Ingredients

These ingredients are typically found in skincare products. Get more information about each one below.

Tetrahydroxypropyl Ethylenediamine

Fair

Balances a formula's pH so it feels gentler and less likely to sting.

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Tetramethyl Acetyloctahydronaphthalenes

Fair

A synthetic fragrance note that gives products a long-lasting woody scent.

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Tetrapeptide-1

Fair

A lab-made peptide added to anti-aging formulas to help condition skin.

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Tetrapeptide-14

Fair

A peptide formulated to comfort sensitive, reactive-feeling skin.

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Tetrapeptide-16

Fair

May help ease the look of redness and irritation in reactive skin.

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Tetrapeptide-2

Fair

A synthetic peptide meant to give skin a firmer, more refined look.

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Tetrapeptide-21

Fair

A synthetic peptide meant to refine skin's smoothness and tone.

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Tetrapeptide-4

Fair

A peptide used to smooth texture and even out skin's appearance.

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Thamnolia Vermicularis Leaf Extract

Fair

A lichen extract added to creams for a mild conditioning effect.

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Theobroma Cacao (Cocoa) Fruit Powder

Fair

Cocoa fruit powder that adds natural color plus a touch of antioxidants.

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Thermal Spring Water

Fair

Mineral-rich spring water that soothes and refreshes sensitive skin.

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Thermus Thermophillus Ferment

Fair

A heat-loving microbe ferment used for antioxidant and soothing support.

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Thiamine HCL

Fair

Vitamin B1 added for mild antioxidant and skin-conditioning benefits.

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Thuja Orientalis Leaf Extract

Fair

A conifer leaf extract with a mild tightening, refreshing effect on skin.

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Thuja Orientalis Seed Extract

Fair

A conifer seed extract offering mild conditioning and antioxidant support.

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Thymol

Fair

A thyme-derived compound used for scent and to help preserve formulas.

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Thymus Serpyllum Extract

Fair

Wild thyme extract with mild antioxidant and skin-calming properties.

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Thymus Vulgaris (Thyme) Extract

Fair

Thyme extract that adds antioxidants and may help balance oily skin.

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Tocopherol and Triethanolamine

Fair

A vitamin E blend that adds antioxidant protection and smooth texture.

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Tocotrienol (Vitamin E)

Fair

A lighter form of vitamin E that offers gentle antioxidant support.

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Toluene Sulfonic Acid

Fair

A strong pH adjuster that helps keep formulas stable and skin-friendly.

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Tourmaline

Fair

A crushed mineral that adds subtle shimmer and smooth glide to makeup.

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Trametes Versicolor Extract

Fair

A mushroom extract meant to calm skin and even out its tone.

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Tremella

Fair

Snow mushroom extract that hydrates and leaves skin feeling calm.

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Tricholoma Matsutake Extract

Fair

Matsutake mushroom extract that soothes skin and adds antioxidants.

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Trichosanthes Kirilowii Extract

Fair

A calming plant extract with mild antioxidant and conditioning effects.

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Tridecapeptide-1

Fair

A peptide used in anti-aging products to help skin look firmer and smoother.

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Triethanolamine

Fair

Helps balance a formula's pH and keep emulsions stable and smooth.

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Trifluoroacetyl Tripeptide-2

Fair

A modified peptide marketed for firmer, more resilient-looking skin.

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Trifolium Pratense (Clover) Flower Extract

Fair

Red clover extract that offers antioxidant and skin-calming benefits.

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Trimethoxybenzylidene Pentanedione

Fair

Helps keep formulas fresh by slowing color and texture breakdown.

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Trimethylcyclohexyl Butylcarbamate

Fair

A synthetic fragrance ingredient with no proven skin benefit beyond scent.

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Tripeptide-1

Fair

A lab-made peptide meant to smooth skin and support resilience.

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Tripeptide-32

Fair

A peptide marketed to reduce the look of fatigue and uneven tone.

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Triticum Vulgare (Wheat) Germ Extract

Fair

Wheat germ extract that adds antioxidants and a calming, soft feel.

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Triticum Vulgare (Wheat) Germ Oil

Fair

A rich wheat germ oil that softens skin, though it can feel heavy.

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Triticum Vulgare (Wheat) Sprout Extract

Fair

Young wheat sprout extract with antioxidant and soothing properties.

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Tropaeolum Majus Flower/Leaf/Stem Extract

Fair

Nasturtium extract used for mild antioxidant and conditioning support.

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Tropolone

Fair

A preservative that binds metals and helps products last longer.

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Tyrosine

Fair

An amino acid that helps skin hold moisture and feel smoother.

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Ulex Europaeus Extract

Fair

Gorse plant extract used to comfort and soothe delicate skin.

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Ulmus Davidiana (Japaneses Elm) Extract

Fair

Elm extract that adds lightweight hydration and a soft, cushiony feel.

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Uncaria Gambir Extract (Uncaria Gambir)

Fair

A tannin-rich plant extract used as an astringent and antioxidant.

