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 1,097
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

Poloxamer 181

Poloxamer 181

4.0

Poloxamer 181 is a gentle synthetic emulsifier that helps mix oil and water, making it a common helper in cleansers and lotions.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 182

Poloxamer 182

4.0

Poloxamer 182 is a gentle synthetic surfactant that helps cleanse without stripping the skin's natural moisture barrier.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 183

Poloxamer 183

4.0

Poloxamer 183 is a gentle synthetic emulsifier that helps mix oil and water, making it a common choice for cleansers and lotions.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 185

Poloxamer 185

4.0

A gentle synthetic emulsifier that helps mix oil and water, widely used in cleansers and lotions for its mildness.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 188

Poloxamer 188

4.0

Poloxamer 188 is a gentle synthetic emulsifier that helps blend oil and water in skincare, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 212

Poloxamer 212

4.0

Poloxamer 212 is a gentle synthetic surfactant that helps cleansers foam and rinse cleanly without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 215

Poloxamer 215

4.0

Poloxamer 215 is a gentle synthetic emulsifier that helps blend oil and water in cleansers without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 217

Poloxamer 217

4.0

Poloxamer 217 is a gentle synthetic emulsifier that helps blend oil and water in skincare formulas without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 231

Poloxamer 231

4.0

Poloxamer 231 is a gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions, with a low irritation profile.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 234

Poloxamer 234

4.2

A gentle synthetic emulsifier that helps mix oil and water in skincare products without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 238

Poloxamer 238

4.0

A mild synthetic emulsifier that helps mix oil and water, making cleansers and lotions feel smooth without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 251

Poloxamer 251

4.0

Poloxamer 251 is a gentle, synthetic ingredient that helps cleansers remove dirt and oil without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 282

Poloxamer 282

3.8

Poloxamer 282 is a gentle synthetic emulsifier that helps mix oil and water, making it a common choice in mild cleansers and makeup removers.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Poloxamer 284

Poloxamer 284

4.0

Poloxamer 284 is a gentle synthetic emulsifier that helps mix oil and water, making it a common choice for mild cleansers and makeup removers.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 288

Poloxamer 288

4.0

A gentle synthetic emulsifier that helps mix water and oil, commonly used in cleansers and shampoos for its mildness.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 333

Poloxamer 333

4.0

Poloxamer 333 is a gentle synthetic emulsifier that helps mix oil and water in skincare products without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 334

POLOXAMER 334

4.0

Poloxamer 334 is a gentle synthetic emulsifier that helps mix oil and water in skincare, with a low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 335

Poloxamer 335

4.0

Poloxamer 335 is a gentle synthetic ingredient that helps mix oil and water in cleansers and lotions, making products feel smooth without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 338

Poloxamer 338

4.0

A gentle synthetic emulsifier that helps cleansers rinse cleanly without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 401

Poloxamer 401

4.0

A mild synthetic emulsifier that helps mix oil and water, generally safe and well-tolerated in skincare.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 402

POLOXAMER 402

4.0

Poloxamer 402 is a gentle synthetic ingredient that helps cleansers and makeup removers work effectively without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamer 407

Poloxamer 407

4.0

Poloxamer 407 is a gentle, synthetic emulsifier that helps mix oil and water in skincare products without causing irritation or clogging pores.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1101

Poloxamine 1101

4.0

Poloxamine 1101 is a gentle synthetic emulsifier that helps mix oil and water in skincare products without causing irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1102

POLOXAMINE 1102

4.0

A gentle synthetic emulsifier that helps mix oil and water in skincare, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1104

Poloxamine 1104

4.0

A gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions with low irritation risk.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1301

Poloxamine 1301

4.0

A gentle synthetic surfactant that helps cleanse and stabilize products without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1302

Poloxamine 1302

3.8

A gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Poloxamine 1304

POLOXAMINE 1304

4.0

Poloxamine 1304 is a gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1307

Poloxamine 1307

4.0

Poloxamine 1307 is a gentle synthetic ingredient that helps mix oil and water in formulas, making cleansers and lotions more stable and less irritating.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1501

Poloxamine 1501

4.0

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

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Poloxamine 1502

POLOXAMINE 1502

4.0

Poloxamine 1502 is a gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions, with a low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1504

Poloxamine 1504

4.0

A gentle synthetic surfactant that helps cleanse without stripping the skin barrier.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 1508

Poloxamine 1508

4.0

Poloxamine 1508 is a gentle synthetic ingredient that helps cleanse and stabilize formulas without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 304

Poloxamine 304

4.0

Poloxamine 304 is a gentle synthetic emulsifier that helps mix water and oil in skincare products, with a low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 504

Poloxamine 504

3.8

A mild synthetic surfactant that helps cleanse without stripping the skin, but offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Poloxamine 604

Poloxamine 604

4.0

Poloxamine 604 is a gentle synthetic emulsifier that helps blend oil and water in cleansers and lotions, with a low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 702

POLOXAMINE 702

4.0

Poloxamine 702 is a mild synthetic ingredient that helps mix oil and water, making cleansers and makeup removers more effective without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 704

Poloxamine 704

4.0

Poloxamine 704 is a gentle synthetic ingredient that helps mix oil and water in cleansers and lotions, with a low risk of irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 901

POLOXAMINE 901

4.0

Poloxamine 901 is a gentle synthetic ingredient that helps mix oil and water, making it useful in cleansers and lotions without causing irritation.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Poloxamine 904

Poloxamine 904

4.0

Poloxamine 904 is a gentle synthetic ingredient that helps cleansers and makeup removers work effectively without stripping the skin.

Irritation

low

Source

synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Polyglyceryl-10 Caprylate

Polyglyceryl-10 Caprylate

4.5

A mild, skin-friendly emulsifier that effectively blends ingredients without stripping the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
Read ingredient review

Emulsifier

Polyglyceryl-20 Lauryl Ether

Polyglyceryl-20 Lauryl Ether

4.3

A gentle, non-stripping emulsifier that helps create stable, lightweight formulas without irritating the skin.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Potassium Abietoyl Hydrolyzed Collagen

POTASSIUM ABIETOYL HYDROLYZED COLLAGEN

3.8

A gentle, amino-acid-based surfactant that cleanses without stripping, making it a good choice for sensitive or dry skin and hair.

Irritation

low

Source

semi-synthetic

beautyskincarehaircaresurfactant
Read ingredient review

Surfactant

Potassium Borageate

Potassium Borageate

4.0

A gentle, plant-derived cleansing agent that helps remove dirt and oil without stripping the skin, making it suitable for sensitive skin.

Irritation

low

Source

natural

beautyskincaresurfactant
Read ingredient review

Surfactant

Potassium Cocoyl Hydrolyzed Collagen

Potassium Cocoyl Hydrolyzed Collagen

4.0

A mild, coconut-derived cleanser that also helps hair and skin feel soft, but its collagen content is too large to penetrate deeply.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
Read ingredient review

Surfactant

Potassium Cornate

POTASSIUM CORNATE

3.8

A gentle, plant-derived cleansing agent that effectively removes dirt and oil without stripping the skin.

Irritation

low

Source

natural

beautyskincaresurfactant
Read ingredient review

Surfactant

Potassium Cumenesulfonate

POTASSIUM CUMENESULFONATE

4.0

Potassium Cumenesulfonate is a mild synthetic surfactant that helps keep formulas clear and stable, but it can be slightly drying for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincaresurfactant
Read ingredient review