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 203
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

Viscosity Controlling Agent

PEG/PPG-30/160 Copolymer

PEG/PPG-30/160 Copolymer

3.8

A safe, synthetic thickener that gives water-based products a silky feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Emollient

Pelargonium Graveolens Wax

PELARGONIUM GRAVEOLENS WAX

4.0

A gentle, naturally derived wax that helps thicken and stabilize balms and creams while adding a light floral scent.

Irritation

low

Source

natural

beautyskincareemollienttexturizer
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Film Former

Perfluoro T-Butylcyclohexane

PERFLUORO T-BUTYLCYCLOHEXANE

3.5

A synthetic fluorinated ingredient that creates a smooth, breathable film on skin, but its environmental persistence raises concerns.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Texture Enhancer

Perfluorocyclohexylmethanol

PERFLUOROCYCLOHEXYLMETHANOL

3.5

A synthetic ingredient that gives products a silky feel and helps them spread smoothly, but it's not well-studied for long-term skin effects.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Polyacrylate

Polyacrylate

3.8

Polyacrylate is a safe, widely used synthetic thickener that gives products a smooth, gel-like texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Polyacrylate Crosspolymer-10

Polyacrylate Crosspolymer-10

4.0

A reliable synthetic thickener that gives products a silky, non-greasy feel without clogging pores or causing irritation.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate Crosspolymer-11

Polyacrylate Crosspolymer-11

4.0

A safe, synthetic thickener that gives water-based products a silky, lightweight feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate Crosspolymer-14

Polyacrylate Crosspolymer-14

3.8

A safe, synthetic thickener that gives skincare products a silky, non-greasy feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Viscosity Controlling

Polyacrylate Crosspolymer-3

Polyacrylate Crosspolymer-3

3.8

A reliable synthetic thickener that gives a smooth, non-greasy feel, but offers no active skin benefits.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate Crosspolymer-4

POLYACRYLATE CROSSPOLYMER-4

4.0

A synthetic thickener and stabilizer that gives gels and creams a smooth, silky feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Polyacrylate Crosspolymer-5

Polyacrylate Crosspolymer-5

4.0

A safe, synthetic thickener that gives skincare products a silky, lightweight feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate Crosspolymer-6

Polyacrylate Crosspolymer-6

4.0

A reliable synthetic thickener that gives products a silky, non-sticky feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Polyacrylate Crosspolymer-8

Polyacrylate Crosspolymer-8

3.8

A reliable synthetic thickener that gives products a silky, non-greasy feel with minimal irritation risk.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate Crosspolymer-9

Polyacrylate Crosspolymer-9

4.0

A reliable synthetic thickener that improves product feel and stability with a very low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Polyacrylate-2 Crosspolymer

Polyacrylate-2 Crosspolymer

4.0

A safe, synthetic thickener and stabilizer that gives products a smooth, lightweight feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Film Former

Polyacrylate-32

Polyacrylate-32

4.0

A safe, synthetic thickener and film-former that gives skincare products a smooth, non-sticky feel.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Film Former

Polyacrylate-33

Polyacrylate-33

3.8

Polyacrylate-33 is a synthetic polymer that helps products spread smoothly and feel lightweight, but it offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling Agent

Polyacrylate-37

POLYACRYLATE-37

3.8

A safe, effective thickener that improves product feel and stability, but offers no direct skin benefit.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Film Former

Polyacrylate-38

Polyacrylate-38

3.8

A synthetic polymer that helps create smooth, lightweight gel textures and a subtle film on skin, generally considered safe and non-irritating.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Polyacrylic Acid

Polyacrylic Acid

4.0

A safe, effective thickener that gives gels and creams a smooth, non-greasy feel, but can pill if not formulated well.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Texture Enhancer

Polyamide-12

Polyamide-12

4.0

Polyamide-12 is a safe, non-irritating synthetic powder that improves product feel and controls shine without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Texture enhancer

Polycaprylylsilsesquioxane

Polycaprylylsilsesquioxane

4.0

A gentle silicone powder that gives a silky, matte finish and helps products glide on smoothly.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Film Former

Polymethyl Methacrylate

Polymethyl Methacrylate

3.8

A safe synthetic powder that gives a silky feel and blurs imperfections without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Film Former

