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 20,769
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

Skin conditioning agent

Rice Bran Ferment

SACCHAROMYCES/DEFATTED RICE BRAN FERMENT

4.0

A gentle, fermented ingredient that helps hydrate and condition skin, with some antioxidant benefits from the fermentation process.

Irritation

low

Source

biotech

beautyskincareconditioning agent
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Skin conditioning agent

Rice Bran Ferment Extract

AUREOBASIDIUM PULLULANS/RICE BRAN FERMENT

4.0

A gentle fermented rice bran extract that supports skin barrier function and provides antioxidant benefits, suitable for most skin types.

Irritation

low

Source

biotech

beautyskincareconditioning agent
Read ingredient review

Humectant

Rice Bran Ferment Filtrate

SACCHAROMYCES/RICE BRAN FERMENT FILTRATE EXTRACT

4.3

A gentle, fermented rice bran extract that hydrates and smooths skin with antioxidant benefits.

Irritation

low

Source

natural

beautyskincarehumectant
Read ingredient review

Emollient

Rice Bran Oil Esters

Rice Bran Oil/Hydrogenated Rice Bran Oil Esters

4.0

A gentle, plant-based emollient that helps soften and smooth skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Rice Bran Oil Extract

ORYZA SATIVA (RICE) BRAN OIL EXTRACT

4.2

A gentle, antioxidant-rich oil that hydrates and soothes skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Rice Bran Sterol

Oryza Sativa (Rice) Bran Sterol

4.3

A gentle, plant-based emollient that mimics skin's natural lipids to support a healthy moisture barrier.

Irritation

low

Source

natural

beautyskincareemollient
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Humectant

Rice Bran Water

Oryza Sativa (Rice) Bran Water

4.0

Rice bran water is a mild, antioxidant-rich hydrator that soothes and softens skin without clogging pores.

Irritation

low

Source

natural

beautyskincarehumectant
Read ingredient review

Emollient

Rice Bran Wax

Oryza Sativa (Rice) Bran Wax

4.0

Rice bran wax is a gentle, plant-based wax that adds texture and moisture to products without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Rice Bran Wax Ethyl Esters

Rice Bran Wax Ethyl Esters

4.0

A gentle, plant-based emollient that helps create a smooth, non-greasy feel in skincare and makeup, with a very low risk of irritation.

Irritation

low

Source

natural

beautyskincareemollient
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Surfactant

Rice Branamide DEA

Ricebranamide DEA

3.5

A semi-synthetic emulsifier from rice bran oil that helps create stable, creamy cleansers but may be mildly irritating for sensitive skin.

Irritation

moderate

Source

semi-synthetic

beautyskincaresurfactant
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Antioxidant

Rice Callus Culture Extract

Oryza Sativa (Rice) Callus Culture Extract

4.0

A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research is still emerging.

Irritation

low

Source

biotech

beautyskincareantioxidant
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Exfoliant

Rice Ferment (Acetobacter/Saccharomyces)

ACETOBACTER/SACCHAROMYCES/RICE KERNEL FERMENT

4.0

A gentle fermented rice ingredient that lightly exfoliates and hydrates, ideal for those seeking a mild alternative to stronger acids.

Irritation

low

Source

biotech

beautyskincareexfolianthumectant
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Humectant

Rice Ferment Extract

ASPERGILLUS/SACCHAROMYCES RICE FERMENT LEES

4.1

A gentle fermented rice ingredient that helps hydrate, brighten, and smooth skin without harsh exfoliation.

Irritation

low

Source

biotech

beautyskincarehumectantexfoliant
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Humectant

Rice Ferment Filtrate

SACCHAROMYCES/RICE KERNEL FERMENT

4.2

A gentle, fermented rice ingredient that hydrates, lightly exfoliates, and supports a smoother, more even-looking complexion.

Irritation

low

Source

biotech

beautyskincarehumectantconditioning agent
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Humectant

Rice Ferment Lees

Rice Ferment Lees

4.0

A gentle, nutrient-rich byproduct of sake brewing that hydrates, soothes, and supports a brighter, more even skin tone.

Irritation

low

Source

natural

beautyskincarehumectantantioxidant
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Emollient

Rice Ferment Lipids

SACCHAROMYCES/RICE FERMENT LIPIDS

4.2

A gentle, fermented lipid complex that helps reinforce the skin barrier and improve moisture retention without irritation.

Irritation

low

Source

biotech

beautyskincareemollient
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Antioxidant

Rice Germ Cell Culture Extract

Oryza Sativa (Rice) Germ Cell Culture Extract

4.0

A gentle, plant-based ingredient that may help protect skin from environmental stress and support a healthy moisture barrier.

Irritation

low

Source

biotech

beautyskincareantioxidant
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Antioxidant

Rice Germ Extract

ORYZA SATIVA GERM EXTRACT

4.0

Rice germ extract is a gentle, antioxidant-rich ingredient that helps protect and nourish the skin without irritation.

