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

Emollient

Barley Wax

HORDEUM VULGARE CERA

4.0

Barley Wax is a gentle, plant-derived wax that helps lock in moisture and gives products a smooth, creamy feel without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Fragrance

Barosma Betulina Leaf Oil

BAROSMA BETULINA LEAF OIL

3.5

An aromatic essential oil with limited skincare research; best used for its scent rather than proven skin benefits.

Irritation

moderate

Source

natural

beautyskincarefragrance
Read ingredient review

Soothing Agent

Barosma Betulina Root Extract

Barosma Betulina Root Extract

3.5

A gentle botanical root extract with antioxidant potential, but research on its skincare benefits is still limited.

Irritation

low

Source

natural

beautyskincarebotanical extract
Read ingredient review

Colorant

Basic Blue 124

Basic Blue 124

3.0

Basic Blue 124 is a synthetic blue dye that adds color to products but offers no skincare benefits; it is generally considered safe in low concentrations for most people.

Irritation

low

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Blue 75

Basic Blue 75

2.5

Basic Blue 75 is a synthetic blue dye used for color in hair products, but it may cause irritation for sensitive scalps.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Blue 99

Basic Blue 99

2.5

Basic Blue 99 is a synthetic dye that adds blue color to cosmetics, but it may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Brown 16

BASIC BROWN 16

3.0

Basic Brown 16 is a synthetic colorant that can provide a rich brown hue, but it may cause skin irritation in sensitive individuals and is primarily used in rinse-off products.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Hair colorant

Basic Brown 17

Basic Brown 17

3.5

Basic Brown 17 is a synthetic dye that adds brown tones to hair color, but it may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyhair colorsynthetic dye
Read ingredient review

Colorant

Basic Orange 31

Basic Orange 31

2.5

Basic Orange 31 is a synthetic hair dye colorant that can provide vibrant orange tones but may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Orange 69

Basic Orange 69

2.5

Basic Orange 69 is a synthetic hair dye that delivers vibrant orange tones but may cause irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyhair colorsynthetic dye
Read ingredient review

Colorant

Basic Red 1

Basic Red 1

2.5

Basic Red 1 is a vivid synthetic dye used in some cosmetics, but it has a history of safety concerns and is restricted in several regions due to potential irritation and contamination risks.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Red 51

Basic Red 51

3.5

A synthetic red dye that adds color but may cause irritation for sensitive scalps in hair dyes.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Red 76

Basic Red 76

3.0

Basic Red 76 is a synthetic colorant that can add vibrant red tones to cosmetics, but it may cause irritation for sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Violet 11

Basic Violet 11

3.5

A synthetic violet dye that adds color to cosmetics but may cause irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Violet 2

Basic Violet 2

3.5

Basic Violet 2 is a synthetic dye that adds color to cosmetics, but it may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Yellow 40

Basic Yellow 40

2.5

Basic Yellow 40 is a synthetic yellow dye used mainly in hair color and rinse-off products, but it may cause skin irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Yellow 57

Basic Yellow 57

3.0

Basic Yellow 57 is a synthetic yellow dye used mainly in rinse-off products; it is generally safe at low levels but may cause irritation for sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Colorant

Basic Yellow 87

Basic Yellow 87

3.0

Basic Yellow 87 is a synthetic yellow dye used mainly in rinse-off products; it is generally considered safe at low concentrations but may cause irritation in sensitive individuals.

Irritation

moderate

Source

synthetic

beautyskincarecolorant
Read ingredient review

Antioxidant

Basil Extract

Ocimum Basilicum Flower/Leaf/Stem Extract

4.0

Basil extract offers antioxidant and soothing benefits, but its effects are mild and best used as part of a broader formula.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Hairy Root Extract

Ocimum Basilicum Hairy Root Culture Extract

4.0

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

Irritation

low

Source

biotech

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Leaf and Flower Extract

OCIMUM BASILICUM FLOWER/LEAF EXTRACT

3.8

Basil extract is a gentle antioxidant that may help calm skin and fight free radical damage, but research on topical use is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Leaf Extract

Ocimum Basilicum Herb Extract

3.8

Basil leaf extract brings antioxidant and soothing benefits to skincare, but research on its topical effects is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Leaf Powder

Ocimum Basilicum Leaf Powder

3.5

Basil leaf powder brings antioxidant and soothing potential to skincare, but research on its topical benefits is still limited.

