treatments
TECHNICAL DETAILS
Primary Category: Surfactants
Secondary Functions: Emulsifying,cleansing
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5โ30%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic or semi-synthetic surfactant; no animal components.
SKIN COMPATIBILITY
Irritancy Rating: 2
Comedogenicity Rating: 0
Sensitivity Concerns: May cause irritation or stinging in sensitive or barrier-compromised skin at high concentrations; patch test recommended.
Safe for Sensitive Skin: Conditional
SAFETY & COMPATIBILITY
Safety Profile: Well-characterized cosmetic ingredient with established safety profile. mildly irritating to some individuals at typical use concentrations. suitable for leave-on and rinse-off cosmetics.
Works Well With: Other surfactants,thickeners,conditioning agents
Avoid Combining With: High concentrations in sensitive skin formulations
SCIENTIFIC NOTE
Surfactant critical micelle concentration (cmc) determines the threshold for emulsification: above the cmc, amphiphilic molecules self-assemble into micelles with hydrophobic cores that solubilize oils. hlb (hydrophile-lipophile balance) value predicts surfactant function: hlb 3โ6 for w/o emulsifiers, 8โ18 for o/w emulsifiers, >15 for solubilizers.
Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
Primary Sources: 2025-01-15
Glycerin
Common Name(s): Glycerol,glycerine,1,2,3-propanetriol
CAS Number: 56-81-5
DESCRIPTION
What It Does: Glycerin pulls water from the environment and deeper skin layers into the outer skin layer (epidermis), boosting moisture levels and keeping skin soft, smooth, and plump.
Why It's Used: It is used in virtually every moisturizer, serum, and cleanser because it is highly effective at hydrating skin, is well-tolerated by all skin types, and enhances the texture and spreadability of formulations.
How It Works: As a humectant, glycerin forms hydrogen bonds with water molecules, trapping them in the skin. it also reinforces the skin barrier by integrating into lipid structures between skin cells.
Typically Found In: Moisturizers,serums,cleansers,toners,sheet masks,sunscreens,body lotions,shampoos,conditioners
TECHNICAL DETAILS
Primary Category: Humectant
Secondary Functions: Skin barrier support,emollient,solvent
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ30% (typical: 3โ10%)
SOURCING & ETHICS
Vegan Status: Yes โ plant-derived (coconut, soy, palm) or synthetic
Halal Status: Yes โ when plant-derived or synthetic; verify source with supplier
Source Notes: Derived from plant oils via hydrolysis or saponification; synthetic versions also available. palm-derived glycerin carries sustainability concerns.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low; non-irritating at all standard concentrations
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Extremely rare allergic reactions; generally safe for all skin types including sensitive and baby skin
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Widely recognized as safe. ewg hazard score: 1. no significant concerns for irritation, sensitization, or toxicity at typical concentrations (up to 50%).
Works Well With: Hyaluronic acid,ceramides,niacinamide,panthenol,urea,peptides,retinol,ahas/bhas
Avoid Combining With: No known incompatibilities at standard concentrations
SCIENTIFIC NOTE
Glycerin is an endogenous skin component found naturally in the stratum corneum. aquaporin-3 channels in keratinocytes facilitate glycerin transport, making it integral to natural skin hydration pathways.
Last Verified: Cosing database,cir safety assessment,ewg skin deep,inci decoder
Primary Sources: 2026-03-12