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

Emollient

Glycereth-6 Laurate

GLYCERETH-6 LAURATE

4.0

A gentle, water-loving emollient that softens skin and helps cleansers feel less stripping, with a low risk of irritation or clogged pores.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
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Emollient

Glycereth-6 Tricocoate

GLYCERETH-6 TRICOCOATE

4.0

A mild, coconut-derived emollient that helps soften skin without clogging pores, making it a good choice for sensitive and oily skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-6 Triisostearate

GLYCERETH-6 TRIISOSTEARATE

4.0

A gentle, synthetic emollient that helps products spread smoothly and feel silky without clogging pores or causing irritation.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emulsifier

Glycereth-6 Trioleate

GLYCERETH-6 TRIOLEATE

4.0

Glycereth-6 Trioleate is a gentle emulsifier that helps create stable, creamy textures in skincare products without common irritation concerns.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Humectant

Glycereth-7

Glycereth-7

4.3

A gentle, water-loving ingredient that helps your skin hold onto moisture without feeling greasy.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
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Emollient

Glycereth-7 Benzoate

GLYCERETH-7 BENZOATE

4.0

Glycereth-7 Benzoate is a gentle, semi-synthetic emollient that helps products feel silky and spread easily without clogging pores or causing irritation.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-7 Caprylate/Caprate

GLYCERETH-7 CAPRYLATE/CAPRATE

4.3

A gentle, water-friendly emollient that softens skin without a greasy feel, ideal for lightweight formulas.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emulsifier

Glycereth-7 Cocoate

GLYCERETH-7 COCOATE

4.0

A gentle, coconut-derived emulsifier that helps blend oil and water in your skincare, with a low risk of irritation.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Emollient

Glycereth-7 Diisononanoate

GLYCERETH-7 DIISONONANOATE

4.0

A gentle, synthetic emollient that softens skin without clogging pores, ideal for lightweight formulas.

Irritation

low

Source

synthetic

beautyskincareemollient
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Humectant

Glycereth-7 Glycolate

GLYCERETH-7 GLYCOLATE

4.0

A gentle humectant with mild exfoliating properties, suitable for most skin types including sensitive skin.

Irritation

low

Source

semi-synthetic

beautyskincarehumectantexfoliant
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Humectant

Glycereth-7 Lactate

GLYCERETH-7 LACTATE

4.0

A mild, effective humectant that hydrates without clogging pores, suitable for most skin types.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
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Emollient

Glycereth-7 Triacetate

GLYCERETH-7 TRIACETATE

4.0

A gentle, modified glycerin that helps soften and smooth skin without the sticky feel of plain glycerin.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Film Former

Glycereth-7/IPDI Copolymer

GLYCERETH-7/IPDI COPOLYMER

4.0

A gentle film-forming polymer that helps products stay put and resist water without feeling heavy or sticky.

Irritation

low

Source

synthetic

beautyskincarefilm-former
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Emulsifier

Glycereth-8 Hydroxystearate

GLYCERETH-8 HYDROXYSTEARATE

4.0

A gentle emulsifier that helps blend oil and water in skincare formulas without stripping the skin.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Humectant

Glycerin

Glycerin

4.8

Glycerin is a superstar humectant that hydrates the skin without clogging pores, making it suitable for nearly all skin types.

Irritation

low

Source

natural

beautyskincarehumectant
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Humectant

Glycerin Dimethyl Ether

Glycerin Dimethyl Ether

4.0

A gentle, synthetic humectant that hydrates skin without the sticky feel of glycerin, making it a good option for lightweight formulas.

Irritation

low

Source

synthetic

beautyskincarehumectant
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Humectant

Glycerin Methyl Ether

GLYCERIN METHYL ETHER

4.0

A gentle, water-attracting humectant that helps keep skin hydrated without the sticky feel of plain glycerin.

Irritation

low

Source

synthetic

beautyskincarehumectant
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Film Former

Glycerin/Phthalic Acid Copolymer

GLYCERIN/PHTHALIC ACID COPOLYMER HYDROXYPROPYL C9-11 ISOALKYL ACIDATE

3.5

A synthetic film-former that helps products stay put, but its phthalate-related name may raise unnecessary concern.

Irritation

low

Source

synthetic

beautyskincarefilm-former
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Film Former

Glycerin/Phthalic Acid Copolymer Castorate

GLYCERIN/PHTHALIC ACID COPOLYMER CASTORATE

3.8

A film-forming polymer that helps products stay put and resist water, but its phthalic acid component raises mild safety questions despite being bound in a polymer.

Irritation

low

Source

semi-synthetic

beautyskincarehaircare
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Film Former

Glyceryl Abietate

Glyceryl Abietate

3.8

A natural resin derivative that helps fragrances last longer and creates a flexible film on skin or hair.

Irritation

low

Source

natural

beautyskincarefragrance
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Film Former

Glyceryl Abietate/Maleate

GLYCERYL ABIETATE/MALEATE

3.8

A pine-derived film former that helps makeup and skincare stay put longer, especially in water-resistant formulas.