Irritation

low

Source

natural

beautyskincarebotanical
Read ingredient review

Soothing Agent

Basil Leaf Water

Ocimum Basilicum Leaf Water

3.8

Basil leaf water is a mild, aromatic botanical water that can add a subtle soothing feel and light herbal scent to skincare, but its benefits are largely from its water content and minor antioxidant traces.

Irritation

low

Source

natural

beautyskincarebotanical water
Read ingredient review

Antioxidant

Basil Meristem Cell Culture

OCIMUM BASILICUM MERISTEM CELL CULTURE

4.0

A gentle, lab-grown plant stem cell ingredient that may help protect skin from environmental stress and support a more youthful appearance.

Irritation

low

Source

biotech

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Meristem Cell Extract

Ocimum Basilicum Meristem Cell Culture Extract

4.0

A gentle, plant-derived antioxidant that may help protect skin from environmental stress and support a more even tone.

Irritation

low

Source

biotech

beautyskincareantioxidant
Read ingredient review

Antioxidant

Basil Root Extract

Ocimum Basilicum Root Extract

3.8

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

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Emollient

Bassia Butter

BASSIA BUTYRACEA SEED BUTTER

4.0

A gentle, plant-based butter that helps lock in moisture and soften skin without feeling overly greasy.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Batyl Alcohol

Batyl Alcohol

4.0

Batyl alcohol is a gentle emollient that softens skin and improves product texture, with a low risk of irritation or clogged pores.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Emollient

Batyl Isostearate

Batyl Isostearate

4.0

A gentle, synthetic emollient that helps soften skin and improve product texture without common irritation concerns.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Emollient

Batyl Stearate

Batyl Stearate

3.8

Batyl Stearate is a gentle emollient that helps soften and smooth skin, but it's less common and less researched than traditional moisturizing ingredients.

Irritation

low

Source

synthetic

beautyskincareemollient
Read ingredient review

Antioxidant

Bauhinia Aureifolia Leaf Extract

BAUHINIA AUREIFOLIA LEAF EXTRACT

3.8

A gentle botanical extract with antioxidant potential, but research on its specific benefits for skin is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Bay Laurel Fruit Extract

Laurus Nobilis Fruit Extract

3.8

A gentle, plant-based antioxidant that may help calm skin and fight free radical damage, though research on its topical benefits is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Emollient

Bay Laurel Fruit Oil

Laurus Nobilis Fruit Oil

4.0

A gentle, antioxidant-rich oil that helps soften and soothe the skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Fragrance

Bay Leaf & Berry Oil

Pimenta racemosa leaf/fruit oil

3.8

A fragrant botanical oil with antimicrobial potential, but its strong aroma and moderate irritation risk mean it's best used in low concentrations.

Irritation

moderate

Source

natural

beautyskincarefragrance
Read ingredient review

Antioxidant

Bay Leaf Extract

Laurus Nobilis Leaf/Stem Extract

3.8

A gentle botanical extract with antioxidant benefits, but its fragrance potential may be a concern for sensitive skin.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Soothing Agent

Bay Leaf Water

Laurus Nobilis Leaf/Stem Water

3.8

A gentle, aromatic botanical water that may offer mild soothing and antioxidant benefits, but lacks strong clinical evidence for specific skincare claims.

Irritation

low

Source

natural

beautyskincarebotanical extract
Read ingredient review

Antioxidant

Bay Passionfruit Extract

Passiflora Laurifolia Fruit Extract

4.0

A gentle, antioxidant-rich fruit extract that helps protect skin from environmental stress while providing light hydration.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Astringent

Bayberry Bark Extract

Myrica Cerifera Bark Extract

3.8

A gentle botanical extract with astringent and soothing potential, but human studies are limited.

