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

Conditioning Agent

Sunfloweramidopropyl Dimethylamine

SUNFLOWERSEEDAMIDOPROPYL DIMETHYLAMINE

4.0

A gentle, plant-derived conditioning ingredient that helps soften and detangle hair with low irritation potential.

Irritation

low

Source

semi-synthetic

beautyhaircareconditioning agent
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Conditioning Agent

Sunfloweramidopropyl Dimethylamine Lactate

SUNFLOWERSEEDAMIDOPROPYL DIMETHYLAMINE LACTATE

4.0

A gentle, plant-derived conditioning ingredient that softens hair and reduces static, ideal for those seeking a lighter alternative to silicones.

Irritation

low

Source

semi-synthetic

beautyhaircareconditioning agent
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Conditioning Agent

Sunfloweramidopropyl Ethyldimonium Ethosulfate

SUNFLOWERSEEDAMIDOPROPYL ETHYLDIMONIUM ETHOSULFATE

4.0

A mild, sunflower-derived conditioning ingredient that smooths hair and reduces static, suitable for most hair types including sensitive scalps.

Irritation

low

Source

semi-synthetic

beautyhaircareconditioning agent
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Abrasive

Sunstone Powder

Sunstone Powder

3.5

Sunstone powder adds a natural sparkle and gentle physical exfoliation, but its sharp edges can be irritating for sensitive skin.

Irritation

moderate

Source

natural

beautyskincareexfoliant
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Antioxidant

Superoxide Dismutase

Superoxide Dismutase

4.0

Superoxide Dismutase is a powerful antioxidant enzyme that helps defend skin against oxidative stress and may support a more even, youthful-looking complexion.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Surfgrass Extract

Phyllospadix scouleri extract

3.8

Surfgrass extract is a gentle marine antioxidant that may help calm skin and defend against environmental stress, but research is still early.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Sutherlandia Leaf Extract

Sutherlandia Frutescens Leaf Extract

3.8

Sutherlandia leaf extract is a gentle, antioxidant-rich botanical that may help calm skin and protect against environmental stress, though human studies are limited.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Antioxidant

Swallowwort Extract

Vincetoxicum atratum extract

3.8

A gentle botanical extract with antioxidant potential, but research is limited and mostly traditional.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Antioxidant

Swallowwort Root Extract

VINCETOXICUM HIRUNDINARIA ROOT EXTRACT

3.5

A gentle botanical root extract with antioxidant potential, but limited human research to support specific skincare benefits.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Soothing agent

Swallowwort Root Powder

Vincetoxicum Atratum Root Powder

3.5

A traditional botanical root powder with potential soothing and antioxidant benefits, but clinical evidence in cosmetics is limited.

Irritation

low

Source

natural

beautyskincarebotanical
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Hair Conditioning Agent

Sweet Almond Amino Acids

Prunus Amygdalus Dulcis (Sweet Almond) Amino Acids

4.0

A mild, plant-based amino acid that helps strengthen hair and hydrate skin without irritation.

Irritation

low

Source

natural

beautyskincarehaircare
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Antioxidant

Sweet Almond Bark Extract

PRUNUS AMYGDALUS DULCIS (SWEET ALMOND) BARK EXTRACT

3.8

A gentle, antioxidant-rich plant extract that may help protect skin from environmental stress, though research is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
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Exfoliant

Sweet Almond Bark Powder

Prunus Amygdalus Dulcis (Sweet Almond) Bark Powder

3.8

A gentle, natural physical exfoliant that helps smooth skin texture, but may be too abrasive for sensitive or compromised skin.

Irritation

moderate

Source

natural

beautyskincareexfoliant
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Soothing Agent

Sweet Almond Bud Extract

Prunus Amygdalus Dulcis (Sweet Almond) Bud Extract

4.0

A gentle, antioxidant-rich extract from sweet almond buds that may help calm and protect the skin, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
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Soothing Agent

Sweet Almond Flower Extract

Prunus Amygdalus Dulcis Flower Extract

4.0

A gentle, antioxidant-rich botanical extract that may help calm skin and protect against environmental stress, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Sweet Almond Fruit Extract

PRUNUS AMYGDALUS DULCIS (SWEET ALMOND) FRUIT EXTRACT

4.0

A gentle, antioxidant-packed extract from almond fruit that helps protect skin from environmental stress without clogging pores.

Irritation

low

Source

natural

beautyskincareantioxidant
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Humectant

Sweet Almond Fruit Water

Prunus Amygdalus Dulcis Fruit Water

4.0

A gentle, hydrating water alternative from almonds that soothes skin without the oiliness of almond oil.

