Beauty ingredient research

Beauty ingredients explained in plain English

Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.

20769

Reviewed ingredients

524

Low-concern standouts

2884

Need usage caution

Showing 60 of 20,769
AllUV absorberUV filterabrasiveabsorbentacne treatmentactiveactive ingredientadhesivealkalizing agentamino acidanti-aginganti-androgenanti-cavityanti-cavity agentanti-inflammatoryanti-irritantanticariesanticavity agentantidandruffantifungalantimicrobialantioxidantantiperspirantantiplaqueastringentbarrier repairbarrier supportbarrier-repairbarrier-supportbinderbinding agentbiotechbiotechnologybond-builderbotanicalbotanical extractbotanical oilbotanical waterbrighteningbrightening agentbufferbuffering agentcell-communicating ingredientceramidechelating agentchemicalchemical intermediateclaycleansercleansingcleansing agentcolorantconditionerconditioningconditioning agentcooling agentcosmeticcosmetic additivecosmetic colorantcosmetic ingredientcosmetic pigmentcosmetic powdercosmetic-texturizercosmetic-waxcosmeticscrosslinking agentdelivery agentdelivery systemdenaturantdeodorantdeodorant agentdepigmenting agentdepilatorydepilatory agentdesensitizing agentdyedye intermediatedye precursordye-intermediateemollientemulsifierenzymeessential oilexfoliantexperimentaleyelashfermentfilm formerfilm-formerfilm-formingfilm-forming agentfirming agentfixativeflavoring agentformulationfragrancefragrance ingredientfunctional ingredientgashair carehair colorhair coloranthair conditionerhair dyehair removalhair-carehair-colorhaircarehumectantindustrialinsecticideintermediatelashlash carelash enhancerlash-and-browlip carelipidmakeupmarine extractmasking agentmicrobiomemicrobiome modulatormineralmoisturizernail carenail-careocclusiveoilopacifieropacifying agentoptical agentoral careotheroxidative dyeoxidative dye precursoroxidizing agentpH adjusterpain reliefpenetration enhancerpeptidepersonal careph adjusterpharmaceuticalpheromonepigmentplant oilplasticizerpolymerpolymer precursorprebioticprescription-drugpreservativepreservative boosterprobioticprocessing agentprocessing aidpropellantproteinpurifyingreducing agentretinoidscalp caresebum regulatorsebum-regulatorself-tannerself-tanningsensory additivesensory agentsensory modifiersiliconeskin barrierskin barrier supportskin conditionerskin conditioningskin conditioning agentskin lighteningskin protectantskin-conditioningskin-conditioning agentskin-identicalskin-identical ingredientskin-lighteningskin-lightening agentskincaresolventsoothingsoothing agentstabilizerstimulantsunscreensurfactantsyntheticsynthetic colorantsynthetic dyesynthetic resinsynthetic-coloranttexture enhancertexturizerthickenertoneruv-absorberuv-filtervasoactivevasodilatorviscosity controlviscosity controllingviscosity controlling agentvitaminwax

Surfactant

Disodium Stearoamphodiacetate

Disodium Stearoamphodiacetate

4.0

A gentle, non-stripping cleanser that helps maintain skin's moisture barrier while effectively removing dirt and oil.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
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Surfactant

Disodium Stearoyl Glutamate

Disodium Stearoyl Glutamate

4.5

A mild, amino-acid-based surfactant that cleanses without stripping the skin, making it ideal for sensitive and dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincarecleansingemulsifier
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Surfactant

Disodium Stearyl Sulfosuccinate

Disodium Stearyl Sulfosuccinate

4.0

A gentle, sulfate-free surfactant that effectively cleanses without stripping the skin barrier, making it ideal for sensitive or dry skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Buffering Agent

Disodium Succinate

Disodium Succinate

4.2

Disodium succinate is a gentle pH adjuster and mild humectant that helps maintain product stability without irritating skin.

Irritation

low

Source

synthetic

beautyskincarebuffering agent
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Surfactant

Disodium Sulfoacetate

Disodium Sulfoacetate

3.8

A gentle synthetic surfactant that effectively cleanses without stripping the skin, making it a good option for sensitive skin.

Irritation

low

Source

synthetic

beautyskincarecleansing
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Surfactant

Disodium Sulfolaurate/Myristate

DISODIUM 2-SULFOLAURATE/MYRISTATE

4.0

A gentle, biodegradable surfactant that cleans without stripping the skin, ideal for sensitive or dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincarecleansing
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Surfactant

Disodium Tallamido MEA-Sulfosuccinate

DISODIUM TALLAMIDO MEA-SULFOSUCCINATE

3.8

A gentle surfactant that cleanses effectively but is less common in modern formulations due to availability and preference for plant-based alternatives.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Disodium Tallowamido MEA-Sulfosuccinate

DISODIUM TALLOWAMIDO MEA-SULFOSUCCINATE

3.5

A gentle, animal-derived surfactant that cleanses effectively with low irritation potential, but may not suit those avoiding animal ingredients.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Disodium Tallowiminodipropionate

Disodium Tallowiminodipropionate

3.5

An effective cleanser from animal fat, but may be drying for sensitive skin and raises ethical concerns for some users.

Irritation

moderate

Source

natural

beautyskincarecleansing
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pH Adjuster

Disodium Tartrate

Disodium Tartrate

4.0

Disodium tartrate is a gentle pH adjuster and chelator that helps keep formulas stable and effective without irritating skin.

