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

Glycol Ester Blend

Glycol Dipalmate/Palm Kernelate/Olivate/Macadamiate

3.8

A gentle emollient blend that softens skin but may be slightly pore-clogging for acne-prone types.

Irritation

low

Source

semi-synthetic

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Emollient

Glycol Montanate

Glycol Montanate

3.8

A gentle wax ester that helps thicken and stabilize products while providing a smooth, non-greasy feel.

Irritation

low

Source

natural

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Emollient

Glycol Palmitate

Glycol Palmitate

3.8

Glycol Palmitate is a gentle emollient that helps soften and smooth the skin, but it offers no active benefits beyond basic moisturizing.

Irritation

low

Source

synthetic

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Emollient

Glycolamide Stearate

Glycolamide Stearate

3.8

Glycolamide Stearate is a gentle emollient that helps moisturize and condition skin without clogging pores, making it suitable for most skin types.

Irritation

low

Source

semi-synthetic

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Emollient

Glycolipids

Glycolipids

4.3

Glycolipids are gentle, multi-tasking molecules that help hydrate and reinforce the skin barrier, making them a smart choice for sensitive or dry skin.

Irritation

low

Source

natural

beautyskincareemollienthumectant
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Emollient

Goat Butter

Capra Hircus Milk Butter

3.8

Goat butter is a natural emollient that softens skin, but its high fat content may clog pores for some people.

Irritation

low

Source

natural

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Emollient

Goat Fat

Caprae Fat

3.8

Goat fat is a rich, natural emollient that deeply moisturizes but may clog pores for some skin types.

Irritation

low

Source

natural

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Emollient

Goat Milk

CAPRAE LAC

4.0

Goat milk is a gentle, nourishing ingredient that moisturizes and mildly exfoliates, making it a popular choice for sensitive and dry skin types.

Irritation

low

Source

natural

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Emollient

Goji Berry Seed Oil

LYCIUM BARBARUM SEED OIL

4.0

A lightweight, antioxidant-rich oil that hydrates and helps protect skin from environmental stress.

Irritation

low

Source

natural

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Emollient

Gondoic Acid

GONDOIC ACID

4.0

Gondoic acid is a gentle, plant-derived fatty acid that helps soften and smooth skin while supporting the skin barrier.

Irritation

low

Source

natural

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Emollient

Grandidier's Baobab Seed Oil

Adansonia Grandidieri Seed Oil

4.0

A lightweight, non-greasy oil rich in essential fatty acids and antioxidants that helps soften and protect the skin barrier.

Irritation

low

Source

natural

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Emollient

Grape Ferment Oil

VITIS VINIFERA FRUIT JUICE FERMENT LEES OIL

4.0

A gentle, antioxidant-rich oil from fermented grapes that hydrates and protects skin without clogging pores.

Irritation

low

Source

natural

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Emollient

Grape Leaf Oil

Vitis Vinifera Leaf Oil

4.0

Grape Leaf Oil is a gentle, antioxidant-rich oil that helps moisturize and protect the skin, but research on its specific benefits is still emerging.

Irritation

low

Source

natural

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Emollient

Grape Leaf Wax

Vitis Vinifera Leaf Wax

4.0

A gentle, plant-based wax that adds richness and stability to skincare and makeup without common irritants.

Irritation

low

Source

natural

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Emollient

Grape Seed Oil Glycereth-8 Esters

Grape Seed Oil Glycereth-8 Esters

4.0

A gentle, semi-synthetic emollient that combines the nourishing properties of grape seed oil with improved water compatibility for lighter, non-greasy formulations.

Irritation

low

Source

semi-synthetic

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Emollient

Grape Seed Oil PEG-8 Esters

Grape Seed Oil PEG-8 Esters

4.0

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

Irritation

low

Source

semi-synthetic

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Emollient

Grapefruit Seed Unsaponifiables

Citrus Grandis Seed Oil Unsaponifiables

4.0

A gentle, antioxidant-rich fraction of grapefruit seed oil that helps soothe and support the skin barrier without clogging pores.

Irritation

low

Source

natural

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Emollient

Gromwell Seed Oil

Lithospermum Officinale Seed Oil

4.0

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

Irritation

low

Source

natural

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Emollient

Guava Seed Oil

PSIDIUM GUAJAVA SEED OIL

4.0

A gentle, non-greasy oil that hydrates and protects skin with essential fatty acids and antioxidants.

