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 2,268
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

Emollient

Isopropyl Lauroyl Sarcosinate

Isopropyl Lauroyl Sarcosinate

4.0

A gentle, lightweight emollient that helps products glide on smoothly without a greasy feel, suitable for most skin types.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Myristate

Isopropyl Myristate

3.5

A lightweight emollient that makes products feel silky, but can clog pores for some people.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Octanoate

Isopropyl Octanoate

4.0

A lightweight synthetic emollient that softens skin without greasiness, but may clog pores for some.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Oleate

Isopropyl Oleate

3.5

A lightweight emollient that makes products feel silky, but it can clog pores for acne-prone skin.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Palmitate

Isopropyl Palmitate

3.8

A lightweight synthetic emollient that makes products feel silky, but may clog pores in acne-prone individuals.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Ricinoleate

Isopropyl Ricinoleate

4.0

A gentle, non-greasy emollient that softens skin and helps other ingredients spread smoothly.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Sorbate

Isopropyl Sorbate

4.0

Isopropyl Sorbate is a lightweight synthetic emollient that helps soften and smooth the skin without a greasy feel.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropyl Tallowate

Isopropyl Tallowate

3.5

Isopropyl Tallowate is a fatty emollient that softens skin but may clog pores for some people.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isopropylmethylcyclohexane

ISOPROPYLMETHYLCYCLOHEXANE

4.0

A lightweight synthetic emollient that spreads easily and leaves a non-greasy finish, generally well-tolerated by most skin types.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isosorbide Dicaprylate

Isosorbide Dicaprylate

4.2

A lightweight, plant-derived emollient that hydrates and softens skin without feeling greasy, making it a great alternative to silicones or heavier oils.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isosorbide Disunflowerseedate

ISOSORBIDE DISUNFLOWERSEEDATE

4.0

A lightweight, plant-derived emollient that hydrates and smooths skin without clogging pores, ideal for sensitive and oily skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isosorbide Laurate

Isosorbide Laurate

4.0

A gentle, plant-derived emollient that hydrates and softens skin without clogging pores, ideal for sensitive and oily skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isosorbide Oleate

Isosorbide Oleate

4.0

Isosorbide Oleate is a gentle, plant-derived emollient that softens skin and helps other ingredients absorb better, with a low risk of irritation or clogged pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isosteareth-3 Ethylhexanoate

ISOSTEARETH-3 ETHYLHEXANOATE

4.0

A gentle synthetic emollient that helps products feel silky without clogging pores, suitable for most skin types.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearic Acid

Isostearic Acid

4.0

Isostearic acid is a gentle, non-greasy fatty acid that helps soften skin and stabilize formulas without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearic/Myristic Glycerides

ISOSTEARIC/MYRISTIC GLYCERIDES

4.0

A gentle, semi-synthetic emollient that softens and smooths skin without clogging pores, ideal for sensitive and dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Acetate

ISOSTEARYL ACETATE

3.8

Isostearyl Acetate is a lightweight emollient that helps skin feel soft and smooth, but it may clog pores in acne-prone individuals.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Alcohol

ISOSTEARYL ALCOHOL

4.0

A gentle fatty alcohol that softens skin and improves product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Avocadate

Isostearyl Avocadate

4.0

A gentle, plant-derived emollient that softens skin and helps restore the moisture barrier without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Behenate

Isostearyl Behenate

4.0

A gentle, non-greasy emollient that softens skin and improves product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Benzoate

Isostearyl Benzoate

4.0

Isostearyl Benzoate is a lightweight, non-greasy emollient that helps soften skin and improve product texture, with a low risk of irritation or clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Erucate

Isostearyl Erucate

3.8

Isostearyl Erucate is a gentle, non-greasy emollient that helps soften skin and improve product texture, with a low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Glyceryl Ether

ISOSTEARYL GLYCERYL ETHER

4.0

A gentle synthetic emollient that hydrates and smooths skin without clogging pores, suitable for most skin types.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Glycolate

Isostearyl Glycolate

4.0

A lightweight, non-greasy emollient that softens skin and improves product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Hydroxystearate

Isostearyl Hydroxystearate

4.0

A lightweight, non-greasy emollient that helps soften skin and improve product texture with a low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Isobutyrate

Isostearyl Isobutyrate

4.0

A lightweight, non-greasy emollient that helps soften skin and improve product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Isononanoate

ISOSTEARYL ISONONANOATE

4.0

A lightweight, non-greasy emollient that softens skin and improves product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Isostearate

Isostearyl Isostearate

4.0

A lightweight, non-greasy emollient that softens skin and improves product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Lactate

Isostearyl Lactate

4.0

A lightweight, non-greasy emollient that softens skin and improves product texture without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Laurate

Isostearyl Laurate

4.0

A lightweight, non-greasy emollient that softens skin without clogging pores, making it a good choice for oily or combination skin.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Linoleate

ISOSTEARYL LINOLEATE

4.0

A lightweight, non-greasy emollient that helps soften skin and improve product texture.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Myristate

Isostearyl Myristate

3.8

A reliable emollient that makes skin feel soft, but may clog pores for those prone to breakouts.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Neopentanoate

Isostearyl Neopentanoate

4.0

A lightweight synthetic emollient that gives skin a smooth, silky finish without clogging pores, making it a popular choice in non-greasy formulas.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Palmitate

Isostearyl Palmitate

4.0

A lightweight synthetic emollient that softens skin without heavy greasiness, but may clog pores for some people.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl PCA

Isostearyl PCA

4.0

A gentle, non-greasy emollient that helps soften and smooth skin while supporting the skin's natural moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isostearyl Sebacate

Isostearyl Sebacate

4.0

A gentle, non-greasy emollient that improves product texture and leaves skin feeling soft without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isotridecyl Acetate

Isotridecyl Acetate

3.8

A lightweight synthetic emollient that helps products spread smoothly without a greasy feel.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isotridecyl Alcohol

Isotridecyl Alcohol

3.5

A gentle synthetic alcohol that softens skin and helps dissolve other ingredients, but offers no active benefits on its own.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isotridecyl Laurate

Isotridecyl Laurate

4.0

A lightweight, non-greasy emollient that helps products glide on smoothly and leaves skin feeling soft without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Isotridecyl Salicylate

Isotridecyl Salicylate

4.0

A gentle, non-greasy emollient that helps soften skin and improve product texture without clogging pores.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Japanese Quince Seed Oil

CHAENOMELES JAPONICA SEED OIL

4.0

A gentle, plant-based oil that helps soften and condition skin without clogging pores, though research on its specific benefits is still limited.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Jasmine Flower Wax

JASMINUM SAMBAC FLOWER WAX

4.0

A gentle, naturally fragrant wax that softens skin and adds a light floral scent to products.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Job's Tears Seed Oil

Coix Lacryma-Jobi Ma-Yuen Seed Oil

4.0

A gentle, plant-based oil that hydrates and softens skin without clogging pores, with some antioxidant benefits.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Jojoba Alcohol

JOJOBA ALCOHOL

4.0

A gentle, plant-derived fatty alcohol that softens skin and improves product feel without the drying effects of short-chain alcohols.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Jojoba Butter

SIMMONDSIA CHINENSIS (JOJOBA) BUTTER

4.3

Jojoba Butter is a gentle, plant-based emollient that mimics skin's natural sebum, making it an excellent moisturizer for most skin types without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review