3.5
A common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin and has ongoing safety discussions.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient reviewBeauty 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 16 of 16
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
3.8
A common antiperspirant ingredient that effectively reduces sweat but may cause irritation for some and has been the subject of safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.8
Effective at reducing underarm sweat, but may cause irritation for sensitive skin and has been the subject of long-standing safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
A common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.8
A common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
Aluminum salts are effective antiperspirants but have been the subject of safety debates; current evidence supports their safety in cosmetics at regulated levels.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.8
A common antiperspirant ingredient that effectively reduces underarm wetness but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
Aluminum Sesquichlorohydrex PEG is a common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
Effective at reducing sweat, but may cause irritation for sensitive skin and has been linked to safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.8
A widely used antiperspirant ingredient that effectively reduces sweat but may cause irritation for some, especially after shaving.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient reviewAntiperspirant Agent
Aluminum Zirconium Pentachlorohydrex Gly
Aluminum Zirconium Pentachlorohydrex Gly
3.8
A widely used antiperspirant active that effectively reduces underarm wetness but may cause irritation for sensitive skin and has raised long-term safety questions.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
A widely used antiperspirant active that works by temporarily blocking sweat ducts, but may cause irritation for some and has been the subject of long-standing safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient reviewAntiperspirant Agent
Aluminum Zirconium Tetrachlorohydrex Gly
Aluminum Zirconium Tetrachlorohydrex Gly
3.5
A common antiperspirant active that effectively reduces sweat but may cause irritation for sensitive skin and has been linked to safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient reviewAntiperspirant Agent
Aluminum Zirconium Tetrachlorohydrex PEG
ALUMINUM ZIRCONIUM TETRACHLOROHYDREX PEG
3.5
An effective antiperspirant ingredient that reduces sweat but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.5
Effective at reducing underarm sweat, but may cause irritation for sensitive skin and has been the subject of safety debates.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review3.8
An FDA-approved antiperspirant active that effectively reduces underarm sweat but may cause skin irritation in some people.
Irritation
moderate
Source
synthetic
beautypersonal careantiperspirant
Read ingredient review