
Highlights
WHAT IS IT?
Vitamin C brightening mask with 20% Vitamin C and 10% AHA
FEATURES
Creamy anti-aging mask that reveals softer, brighter skin in one use
BEST FOR
combination
CHECKS
Parabens-free, synthetic fragrances-free, mineral oil-free, sulfate-free, detergents-free, phthalates-free, urea-free, DEA-free, TEA-free.
Who Is It For?
Adults All GendersWhat Does It Help With?
Brightening Anti-aging Skin Texture ImprovementBudget
Premium ($76-$150)How To Use
Which routine should it be used in?
Instructions:
Key Information
What Tatcha Says
Product Description:
A creamy anti-aging mask with 20% Vitamin C + 10% AHA that reveals softer, brighter skin in just one use
About the Brand:
Ingredients Overview
Ingredients List
Kaolin, Aqua/Water/Eau, Glycerin, Saccharomyces/Rice Ferment Filtrate, Propanediol, Oryza Sativa (Rice) Germ Oil, Cetearyl Alcohol, Butylene Glycol, Ascorbyl Tetraisopalmitate, Bis-Glyceryl Ascorbate, Glyceryl Stearate, Cellulose Gum, Dimethicone, Mica, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Pyrus Malus (Apple) Fruit Extract, Citrus Paradisi (Grapefruit) Fruit Extract, Citrus Aurantium Dulcis (Orange) Juice, Citrus Limon (Lemon) Juice, Citrus Aurantifolia (Lime) Juice, Callicarpa Japonica Fruit Extract, Ziziphus Jujuba Fruit Extract, Crataegus Cuneata Fruit Extract, Sodium Stearoyl Glutamate, Tocopherol, Ethylhexylglycerin, Parfum/Fragrance, Limonene, Phenoxyethanol, Tin Oxide, Titanium Dioxide (Ci 77891), Violet 2 (Ci 60725), Carmine (Ci 75470), Ferric Ferrocyanide (Ci 77510)
Key Ingredients
Vitamin-C, AHA, Japanese-Beautyberry
Ingredients Details
Ascorbyl Tetraisopalmitate
Common Name(s): Atip,vc-ip,vitamin c tetraisopalmitate
CAS Number: 183476-82-6
DESCRIPTION
What It Does: Delivers potent, stable vitamin c deep into skin for antioxidant protection, brightening, and collagen stimulation.
Why It's Used: Premium anti-aging where deep vitamin c penetration and exceptional stability are both required.
How It Works: Four isopalmitate chains facilitate passive diffusion through stratum corneum lipid bilayers. esterases progressively cleave chains releasing ascorbic acid in deeper skin layers.
Typically Found In: Premium serums,oil-based vitamin c,anti-aging oils
TECHNICAL DETAILS
Primary Category: Active ingredient โ vitamin c derivative
Secondary Functions: Superior penetration,stable vitamin c
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%โ3%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
Halal Status: Yes
Source Notes: Fully synthetic. produced by esterification of ascorbic acid with isopalmitic acid derivatives.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; suitable for all skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Tocopherol,ferulic acid,niacinamide,spf
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Ex vivo penetration studies confirm significantly higher skin penetration depth vs l-ascorbic acid. the four isopalmitate chains facilitate partitioning into the lipid-continuous stratum corneum phase.
Last Verified: Cosing database,pinnell vitamin c derivatives review
Primary Sources: 2026-03-12
Bis-glyceryl Ascorbate
Common Name(s): Bis-glyceryl ascorbate
DESCRIPTION
What It Does: Neutralizes free radicals, supports collagen biosynthesis, and inhibits melanin overproduction for brightened, protected, and younger-looking skin.
Why It's Used: Vitamins support fundamental enzymatic and antioxidant processes in skin cells; topical delivery addresses localized deficiencies and enhances concentrations beyond systemic levels.
How It Works: The vitamin pharmacophore donates electrons to free radicals, chelates metal ion pro-oxidants, and serves as a cofactor for skin enzymes (e.g., prolyl hydroxylase for collagen synthesis), providing multi-mechanism skin protection.
Typically Found In: Serums,moisturizers,eye creams,sunscreens
TECHNICAL DETAILS
Primary Category: Vitamin derivatives
Secondary Functions: Antioxidant,brightening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1โ20%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic vitamin derivative; no animal components.
SKIN COMPATIBILITY
Irritancy Rating: 1
Comedogenicity Rating: 0
Sensitivity Concerns: Low sensitization potential at recommended use concentrations.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.
Works Well With: Other antioxidants,ferulic acid,hyaluronic acid
Avoid Combining With: Incompatible oxidizing agents; check ph stability
SCIENTIFIC NOTE
Vitamin derivatives in cosmetics function as prodrugs: esterase enzymes in skin cleave the ester bond to release the free vitamin acid or alcohol. the rate of release depends on the ester chain length and branching (log p), with shorter chain esters hydrolyzing faster. free vitamin concentration in skin determines efficacy, making ester hydrolysis rate a critical formulation parameter.
Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
Primary Sources: 2025-01-15
Butylene Glycol
Common Name(s): 1,3-butanediol,bg,1,3-butylene glycol
CAS Number: 107-88-0
DESCRIPTION
What It Does: Provides humectant hydration and active ingredient solubilization with excellent skin feel.
Why It's Used: Preferred glycol humectant in premium and k-beauty formulations for superior skin feel vs propylene glycol with equivalent functionality.
How It Works: Two hydroxyl groups at 1,3-positions provide water binding and solvent activity. better tolerated than propylene glycol with minimal sensitization risk. 4-carbon backbone provides slightly greater hydrophobic character enabling dissolution of less polar actives vs pg.
Typically Found In: Toners,essences,serums,k-beauty formulas
TECHNICAL DETAILS
Primary Category: Functional ingredient โ glycol humectant
Secondary Functions: Tewl reduction,skin plumping
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ10%
SOURCING & ETHICS
Vegan Status: Yes โ synthetic
Halal Status: Yes
Source Notes: Synthetic or naturally derived. excellent aqueous solubility.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; suitable for all skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
K-beauty's preference for butylene glycol over propylene glycol is driven by two factors: bg's superior skin feel (less tacky than pg's higher viscosity) and its lower sensitization potential (1,3-bg has better spatial distribution of hydroxyl groups that reduces protein interaction vs pg's 1,2-position oh groups).
Last Verified: Cosing database,cir safety assessment
Primary Sources: 2026-03-12
Cellulose Gum
Common Name(s): Cellulose gum,cosmetic active,functional ingredient
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function at recommended use concentration.
Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.
How It Works: Works through the mechanism of its molecular class โ physicochemical or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed cosmetic literature.
Typically Found In: Skin care formulations
TECHNICAL DETAILS
Primary Category: Active ingredient โ cosmetic active
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ10%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Well-tolerated by most skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile at recommended concentrations. ewg score: 1โ2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Cellulose gum has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: Cosing database,cellulose gum technical literature
Primary Sources: 2026-03-12