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Undaria Pinnatifida Powder

Fair

Milled brown seaweed used for antioxidant and conditioning support.

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Undecylenoyl Glycine

Fair

Helps cleansers reduce excess oil while foaming gently on skin.

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UrticaDioicia (Nettle) Leaf Extract

Fair

Nettle leaf extract that calms skin and adds mild antioxidants.

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Usnea Barbata (Lichen) Extract

Fair

A lichen extract that helps preserve formulas and lightly condition skin.

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Vaccinium Corymbosum (Blueberry) Fruit Extract

Fair

Highbush blueberry extract with antioxidant and conditioning benefits.

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Vaccinium Macrocarpon (Cranberry) Fruit Juice

Fair

Cranberry juice used for light antioxidant and conditioning effects.

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Valeriana Officinalis Rhizome/Root Extract

Fair

Valerian root extract used for its calming, herbal skin feel.

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Vanda Coerulea Extract (V1640i)

Fair

Blue orchid extract used for mild antioxidant and calming effects.

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Vanilla Planifolia (Vanilla) Fruit Extract

Fair

Vanilla bean extract prized for its warm scent and mild antioxidants.

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Vanillyl Butyl Ether

Fair

A vanilla-derived ingredient that creates a warming, tingling feel.

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Vetiveria Zizanoides (Vetiver) Root Oil

Fair

An earthy vetiver oil used to add depth and lasting power to scents.

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Vibrio Alginolyticus Ferment Filtrate

Fair

A marine ferment used to hydrate skin and support its barrier.

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Vigna Aconitifolia Seed Extract

Fair

Moth bean extract that may refine tone and texture with antioxidants.

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Vinegar

Fair

An acidic liquid used to adjust pH and gently dissolve residue.

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Vinylidene Chloride Copolymer

Fair

A film-forming plastic that helps makeup and hair products wear longer.

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Viola Mandshurica Flower Extract

Fair

Manchurian violet extract with calming and mild antioxidant effects.

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Viola Odorata Leaf Extract

Fair

Sweet violet leaf extract that softens and gently soothes skin.

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Vitamin B12

Fair

Mainly used to tint products a vivid pink-red; skin benefits are limited.

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Vitex Agnus-Castus Extract

Fair

Chaste tree extract used for mild conditioning and soothing effects.

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Vitis Vinifera (Grape) Root Extract

Fair

Grapevine root extract with modest antioxidant and conditioning effects.

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Vitis Vinifera (Grape) Seed Powder

Fair

Milled grape seeds used as a physical exfoliant to polish skin.

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Vitreoscilla Ferment

Fair

A fermented ingredient that supports comfort and barrier health.

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Voandzeia Subterranea Seed Extract

Fair

Bambara groundnut extract offering conditioning and antioxidant support.

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Volcanic Ash

Fair

Fine volcanic mineral powder that polishes skin and absorbs excess oil.

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Volcanic Sand

Fair

Coarse volcanic grains used to scrub away debris and smooth skin.

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Whey Protein

Fair

A milk protein that forms a light film and improves texture.

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White Mulberry (Morus Alba) Leaf Extract

Fair

Mulberry leaf extract used to even skin tone and add antioxidants.

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Wine

Fair

Fermented grape liquid used for antioxidants and a light astringent feel.

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Xymenynic Acid

Fair

A sandalwood seed oil fatty acid used to nourish and soften skin.

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Yeast Ferment Extract

Fair

A fermented yeast ingredient that adds light hydration and conditioning.

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Yellow 10 Lake (CI 47005)

Fair

A pigment used to give lipsticks and nail colors a bright, lasting hue.

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Yellow 5 (Cl 19140)

Fair

A synthetic dye, also called Tartrazine, that gives products a yellow hue.

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Yellow 5 Lake (CI 19140)

Fair

An insoluble form of Yellow 5 dye used to color oil-based makeup.

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Yellow 6 (CI 15985)

Fair

A synthetic dye that gives water-based products a vivid orange-yellow.

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Yellow 6 Lake (CI 15985)

Fair

An oil-dispersible form of Yellow 6 dye used in lipstick and powders.

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Yogurt

Fair

Fermented dairy that gently exfoliates, hydrates, and soothes skin.

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Yogurt Extract

Fair

A dairy-derived extract that adds light moisture and a soft finish.

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Yogurt Powder

Fair

Dehydrated yogurt solids used for light moisture and a smooth feel.

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Zanthoxylum Bungeanum Fruit Extract

Fair

Sichuan pepper extract added for a comforting, delicate skin feel.

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Zanthoxylum Piperitum Fruit Extract

Fair

Japanese pepper extract used for conditioning and possible antioxidants.

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Zea Mays (Corn) Kernel Extract

Fair

Corn kernel extract used for light conditioning and hydration.

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Zinc Aspartate

Fair

A chelated zinc form used to condition and calm blemish-prone skin.

