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 12 of 612
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

Anti-aging agent

Tripeptide-60

Tripeptide-60

4.0

Tripeptide-60 is a synthetic peptide that may help support skin firmness and reduce fine lines, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
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Anti-aging agent

Tripeptide-65

Tripeptide-65

4.0

A lab-made peptide that may help firm skin and soften lines, but human studies are still limited.

Irritation

low

Source

synthetic

beautyskincareanti-aging
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Anti-aging agent

Tripeptide-65 Dimer

Tripeptide-65 Dimer

3.8

A synthetic peptide that may help firm skin and soften lines, but research is still early and results vary.

Irritation

low

Source

synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Tripeptide-67

Tripeptide-67

4.0

Tripeptide-67 is a lab-made peptide that may help firm skin and soften fine lines, though research is still early compared to more established peptides.

Irritation

low

Source

synthetic

beautyskincareanti-aging
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Anti-aging agent

Tripeptide-9 Citrulline

Tripeptide-9 Citrulline

4.0

A synthetic peptide that may help improve skin firmness and reduce fine lines, with a good safety profile for most skin types.

Irritation

low

Source

synthetic

beautyskincareanti-aging
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Anti-aging agent

Tripotassium Ursolyl Phosphate

Tripotassium Ursolyl Phosphate

4.0

A plant-derived compound modified for stability that may help firm skin and reduce fine lines, but human studies are limited.

Irritation

low

Source

semi-synthetic

beautyskincareanti-aging
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Anti-aging agent

Ursoloyl Tripeptide-1

Ursoloyl Tripeptide-1

4.0

A promising synthetic peptide that may help improve skin firmness and reduce fine lines, but more human studies are needed to confirm its effectiveness.

Irritation

low

Source

semi-synthetic

beautyskincareanti-aging
Read ingredient review

Anti-aging agent

Ursoloyl Tripeptide-35

Ursoloyl Tripeptide-35

3.8

A synthetic peptide that may help improve skin firmness and smooth fine lines, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincareanti-aging
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Anti-aging agent

Yeast Peptide Complex

R-SACCHAROMYCES POLYPEPTIDE-1, HEXAPEPTIDE-40, HEXAPEPTIDE-41, SH-OLIGOPEPTIDE-1

4.0

A promising peptide blend that may help firm skin and soften fine lines, but more human studies are needed to confirm its effects.

Irritation

low

Source

mixed

beautyskincareanti-aging
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