Irritation

low

Source

semi-synthetic

beautyskincarefilm-former
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Humectant

Glyceryl Acetate

Glyceryl Acetate

4.0

A gentle, water-attracting ingredient that helps hydrate the skin and improve the feel of cosmetic formulas without common irritation.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
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Emollient

Glyceryl Adipate

Glyceryl Adipate

4.0

A gentle emollient that hydrates and smooths skin without clogging pores, suitable for most skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Humectant

Glyceryl Allyl Ether

GLYCERYL ALLYL ETHER

3.5

A synthetic humectant that helps hydrate skin and improve product feel, generally well-tolerated but less studied than glycerin.

Irritation

low

Source

synthetic

beautyskincarehumectant
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Emollient

Glyceryl Arachidate

Glyceryl Arachidate

4.0

A gentle, plant-based emollient that softens skin and improves product feel without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Glyceryl Arachidonate

Glyceryl Arachidonate

4.0

A gentle, barrier-supporting ester that helps skin feel soft and hydrated without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Antioxidant

Glyceryl Ascorbate

GLYCERYL ASCORBATE

4.3

A gentle, stable vitamin C derivative that brightens skin and fights free radicals without the irritation of pure ascorbic acid.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
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Emollient

Glyceryl Behenate

Glyceryl Behenate

4.2

A gentle, plant-based emollient that improves product texture and skin feel without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Glyceryl Behenate/Eicosadioate

GLYCERYL BEHENATE/EICOSADIOATE

4.0

A gentle, non-greasy emollient that helps soften and smooth the skin with a low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glyceryl Caprate

Glyceryl Caprate

4.5

A mild, plant-derived emollient that helps soften skin and stabilize formulas without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Glyceryl Capryl Ether

GLYCERYL CAPRYL ETHER

4.0

A gentle, non-greasy emollient that helps soften skin and stabilize formulas without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glyceryl Caprylate

Glyceryl Caprylate

4.5

A mild, skin-friendly ingredient that helps products feel smooth and spread easily without clogging pores.

Irritation

low

Source

natural

beautyskincareemollientemulsifier
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Emollient

Glyceryl Caprylate/Caprate

GLYCERYL CAPRYLATE/CAPRATE

4.5

A gentle, plant-derived emollient and emulsifier that softens skin and helps stabilize formulas without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Antioxidant

Glyceryl Chromonyl Ether

Glyceryl Chromonyl Ether

3.8

A synthetic antioxidant that may help shield skin from pollution and UV damage, but human studies are still limited.

Irritation

low

Source

synthetic

beautyskincareantioxidant
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Emollient

Glyceryl Cocoate

Glyceryl Cocoate

4.2

Glyceryl cocoate is a mild, coconut-derived ingredient that moisturizes and helps blend oil and water in your skincare products.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Glyceryl Cocoate/Citrate/Lactate

GLYCERYL COCOATE/CITRATE/LACTATE

4.3

A gentle, plant-derived emollient that softens skin and helps other ingredients work better, with very low irritation potential.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emulsifier

Glyceryl Cocoyl Leucinate

GLYCERYL COCOYL LEUCINATE

4.5

A mild, coconut-derived emulsifier that helps blend oil and water in products while leaving skin feeling soft and conditioned.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Humectant

Glyceryl Collagenate

GLYCERYL COLLAGENATE

3.8

A gentle, water-soluble collagen derivative that helps hydrate and temporarily smooth the skin's surface, but it does not replace lost collagen deep in the skin.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
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Emollient

Glyceryl Diarachidate

Glyceryl Diarachidate

4.0

A gentle, non-greasy emollient that helps creams feel smooth and luxurious without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glyceryl Dibehenate

Glyceryl Dibehenate

4.0

A gentle, non-greasy emollient that helps products feel silky and spread smoothly without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glyceryl Dierucate

Glyceryl Dierucate

4.0

A gentle emollient that helps soften and smooth skin without clogging pores, ideal for dry or sensitive skin.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glyceryl Diethylsiloxane

GLYCERYL DIETHYLSILOXANES

3.5

A gentle silicone that helps products glide on smoothly without clogging pores, but offers minimal active skincare benefits.

Irritation

low

Source

synthetic

beautyskincaresilicone
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Antioxidant

Glyceryl Diferulate

Glyceryl Diferulate

4.3

A gentle, fat-soluble antioxidant that helps shield skin from pollution and UV damage while supporting a brighter, more even complexion.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
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Emollient

Glyceryl Dihydroxystearate

Glyceryl Dihydroxystearate

4.0

A mild, plant-based emollient that improves product texture and skin feel without clogging pores or causing irritation.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glyceryl Diisopalmitate

GLYCERYL DIISOPALMITATE

4.0

A gentle, non-greasy emollient that helps moisturize and improve product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
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