Irritation

low

Source

natural

beautyskincarebotanical extract
Read ingredient review

Antioxidant

Bayberry Fruit Extract

Myrica Cerifera Fruit Extract

3.8

A gentle botanical extract that may help calm skin and fight free radicals, though research on its topical benefits is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Emollient

Bayberry Fruit Wax

Myrica Cerifera Fruit Wax

4.0

A natural plant wax that gives lip balms and solid creams a smooth, firm texture without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Antioxidant

Bayberry Fruit/Bark Extract

MYRICA CERIFERA FRUIT/BARK EXTRACT

3.8

A gentle, plant-based antioxidant extract that may help calm skin and fight free radicals, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Bayberry Leaf Extract

Pimenta Racemosa Fruit Leaf Extract

3.8

A gentle botanical extract with antioxidant potential, but research on its specific benefits in skincare is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beach Morning Glory Extract

Ipomoea pes-caprae flower/leaf/stem extract

3.8

A gentle, antioxidant-rich plant extract with traditional use for soothing skin, though modern research is still limited.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beaked Hazel Leaf Extract

CORYLUS ROSTRATA LEAF EXTRACT

3.8

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

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beaked Hazel Twig Extract

Corylus Rostrata Twig Extract

3.8

A gentle botanical extract with antioxidant potential, but research is still early — it's a nice-to-have rather than a must-have ingredient.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beaked Hazelnut Seed Extract

Corylus Rostrata Seed Extract

3.8

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

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Emollient

Bean Palmitate

Bean Palmitate

3.8

Bean Palmitate is a gentle, plant-derived emollient that softens skin and improves product feel, with low irritation and comedogenic risk.

Irritation

low

Source

natural

beautyskincareemollient
Read ingredient review

Soothing Agent

Bean Phytoplacenta Ferment

Phaseolus Vulgaris Phytoplacenta Conditioned Media

3.8

A gentle, plant-based ferment that may help calm irritation and support skin barrier function, but research is still early.

Irritation

low

Source

biotech

beautyskincaresoothing agent
Read ingredient review

Antioxidant

Bean Sprout Extract

Phaseolus Vulgaris Sprout Extract

4.0

A gentle, antioxidant-rich plant extract that may help soothe and protect the skin, though research is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Bearberry Leaf Powder

Arctostaphylos Uva Ursi Leaf Powder

3.8

A gentle botanical powder that may help calm skin and fight free radicals, but research on its cosmetic benefits is still limited.

Irritation

low

Source

natural

beautyskincarebotanical
Read ingredient review

Antioxidant

Bee Balm Flower Extract

Monarda Didyma Flower Extract

3.8

A gentle, plant-based extract that may help calm skin and fight free radical damage, though research is still early.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Bee Pollen Extract

POLLEN

3.5

Bee pollen may offer antioxidant benefits, but it can also cause allergic reactions in some people.

Irritation

moderate

Source

natural

beautyskincareantioxidant
Read ingredient review

Firming Agent

Bee Venom

Apis Mellifera Venom

3.5

Bee venom may offer temporary plumping effects, but it carries a high risk of irritation and allergic reactions, making it a risky choice for sensitive skin.

Irritation

high

Source

natural

beautyskincareactive
Read ingredient review

Antioxidant

Beech Bark Extract

Fagus Sylvatica Bark Extract

3.8

Beech bark extract is a gentle antioxidant-rich ingredient that may help soothe and protect skin, though research on its cosmetic benefits is still emerging.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beech Bud Extract

Fagus Sylvatica Bud Extract

3.8

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

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review

Antioxidant

Beech Flower Extract

Fagus Sylvatica Flower Extract

3.8

A gentle, plant-based antioxidant that may help calm and protect skin, though research is still early.

Irritation

low

Source

natural

beautyskincareantioxidant
Read ingredient review