Irritation

low

Source

synthetic

beautyskincarepH adjuster
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Surfactant

Disodium Tetrapopenyl Succinate

DISODIUM TETRAPROPENYL SUCCINATE

3.5

An effective synthetic cleanser that can be drying for sensitive skin; best suited for normal to oily skin types.

Irritation

moderate

Source

synthetic

beautyskincarecleansing
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Antioxidant

Disodium Ubiquinone

DISODIUM UBIQUINONE

4.0

A water-friendly version of CoQ10 that delivers antioxidant protection and may help energize aging skin without the greasy feel of traditional CoQ10.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
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Skin conditioning agent

Disodium Uridine Phosphate

Disodium Uridine Phosphate

3.8

A gentle nucleotide that may help energize skin cells and support repair, but human studies are still limited.

Irritation

low

Source

biotech

beautyskincareactive
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Surfactant

Disoyamine

DISOYAMINE

3.5

Disoyamine is a functional surfactant that helps cleansers foam and rinse cleanly, but it may be slightly drying or irritating for sensitive skin.

Irritation

moderate

Source

semi-synthetic

beautyskincaresurfactant
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Antistatic Agent

Disoydimonium Chloride

Disoydimonium Chloride

3.8

A gentle conditioning ingredient that reduces static and softens hair without heavy buildup.

Irritation

low

Source

synthetic

beautyskincarehaircareconditioning agent
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Colorant

Disperse Black 9

Disperse Black 9

3.0

A synthetic hair dye that provides black color but may cause irritation or allergic reactions in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyhair-colordye
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Colorant

Disperse Blue 377

Disperse Blue 377

2.0

A synthetic blue dye that adds vibrant color to wash-off products but offers no skincare benefit and may cause irritation for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
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Colorant

Disperse Red 17

Disperse Red 17

2.8

Disperse Red 17 is a synthetic dye that adds red tones to cosmetics but may cause skin irritation or allergic reactions in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
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Colorant

Disperse Violet 1

Disperse Violet 1

3.0

Disperse Violet 1 is a synthetic dye that adds violet color to cosmetics, but it may cause skin irritation or allergic reactions in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
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Colorant

Disperse Violet 15

Disperse Violet 15

3.0

A synthetic violet dye used for color in cosmetics, but it may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
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Antioxidant

Disporum Sessile Leaf Extract

Disporum Sessile Leaf Extract

3.5

A gentle plant extract with antioxidant potential, but research is limited and it's not a standout ingredient.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Texture Enhancer

Distarch Glyceryl Ether

DISTARCH GLYCERYL ETHER

4.0

A gentle, starch-based ingredient that improves product feel and stability without common irritants.

Irritation

low

Source

semi-synthetic

beautyskincaretexturizer
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Thickener

Distarch Phosphate

DISTARCH PHOSPHATE

4.0

A gentle, starch-based thickener that improves product feel without common irritation or clogging concerns.

Irritation

low

Source

semi-synthetic

beautyskincaretexturizer
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Viscosity Controlling

Distear dimonium Hectorite

DISTEARDIMONIUM HECTORITE

4.0

A safe, effective thickener and stabilizer that helps keep formulas smooth and ingredients evenly mixed.

Irritation

low

Source

semi-synthetic

beautyskincarecosmetic
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Film Former

Distearate-100 IPDI

DISTEARETH-100 IPDI

3.8

A synthetic polymer that helps products stay put and resist water, but offers no active skincare benefit.

Irritation

low

Source

synthetic

beautyskincarefilm-former
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Film Former

Distearate-75 IPDI

DISTEARETH-75 IPDI

4.0

A synthetic film-former that helps products stay put and feel smooth, but offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincarefilm-former
Read ingredient review

Surfactant

Disteareth-5 Lauroyl Glutamate

DISTEARETH-5 LAUROYL GLUTAMATE

4.0

A mild, amino-acid-derived surfactant that cleanses without stripping the skin, making it ideal for sensitive or dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
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Antioxidant

Distearoyl Glyceryl Ascorbate

DISTEAROYL GLYCERYL ASCORBATE

4.5

A gentle, stable vitamin C derivative that brightens skin and fights free radicals without the irritation or short shelf life of pure L-ascorbic acid.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
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Antistatic Agent

Distearyl Epoxypropylmonium Chloride

DISTEARYL EPOXYPROPYLMONIUM CHLORIDE

3.5

A synthetic conditioning ingredient that reduces static and softens hair, but may cause irritation or clog pores in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarehaircare
Read ingredient review

Emollient

Distearyl Ether

DISTEARYL ETHER

4.0

A gentle, waxy emollient that helps thicken and stabilize creams without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emulsifier

Distearyl Lauroyl Glutamate

DISTEARYL LAUROYL GLUTAMATE

4.3

A mild, amino-acid-derived emulsifier that creates stable, creamy textures without stripping the skin.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Film Former

Distearyl Phthalic Acid Amide

DISTEARYL PHTHALIC ACID AMIDE

3.5

A synthetic film-former that helps products spread smoothly and hold their shape, but it has limited research and is not widely used.

Irritation

low

Source

synthetic

beautyskincarehaircare
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Emollient

Distearyl Thiodipropionate

DISTEARYL THIODIPROPIONATE

4.0

A gentle emollient and stabilizer that helps keep products smooth and extends their shelf life, with a very low risk of irritation.

Irritation

low

Source

synthetic

beautyskincareemollient
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