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 626
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

Sodium Cocoyl Taurate

Sodium Cocoyl Taurate

4.5

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

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Cocoyl Threoninate

Sodium Cocoyl Threoninate

4.3

A gentle, amino acid-based cleanser that effectively removes dirt and oil while respecting the skin barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Cornamphopropionate

SODIUM CORNAMPHOPROPIONATE

4.0

A gentle, coconut-derived surfactant that effectively cleanses while being kinder to sensitive skin than traditional sulfates.

Irritation

low

Source

semi-synthetic

beautyskincarehaircarecleanser
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Surfactant

Sodium Cottonseedamphoacetate

SODIUM COTTONSEEDAMPHOACETATE

4.0

A gentle, cottonseed-derived surfactant that cleanses without stripping the skin, ideal for sensitive or dry skin types.

Irritation

low

Source

natural

beautyskincarecleanser
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Surfactant

Sodium Cupheoyl Lactylate

Sodium Cupheoyl Lactylate

4.3

A mild, coconut-derived cleansing agent that effectively removes dirt and oil while helping maintain the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Decyl Sulfate

Sodium Decyl Sulfate

3.5

A mild surfactant that effectively cleanses without stripping the skin as harshly as stronger sulfates like SLS.

Irritation

moderate

Source

synthetic

beautyskincarecleanser
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Surfactant

Sodium Decylbenzenesulfonate

Sodium Decylbenzenesulfonate

3.5

An effective synthetic cleanser that can strip the skin's natural oils; best for oily or resilient skin types and not ideal for dry or sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincarecleanser
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Surfactant

Sodium Ethyl 2-Sulfolaurate

SODIUM ETHYL 2-SULFOLAURATE

4.3

A gentle, coconut-derived surfactant that cleanses effectively without the harshness of traditional sulfates.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Grapeseedate

Sodium Grapeseedate

4.0

A mild, plant-derived cleanser that effectively removes impurities while being gentle on the skin barrier.

Irritation

low

Source

natural

beautyskincarecleanser
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Surfactant

Sodium Hydrogenated Palmate

Sodium Hydrogenated Palmate

3.5

An effective but potentially drying soap ingredient that works well for oily skin but may strip moisture from dry or sensitive skin.

Irritation

moderate

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Isostareth-6 Carboxylate

SODIUM ISOSTEARETH-6 CARBOXYLATE

4.0

A gentle, semi-synthetic surfactant that cleanses without stripping the skin, making it a good choice for sensitive or dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Laneth Sulfate

SODIUM LANETH SULFATE

3.5

A gentle surfactant that cleans without stripping, but may not suit ultra-sensitive scalps or those avoiding ethoxylated ingredients.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Laureth Sulfate

Sodium Laureth Sulfate

3.5

An effective foaming cleanser that can be drying or irritating for sensitive skin, but is generally safe in rinse-off products.

Irritation

moderate

Source

synthetic

beautyskincarecleanser
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Surfactant

Sodium Laureth-11 Carboxylate

SODIUM LAURETH-11 CARBOXYLATE

4.0

A gentle, non-stripping surfactant that cleanses without disrupting the skin barrier, ideal for sensitive or dry skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Laureth-14 Carboxylate

SODIUM LAURETH-14 CARBOXYLATE

4.0

A gentle, non-stripping surfactant that effectively cleanses while being kinder to sensitive skin than traditional sulfates.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Laureth-17 Carboxylate

SODIUM LAURETH-17 CARBOXYLATE

4.0

A gentle, high-foaming surfactant that effectively cleanses without stripping the skin, making it a great alternative to harsher sulfates.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Laureth-7 Tartrate

Sodium Laureth-7 Tartrate

4.0

A gentle, sulfate-free surfactant that cleanses without stripping the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauriminodipropionate

Sodium Lauriminodipropionate

4.0

A gentle, low-irritation surfactant that helps create a rich lather without stripping the skin's natural moisture barrier.

Irritation

low

Source

synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroamphoacetate

Sodium Lauroamphoacetate

4.5

A gentle, coconut-derived surfactant that effectively cleanses without stripping the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Aspartate

Sodium Lauroyl Aspartate

4.3

A gentle, amino-acid-based cleanser that effectively removes dirt and oil while respecting the skin barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Collagen Amino Acids

Sodium Lauroyl Collagen Amino Acids

4.3

A mild, amino-acid-based cleanser that effectively removes dirt and oil without stripping the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Glycinate

Sodium Lauroyl Glycinate

4.5

A gentle, amino-acid-based cleanser that effectively removes dirt and oil while respecting the skin barrier.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Isethionate

Sodium Lauroyl Isethionate

4.5

A mild, coconut-derived cleanser that removes impurities without stripping the skin barrier, making it ideal for sensitive and dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Lactylate

Sodium Lauroyl Lactylate

4.5

A mild, skin-friendly surfactant that cleanses without stripping, making it ideal for sensitive or dry skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Oat Amino Acids

Sodium Lauroyl Oat Amino Acids

4.5

A mild, amino-acid-based surfactant that cleanses effectively while respecting the skin barrier—ideal for sensitive or dry skin.

Irritation

low

Source

natural

beautyskincarecleanser
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Surfactant

Sodium Lauroyl Silk Amino Acids

Sodium Lauroyl Silk Amino Acids

4.5

A mild, silk-derived surfactant that cleanses effectively while respecting the skin barrier, ideal for sensitive or dry skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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Surfactant

Sodium Lauryl Aspartate

Sodium Lauryl Aspartate

4.0

A gentle, amino-acid-based cleanser that effectively removes dirt and oil while being kind to sensitive skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
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