Irritation

low

Source

natural

beautyskincareantioxidant
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Emollient

Rice Germ Oil

ORYZA SATIVA GERM OIL

4.0

Rice germ oil is a lightweight, antioxidant-rich emollient that hydrates and protects skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Exfoliant

Rice Germ Powder

ORYZA SATIVA GERM POWDER

4.0

A gentle, natural exfoliant and antioxidant that helps smooth skin without harsh abrasion, ideal for sensitive skin types.

Irritation

low

Source

natural

beautyskincareexfoliant
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Exfoliant

Rice Hull Powder

ORYZA SATIVA HULL POWDER

4.0

A gentle, natural exfoliant that polishes skin without harsh microbeads, but may feel gritty for sensitive skin.

Irritation

low

Source

natural

beautyskincareexfoliant
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Exfoliant

Rice Hull Vinegar

Rice Hull Vinegar

3.8

A mild, natural exfoliant and pH balancer that may help smooth skin and refine texture without harshness.

Irritation

low

Source

natural

beautyskincareexfoliant
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Antioxidant

Rice Leaf Extract

Oryza Sativa Leaf Extract

4.0

A gentle, antioxidant-rich extract from rice leaves that helps protect skin from environmental stress and supports a calm, even-looking complexion.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Rice Leaf/Stem Extract

ORYZA SATIVA LEAF/STEM EXTRACT

3.8

A gentle, antioxidant-rich botanical extract that may help soothe and protect skin, but research is still early.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Rice Lees Extract

ORYZA SATIVA LEES EXTRACT

4.0

A gentle, fermented rice byproduct that may help soothe skin and provide antioxidant benefits, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Humectant

Rice Lees Ferment Lysate

Saccharomyces/Rice Lees Ferment Lysate

4.3

A gentle fermented ingredient that hydrates and supports skin barrier health without irritation.

Irritation

low

Source

biotech

beautyskincarehumectant
Read ingredient review

Humectant

Rice Lees Water

Oryza Sativa Lees Water

4.0

A gentle, nutrient-rich hydrator from sake fermentation that can help improve skin texture and radiance.

Irritation

low

Source

natural

beautyskincarehumectant
Read ingredient review

Emulsifier

Rice Oil Diglyceryl Esters

Rice Oil Diglyceryl Esters

4.3

A mild, rice-derived emulsifier that helps blend water and oil in formulas while leaving skin feeling soft.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Emulsifier

Rice Oil Glycereth-8 Esters

Rice Oil Glycereth-8 Esters

4.0

A mild, rice-derived emulsifier that helps blend oil and water in formulas while leaving skin feeling soft.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Soothing Agent

Rice Paper Plant Extract

Tetrapanax Papyrifer Extract

3.8

A gentle plant extract with promising soothing and antioxidant benefits, though research is still early.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Humectant

Rice Polypeptide-1

SR-RICE POLYPEPTIDE-1

4.0

A gentle, plant-derived peptide that helps hydrate and support skin barrier function, suitable for most skin types.

Irritation

low

Source

natural

beautyskincarehumectant
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Absorbent

Rice Powder

Oryza Sativa Powder

4.0

Rice powder is a gentle, natural absorbent that helps control oil and gives a silky feel, but it offers minimal active skincare benefits.

Irritation

low

Source

natural

beautyskincareabsorbent
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Anti-aging agent

Rice RH-Oligopeptide-2

Rice RH-Oligopeptide-2

3.8

A gentle, bioengineered peptide that may support collagen and firmness, but research is still early.

Irritation

low

Source

biotech

beautyskincareanti-aging
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Humectant

Rice Rh-Polypeptide-45

Rice Rh-Polypeptide-45

4.0

A gentle, biotech-derived peptide from rice that helps hydrate and condition skin, but research on its specific benefits is still limited.

Irritation

low

Source

biotech

beautyskincarehumectant
Read ingredient review

Anti-Aging Agent

Rice SH-Oligopeptide-1

Rice SH-Oligopeptide-1

4.0

A gentle, rice-derived peptide that may help improve skin firmness and reduce fine lines with regular use.

Irritation

low

Source

biotech

beautyskincarepeptide
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Anti-aging agent

Rice SH-Oligopeptide-2

Rice SH-Oligopeptide-2

3.8

A gentle, bioengineered peptide that may help support skin firmness, but research is still emerging.

Irritation

low

Source

biotech

beautyskincarepeptide
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Anti-aging agent

Rice SH-Polypeptide-1

Rice SH-Polypeptide-1

4.0

A gentle rice-derived peptide that may help improve skin firmness and reduce fine lines, though human studies are still limited.