Irritation

low

Source

natural

beautyskincarehumectant
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Antioxidant

Sweet Almond Leaf Cell Extract

Prunus Amygdalus Dulcis (Sweet Almond) Leaf Cell Extract

3.8

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

Irritation

low

Source

biotech

beautyskincareantioxidant
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Emollient

Sweet Almond Oil

Prunus Amygdalus Dulcis (Sweet Almond) Oil

4.5

A gentle, nourishing oil that softens skin without clogging pores, making it a staple for dry or sensitive skin types.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Sweet Almond Oil Decyl Esters

Sweet Almond Oil Decyl Esters

4.0

A lightweight, non-greasy emollient derived from sweet almond oil that softens skin without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emulsifier

Sweet Almond Oil PEG-8 Esters

SWEET ALMOND OIL PEG-8 ESTERS

4.0

A gentle, semi-synthetic emulsifier that helps blend oil and water in creams and lotions while providing light skin conditioning.

Irritation

low

Source

semi-synthetic

beautyskincareemulsifier
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Emollient

Sweet Almond Oil Unsaponifiables

Prunus Amygdalus Dulcis Oil Unsaponifiables

4.0

A gentle, non-greasy emollient derived from sweet almond oil that helps soften and soothe skin without clogging pores.

Irritation

low

Source

natural

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Emollient

Sweet Almond Oleosomes

Prunus Amygdalus Dulcis Oleosomes

4.3

A gentle, lipid-rich ingredient that hydrates and softens skin without the greasy feel of traditional oils.

Irritation

low

Source

natural

beautyskincareemollient
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Humectant

Sweet Almond Protein

PRUNUS AMYGDALUS DULCIS PROTEIN

4.0

A gentle, plant-based protein that helps hair and skin feel soft and hydrated without heavy residue.

Irritation

low

Source

natural

beautyskincarehumectantfilm-former
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Exfoliant

Sweet Almond Seed

Prunus Amygdalus Dulcis (Sweet Almond) Seed

4.0

Sweet Almond Seed provides gentle physical exfoliation and a touch of nourishment, but its texture can vary and it may not suit very sensitive skin.

Irritation

low

Source

natural

beautyskincareexfoliant
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Soothing Agent

Sweet Almond Seed Extract

Prunus Amygdalus Dulcis Seed Extract

4.0

A gentle, antioxidant-rich extract that helps soothe and moisturize skin, but its benefits are best supported by traditional use rather than extensive clinical studies.

Irritation

low

Source

natural

beautyskincaresoothing agent
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Exfoliant

Sweet Almond Seed Meal

Prunus Amygdalus Dulcis Seed Meal

4.0

A gentle, natural exfoliant that buffs away dead skin cells without harsh microbeads, but may feel gritty for sensitive skin.

Irritation

low

Source

natural

beautyskincareexfoliant
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Antioxidant

Sweet Almond Seedcake Extract

PRUNUS AMYGDALUS DULCIS (SWEET ALMOND) SEEDCAKE EXTRACT

4.0

A gentle, antioxidant-rich extract from almond processing byproducts that helps soothe and condition the skin.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Sweet Almond Seedcoat Extract

Prunus Amygdalus Dulcis Seedcoat Extract

4.0

A gentle, antioxidant-rich extract that helps protect skin from environmental stress while offering mild soothing benefits.

Irritation

low

Source

natural

beautyskincareantioxidant
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Exfoliant

Sweet Almond Shell Extract

Prunus Amygdalus Dulcis (Sweet Almond) Shell Extract

3.8

A gentle, natural physical exfoliant that helps smooth skin without harsh chemicals, but may feel too gritty for sensitive skin.

Irritation

low

Source

natural

beautyskincareexfoliant
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Exfoliant

Sweet Almond Shell Powder

Prunus Amygdalus Dulcis Shell Powder

3.8

A gentle, natural physical exfoliant that sloughs off dead skin cells without harsh chemicals.

Irritation

low

Source

natural

beautyskincareexfoliant
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Antioxidant

Sweet Briar Extract

Rosa Eglantaria Flower/Leaf/Stem Extract

4.0

A gentle, antioxidant-rich plant extract that may help calm skin and defend against environmental stress, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
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Emollient

Sweet Briar Seed Oil

Rosa Rubiginosa Seed Oil

4.5

A lightweight, non-greasy oil rich in linoleic acid and vitamin C that helps support skin barrier function and may improve the appearance of uneven texture.

Irritation

low

Source

natural

beautyskincareemollient
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Soothing Agent

Sweet Cicely Extract

Myrrhis Odorata Extract

3.8

A gentle botanical extract with antioxidant and soothing potential, though research on its cosmetic benefits is still emerging.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Soothing Agent

Sweet Clover Extract

Melilotus Officinalis Herb Extract

3.8

A gentle botanical extract with soothing potential, but limited clinical evidence for specific skincare benefits.

