4.0
Yeast extract is a gentle, nutrient-rich ingredient that helps hydrate and condition the skin, but it's not a miracle cure for aging or acne.
Irritation
low
Source
natural
beautyskincarehumectant
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 14 of 1,094
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, fermented yeast ingredient that helps hydrate and condition the skin, popular in K-beauty essences.
Irritation
low
Source
biotech
beautyskincarehumectant
Read ingredient review4.3
A gentle, fermented ingredient that helps hydrate and support a healthy-looking skin barrier without irritation.
Irritation
low
Source
biotech
beautyskincarehumectant
Read ingredient reviewHumectant
Yeast Fermented Artichoke Extract
SACCHAROMYCES/HYDROLYZED STACHYS AFFINIS TUBER FERMENT FILTRATE
4.0
A gentle, fermented botanical extract that helps hydrate and protect the skin with antioxidant benefits.
Irritation
low
Source
biotech
beautyskincarehumectantantioxidant
Read ingredient review4.3
A gentle, fermented yeast extract that helps hydrate and strengthen the skin barrier without irritation.
Irritation
low
Source
biotech
beautyskincarehumectant
Read ingredient review4.0
A gentle, fermented yeast ingredient that delivers magnesium to help hydrate and strengthen the skin barrier.
Irritation
low
Source
biotech
beautyskincarehumectant
Read ingredient review4.0
A gentle, biotech-derived ingredient that pairs yeast ferment with niacinamide to help hydrate, soothe, and support a healthy-looking skin barrier.
Irritation
low
Source
biotech
beautyskincarehumectantsoothing
Read ingredient review4.0
A gentle, biotech-derived ingredient that pairs yeast fermentation with a peptide to support skin hydration and barrier function.
Irritation
low
Source
biotech
beautyskincarehumectantconditioning agent
Read ingredient review3.8
Yogurt offers gentle exfoliation and hydration thanks to its natural lactic acid and probiotic content, but its benefits in skincare are modest and best for normal to dry skin types.
Irritation
low
Source
natural
beautyskincarehumectantexfoliant
Read ingredient review4.0
A gentle, lactic acid-rich ferment that exfoliates and hydrates without the harshness of stronger acids.
Irritation
low
Source
natural
beautyskincareexfolianthumectant
Read ingredient review4.0
Yucca Fruit Juice is a gentle, plant-based humectant that helps hydrate and soothe the skin, with mild antioxidant benefits.
Irritation
low
Source
natural
beautyskincarehumectant
Read ingredient review3.8
Zinc Fructose Diphosphate is a gentle, zinc-based ingredient that may help calm skin and support barrier repair, but research is still limited.
Irritation
low
Source
semi-synthetic
beautyskincarehumectant
Read ingredient review4.0
A gentle, hydrating ingredient that pairs hyaluronic acid's moisture-binding power with zinc's calming benefits.
Irritation
low
Source
semi-synthetic
beautyskincarehumectant
Read ingredient review4.0
A gentle, biotech-derived ferment that helps hydrate and calm the skin, with early research suggesting antioxidant benefits.
Irritation
low
Source
biotech
beautyskincarehumectant
Read ingredient review