Potassium Acrylates Copolymer

POTASSIUM ACRYLATES/ETHYLHEXYL ACRYLATE COPOLYMER

4.0

A safe, synthetic polymer that gives products a silky feel and helps them spread evenly without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Potassium Aluminum Polyacrylate

POTASSIUM ALUMINUM POLYACRYLATE

3.5

A synthetic thickener that gives water-based products a smooth, gel-like feel; generally safe but not a functional active ingredient.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Texture Enhancer

PPG-120 Butyl Ether

PPG-120 Butyl Ether

4.0

A synthetic polymer that improves product feel and spreadability without common irritation.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Emollient

PPG-90 Butyl Ether

PPG-90 Butyl Ether

4.0

A lightweight synthetic emollient that improves product feel and spreadability without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollienttexturizer
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Texture Enhancer

PTFE

PTFE

2.5

PTFE adds a silky, smooth feel to makeup but raises environmental and health concerns due to its persistence and potential contamination with PFAS.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Viscosity Controlling

Quaternium-90 Sepiolite

QUATERNIUM-90 SEPIOLITE

3.8

A gentle clay-derived thickener that improves product feel without common irritation concerns.

Irritation

low

Source

semi-synthetic

beautyskincaretexturizer
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Thickener

Sclerotium Gum

SCLEROTIUM GUM

4.5

A gentle, natural thickener that gives products a silky feel and helps stabilize formulas without clogging pores.

Irritation

low

Source

natural

beautyskincaretexturizer
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Skin Conditioning Agent

Sec-Butylphenyl Ethyl Glyceryl Diether

SEC-BUTYLPHENYL ETHYL GLYCERYL DIETHER

3.5

A synthetic skin-conditioning ingredient that improves product feel and spreadability, with limited but promising safety data.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Absorbent

Sepiolite Extract

Sepiolite

3.8

A gentle clay mineral that helps absorb excess oil and improve product texture without stripping the skin.

Irritation

low

Source

natural

beautyskincaretexturizer
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Absorbent

Silica

Silica

4.0

Silica is a safe, non-irritating mineral that improves product texture and absorbs excess oil, but can be drying if overused.

Irritation

low

Source

natural

beautyskincaretexturizer
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Absorbent

Silica Caprylyl Silylate

SILICA CAPRYLYL SILYLATE

4.0

A safe, non-irritating powder ingredient that helps control shine and gives a silky feel to makeup and skincare.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Texture Enhancer

Silica Cetyl Silylate

SILICA CETYL SILYLATE

4.0

A silica derivative that gives products a silky feel and helps control shine without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincaretexturizer
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Absorbent

Silica Dimethicone Silylate

Silica Dimethicone Silylate

4.0

A silicone-treated silica that gives a silky, blurring finish and helps control oil, but may not suit those avoiding silicones.

Irritation

low

Source

semi-synthetic

beautyskincaretexturizer
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Absorbent

Silica Dimethyl Silylate

SILICA DIMETHYL SILYLATE

4.0

A safe, non-irritating powder that helps control shine and gives a silky feel to makeup and skincare.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Film Former

Silicone Crosspolymer Blend

Polyglyceryl-3/lauryl polydimethylsiloxyethyl dimethicone crosspolymer

4.0

A gentle silicone polymer that improves product feel and wear without clogging pores or causing irritation.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Film Former

Silicone Elastomer Blend

Dimethicone/Lauryl Dimethicone/Bis-Vinyldimethicone Crosspolymer

4.0

A silicone blend that gives products a silky, smooth feel and helps blur imperfections without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Sodium Acrylate Copolymer

SODIUM ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER

4.0

A safe, synthetic thickener that gives skincare products a silky, lightweight feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Sodium Acrylates Copolymer

SODIUM ACRYLATES/VINYL ISODECANOATE CROSSPOLYMER

4.0

A safe, synthetic thickener that gives gels and creams a smooth, non-sticky feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Sodium Acrylates Crosspolymer

SODIUM ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER

4.0

A safe, widely used synthetic thickener that gives products a silky, non-greasy feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Thickener

Sodium Acrylates Crosspolymer-2

SODIUM ACRYLATES CROSSPOLYMER-2

4.0

A reliable synthetic thickener that gives skincare products a silky, non-sticky feel without clogging pores or causing irritation.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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Bulking Agent

Sodium Calcium Boron Phosphate

SODIUM CALCIUM BORON PHOSPHATE

3.5

A safe, non-irritating mineral powder that improves texture and slip in makeup, but offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincaretexturizer
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