Irritation

low

Source

natural

beautyskincaresoothing agent
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Soothing Agent

Sweet Clover Flower Extract

Melilotus Officinalis Flower Extract

3.8

A gentle botanical extract that may help calm redness and support microcirculation, but research is still early.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Sweet Clover Flower Water

MELILOTUS OFFICINALIS FLOWER WATER

3.8

A mild, floral water that may help soothe and lightly tone the skin, but scientific evidence for its benefits is limited.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Sweet Clover Leaf Extract

Melilotus Officinalis Leaf Extract

3.8

A gentle botanical extract with antioxidant and soothing potential, but research on its cosmetic benefits is still limited.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Soothing Agent

Sweet Fennel Fruit Extract

FOENICULUM VULGARE DULCE FRUIT EXTRACT

4.0

A gentle botanical extract that may help calm skin and provide antioxidant support, but research is mostly lab-based.

Irritation

low

Source

natural

beautyskincaresoothing agent
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Fragrance

Sweet Fennel Fruit Oil

FOENICULUM VULGARE DULCE FRUIT OIL

4.0

Sweet Fennel Fruit Oil adds a pleasant scent and antioxidant benefits, but can be irritating for sensitive skin if used undiluted.

Irritation

moderate

Source

natural

beautyskincareessential oil
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Antioxidant

Sweet Flag Callus Extract

Acorus Calamus Callus Culture Extract

3.8

A lab-grown plant extract that may help calm skin and fight free radicals, but research is still early.

Irritation

low

Source

biotech

beautyskincareantioxidant
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Soothing Agent

Sweet Flag Root Extract

Acorus Gramineus Root/Stem Extract

3.8

A gentle botanical extract with antioxidant and soothing potential, but research is still early and mostly lab-based.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Antioxidant

Sweet Gale Extract

MYRICA GALE FLOWER/FRUIT/LEAF/TWIG EXTRACT

3.8

A gentle botanical extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.

Irritation

low

Source

natural

beautyskincareantioxidant
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Soothing Agent

Sweet Goldenrod Extract

Solidago Odora Extract

3.8

A gentle botanical extract with antioxidant and soothing potential, though research is limited compared to more established plant extracts.

Irritation

low

Source

natural

beautyskincarebotanical extract
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Soothing Agent

Sweet Grass Extract

HIEROCHLOE ODORATA EXTRACT

3.8

A gentle, aromatic plant extract with antioxidant and soothing potential, but research on its skincare benefits is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Sweet Orange Callus Extract

CITRUS AURANTIUM DULCIS CALLUS CULTURE EXTRACT

4.0

A gentle, lab-grown plant extract that may help protect skin from environmental stress, though human studies are limited.

Irritation

low

Source

biotech

beautyskincareantioxidant
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Fragrance

Sweet Orange Flower Extract

CITRUS AURANTIUM DULCIS FLOWER

3.8

A gentle, aromatic flower extract that adds a light citrus scent and mild soothing benefits to skincare formulas.

Irritation

low

Source

natural

beautyskincarefragrance
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Fragrance

Sweet Orange Flower Oil

CITRUS AURANTIUM DULCIS FLOWER OIL

3.8

A fragrant, gentle essential oil that adds a pleasant scent and mild soothing benefits, but can irritate sensitive skin if used undiluted.

Irritation

moderate

Source

natural

beautyskincarefragrance
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Emollient

Sweet Orange Flower Wax

CITRUS AURANTIUM DULCIS FLOWER WAX

4.0

A gentle, natural wax that adds a silky feel and light floral scent to skincare products, but may cause sensitivity in those allergic to citrus.

Irritation

low

Source

natural

beautyskincareemollient
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Exfoliant

Sweet Orange Flower-Leaf-Stem Powder

Citrus Aurantium Dulcis Flower/Leaf/Stem Powder

3.5

A gentle, natural powdered exfoliant from orange tree parts that adds mild texture and a light citrus scent to skincare products.

Irritation

low

Source

natural

beautyskincareexfoliant
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Antioxidant

Sweet Orange Fruit Extract

CITRUS AURANTIUM DULCIS FRUIT EXTRACT

4.0

A gentle, antioxidant-rich fruit extract that can brighten skin and provide a light citrus scent, but may cause sensitivity in very rare cases.

Irritation

low

Source

natural

beautyskincareantioxidant
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Antioxidant

Sweet Orange Leaf Extract

CITRUS AURANTIUM DULCIS LEAF EXTRACT

3.8

A gentle plant extract that provides antioxidant protection and a subtle tightening feel, but research on its specific skin benefits is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
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