Irritation

low

Source

biotech

beautyskincarepeptide
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Anti-aging

Rice SH-Polypeptide-3

Rice SH-Polypeptide-3

4.0

A gentle rice-derived peptide that may help improve skin firmness and hydration with low irritation risk.

Irritation

low

Source

natural

beautyskincarepeptide
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Anti-Aging Agent

Rice SH-Polypeptide-9

Rice SH-Polypeptide-9

4.0

A gentle peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness over time.

Irritation

low

Source

semi-synthetic

beautyskincareanti-aging
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Skin Conditioning Agent

Rice Sprout Ferment Filtrate

SACCHAROMYCES/RICE SPROUT FERMENT FILTRATE

4.0

A gentle fermented ingredient that may help soothe and brighten skin while supporting its natural barrier.

Irritation

low

Source

biotech

beautyskincareantioxidant
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Antioxidant

Rice Triterpenoids

Rice Bran/Germ Triterpenoids

4.0

A gentle, antioxidant-rich ingredient from rice that helps calm skin and support its natural barrier.

Irritation

low

Source

natural

beautyskincareantioxidant
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Foam Booster

Ricinolamide MIPA

RICINOLEAMIDE MIPA

3.5

A mild foam booster and thickener that helps create a rich lather in cleansers, generally well-tolerated but not a primary active ingredient.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
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Surfactant

Ricinolamidopropyl Betaine

RICINOLEAMIDOPROPYL BETAINE

4.0

A gentle, castor oil-derived surfactant that cleanses effectively with low irritation potential, ideal for sensitive skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleansing
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Conditioning Agent

Ricinolamidopropyl Dimethylamine

RICINOLEAMIDOPROPYL DIMETHYLAMINE

4.0

A gentle, castor-oil-derived conditioning agent that softens hair and skin without heavy buildup.

Irritation

low

Source

semi-synthetic

beautyskincarehaircareconditioning agent
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Antistatic Agent

Ricinolamidopropyl Dimethylamine Lactate

RICINOLEAMIDOPROPYL DIMETHYLAMINE LACTATE

4.0

A gentle, castor-oil-derived conditioning ingredient that smooths hair without heavy buildup, ideal for fine or oily hair types.

Irritation

low

Source

semi-synthetic

beautyhaircareconditioning agent
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Film Former

Ricinolate Adipate Copolymer

RICINOLEIC ACID/ADIPIC ACID/AEEA COPOLYMER

3.8

A safe, effective film-former that helps makeup and hair products last longer without feeling stiff or heavy.

Irritation

low

Source

synthetic

beautyskincarehaircare
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Foam Booster

Ricinoleamide DEA

RICINOLEAMIDE DEA

3.5

An effective foam booster and thickener, but may cause irritation for sensitive skin and has raised environmental concerns.

Irritation

moderate

Source

semi-synthetic

beautyskincaresurfactant
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Surfactant

Ricinoleamide MEA

Ricinoleamide MEA

3.8

A mild surfactant derived from castor oil that helps create rich lather and thicken cleansers without stripping the skin.

Irritation

low

Source

semi-synthetic

beautyskincaresurfactant
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Emollient

Ricinoleic Acid

RICINOLEIC ACID

4.0

A gentle, plant-derived fatty acid that hydrates and soothes skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Film Former

Ricinoleoyl Epoxy Resin

RICINOLEOYL EPOXY RESIN

3.5

A castor-oil-derived resin that helps makeup and sunscreen stay put longer without feeling heavy.

Irritation

low

Source

semi-synthetic

beautyskincarefilm-former
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Surfactant

Ricinoleth-40

RICINOLETH-40

3.8

Ricinoleth-40 is a gentle emulsifier that helps blend oil and water, but may cause irritation in sensitive skin at high concentrations.

Irritation

moderate

Source

semi-synthetic

beautyskincaresurfactant
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Antistatic Agent

Ricinus-Based Conditioning Agent

RICINOLEAMIDOPROPYLTRIMONIUM METHOSULFATE

4.0

A gentle, castor-oil-derived conditioning ingredient that helps detangle and soften hair without heavy buildup.

Irritation

low

Source

semi-synthetic

beautyskincarehaircare
Read ingredient review

Humectant

Rissoella Extract

Rissoella Verruculosa Extract

3.8

A gentle, hydrating algae extract that may help calm skin, but research is still early.

Irritation

low

Source

natural

beautyskincaresoothing agent
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Soothing agent

River Bulrush Root Extract

Scirpus Fluviatilis Rhizome Extract

3.8

A gentle plant extract with potential soothing and antioxidant benefits, but research is still emerging.

Irritation

low

Source

natural

beautyskincarebotanical extract
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3.8

RNA is a gentle, hydrating ingredient that may support skin cell turnover, but its benefits in skincare are still being studied.

Irritation

low

Source

natural

beautyskincarehumectant
Read ingredient review