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Zinc Citrate

Fair

A zinc salt used in oily, blemish-prone routines to help control shine.

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Zinc Glycinate

Fair

A chelated zinc form used for conditioning in breakout-prone care.

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Zinc Hydrolyzed Hyaluronate

Fair

A zinc-hyaluronic acid blend giving ultra-light hydration and slip.

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Zinc Stearate

Fair

A fine powder that reduces shine and smooths texture in makeup.

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Zinc Sulfate

Fair

A zinc salt used in toners for its mild astringent, oil-control effect.

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Zingiber Officinale (Ginger) Root Extract

Fair

Ginger root extract that adds antioxidants and a warming, radiant feel.

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Zingiber Officinale (Ginger) Root Oil

Fair

A spicy ginger essential oil used to add warmth to fragrance blends.

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Zingiber Zerumbet (Awapuhi) Extract

Fair

Awapuhi extract used for a light, soothing conditioning effect.

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Zizyphus Jujuba Fruit Extract

Fair

Jujube fruit extract that adds antioxidants and a smoother skin feel.

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Zizyphus Jujuba Seed Extract

Fair

Jujube seed extract used for a calming, conditioning effect.

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Zostera Marina Extract

Fair

Eelgrass extract that offers antioxidant and soothing benefits.

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Acetyl

Poor

A generic label term with a carrier role and no real skin benefit.

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Acrylonitrile

Poor

A harsh industrial solvent rarely used in cosmetics due to safety concerns.

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Amyl Cinnamal

Poor

A jasmine-like fragrance ingredient with no skincare benefit.

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Artemisia Vulgaris (Mugwort) Oil

Poor

A mugwort fragrance oil that can irritate sensitive skin.

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Butylphenyl Methylpropional

Poor

A floral fragrance ingredient now heavily restricted for allergies.

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C&A

Poor

A vaguely defined colorant used to tint products.

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Camphor

Poor

A sharp, cooling scent that can easily irritate sensitive skin.

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‭Capsicum Frutescens Resin‬

Poor

A concentrated pepper extract that creates an intense heat.

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Chloride

Poor

A salt ingredient used to fine-tune a formula's texture and stability.

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Cinnamal

Poor

A cinnamon-scented fragrance ingredient that can irritate sensitive skin.

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Cinnamomum Cassia Leaf Oil

Poor

A bold cinnamon-scented oil that can be sensitizing for some skin.

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Cinnamomum Zeylanicum Leaf Oil

Poor

A spicy Ceylon cinnamon leaf oil used mainly for scent.

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Citronellol

Poor

A rosy fragrance ingredient with little direct skin benefit.

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Diethyl Ether

Poor

A fast-evaporating solvent with strong odor and irritation risk.

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Dmdm Hydantoin

Poor

A preservative that can release formaldehyde and may irritate skin.

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Eugenol

Poor

A clove-scented compound that can trigger sensitivity in some.

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Flavor

Poor

A scent additive for lip products with no real skincare benefit.

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Geraniol

Poor

A rosy-scented fragrance ingredient that can trigger allergies.

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Glutaral

Poor

A strong preservative that fights microbes but may irritate skin.

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Glyoxal

Poor

A preservative that fights microbes but may irritate sensitive skin.

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Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde

Poor

A floral fragrance now avoided due to its high allergy risk.

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Hypochlorite Ion

Poor

A strong antimicrobial rarely used in skincare due to irritation risk.

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Limonene

Poor

A citrus fragrance ingredient that can irritate skin once oxidized.

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Menadione

Poor

A synthetic vitamin K used to stabilize formulas, with some irritation risk.

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Mentha Citrata (Bergamot Mint) Oil

Poor

A citrus-mint essential oil used mainly for its bright, floral scent.

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Mentha Viridis (Spearmint) Leaf Oil

Poor

A spearmint oil used mainly for its strong minty scent and cooling tingle.

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Menthol

Poor

A mint compound that creates an icy, tingling, cooling sensation.

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Methyl Methacrylate

Poor

An acrylic ingredient that forms a hard, glossy shield in nail products.

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Methylisothiazolinone

Poor

A preservative that keeps formulas fresh, though it can irritate some skin.

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Potassium Hydroxide

Poor

A strong alkaline ingredient used in tiny amounts to make soap.

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Potassium Iodide

Poor

A mineral salt used to condition skin and stabilize formulas.

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Quaternium-15

Poor

This preservative keeps products fresh but can trigger sensitivities.

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Rosin / Colophonium / Colophane

Poor

Pine resin that helps mascara and lash products grip and shine.

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Salvia Lavendulaefolia (Sage) Oil

Poor

Spanish sage oil mainly adds herbal fragrance to formulas.

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Sodium Dodecylbenzenesulfonate

Poor

A strong industrial-grade cleanser that can be harsh on skin.

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Thuja Occidentalis Leaf Oil

Poor

A cedar-derived scent oil with a sharp, resinous note; can irritate skin.

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