4.0
A gentle probiotic ingredient that may help balance skin bacteria and strengthen the skin barrier.
Irritation
low
Source
biotech
beautyskincareprobiotic
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 9 of 9
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
4.3
A gentle probiotic ingredient that helps strengthen the skin barrier and improve resilience, popular in K-beauty and sensitive-skin formulas.
Irritation
low
Source
biotech
beautyskincareprobiotic
Read ingredient review4.0
A probiotic ferment that may help calm irritation and support a healthy skin barrier, but research is still emerging.
Irritation
low
Source
biotech
beautyskincareprobiotic
Read ingredient reviewAntioxidant
Bifida Ferment Filtrate Complex
BIFIDA/HYDROLYZED MILK/LACTOSE/SODIUM ASCORBATE/SILICON FERMENT FILTRATE
4.0
A fermented probiotic-like ingredient that may help support skin barrier function and provide antioxidant benefits, but more human studies are needed.
Irritation
low
Source
biotech
beautyskincareantioxidantprobiotic
Read ingredient review4.3
A fermented probiotic ingredient that helps strengthen the skin barrier and improve resilience against environmental stressors.
Irritation
low
Source
biotech
beautyskincareprobiotic
Read ingredient review4.2
A gentle, fermented ingredient that helps strengthen the skin barrier and improve resilience against environmental stressors.
Irritation
low
Source
biotech
beautyskincareprobiotic
Read ingredient review4.3
A fermented probiotic-ginseng blend that may help strengthen the skin barrier and calm sensitivity, but more human studies are needed.
Irritation
low
Source
biotech
beautyskincarefermentprobiotic
Read ingredient review4.0
A gentle probiotic ferment that helps maintain a healthy skin microbiome and improve moisture retention.
Irritation
low
Source
biotech
beautyskincareprobiotic
Read ingredient review4.0
A gentle, probiotic-derived exfoliant that helps smooth skin and support a healthy microbiome without harsh irritation.
Irritation
low
Source
biotech
beautyskincareexfoliantprobiotic
Read ingredient review