Irritation

low

Source

natural

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Emollient

Gurjun Balsam Oil

Dipterocarpus Turbinatus Wood Oil

3.8

Gurjun Balsam Oil is a gentle, natural emollient that helps soften and soothe skin, but it has moderate comedogenic potential and limited research.

Irritation

low

Source

natural

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Emollient

Hazelnut Ethyl Ester

Corylus Avellana Ethyl Ester

4.3

A silky, non-greasy emollient derived from hazelnut oil that hydrates and softens skin without clogging pores.

Irritation

low

Source

semi-synthetic

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Emollient

Hazelnut Oil PEG-8 Esters

HAZELNUT SEED OIL PEG-8 ESTERS

4.0

A gentle, water-friendly emollient that softens skin without a greasy feel, suitable for most skin types.

Irritation

low

Source

semi-synthetic

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Emollient

Hazelnut Seed Oil Decyl Esters

HAZELNUT SEED OIL DECYL ESTERS

4.0

A silky, non-greasy emollient derived from hazelnut oil that helps moisturize and soften skin with a lightweight feel.

Irritation

low

Source

semi-synthetic

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Emollient

Helichrysum Wax

Helichrysum Angustifolium Wax

4.0

A gentle, plant-based wax that helps lock in moisture and gives a smooth, non-greasy feel to skincare products.

Irritation

low

Source

natural

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Emollient

Hemp Seed Cake Extract

CANNABIS SATIVA SEEDCAKE

3.8

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

Irritation

low

Source

natural

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Emollient

Hemp Seed Oil Glycereth-8 Esters

CANNABIS SATIVA SEED OIL GLYCERETH-8 ESTERS

4.0

A water-friendly version of hemp seed oil that moisturizes without greasiness, ideal for sensitive and acne-prone skin.

Irritation

low

Source

semi-synthetic

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Emollient

Henna Wax

Lawsonia Inermis Cera

4.0

A gentle plant wax from henna that adds richness and moisture to skincare without the staining properties of henna leaf.

Irritation

low

Source

natural

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Emollient

Heptadecane

N-HEPTADECANE

4.0

A lightweight, non-comedogenic emollient that gives a silky feel without clogging pores, ideal for oily and acne-prone skin types.

Irritation

low

Source

synthetic

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Emollient

Heptyl Undecylenate

Heptyl Undecylenate

4.0

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

Irritation

low

Source

synthetic

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Emollient

Heptyltetrahydrofuran

HEPTYLTETRAHYDROFURAN

3.5

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

Irritation

low

Source

synthetic

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Emollient

Heptylundecanol

HEPTYLUNDECANOL

4.0

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

Irritation

low

Source

synthetic

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Emollient

Hexacosyl Glycol

Hexacosyl Glycol

4.0

A gentle, non-greasy emollient that helps soften and smooth the skin without clogging pores.

Irritation

low

Source

synthetic

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Emollient

Hexacosyl Glycol Isostearate

Hexacosyl Glycol Isostearate

4.0

A gentle synthetic emollient that softens skin and improves product feel without clogging pores or causing irritation.

Irritation

low

Source

synthetic

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Emollient

Hexadecane

Hexadecane

3.8

Hexadecane is a lightweight, non-greasy emollient that helps moisturize the skin and improve product texture, but it offers no active benefits beyond basic softening.

Irritation

low

Source

synthetic

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Emollient

Hexadecene

HEXADECENE

3.5

Hexadecene is a lightweight synthetic emollient that helps products glide on smoothly without feeling greasy, but it offers no active skincare benefits.

Irritation

low

Source

synthetic

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Emollient

Hexadecyl Methicone

Hexadecyl Methicone

4.0

A lightweight silicone that smooths skin and reduces tackiness, generally well-tolerated and non-comedogenic.

Irritation

low

Source

synthetic

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Emollient

Hexadecyleicosanoic Acid

Hexadecyleicosanoic Acid

4.0

A gentle synthetic emollient that helps soften and smooth skin without clogging pores or causing irritation.

Irritation

low

Source

synthetic

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Emollient

Hexanediol Beeswax

Hexanediol Beeswax

3.8

Hexanediol Beeswax is a gentle, semi-synthetic emollient that helps lock in moisture and improve product texture without clogging pores.

Irritation

low

Source

semi-synthetic

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Emollient

Hexanetriol Beeswax

Hexanetriol Beeswax

3.8

A gentle, semi-synthetic wax that helps products feel smooth and stay stable, but offers no active skincare benefits.

Irritation

low

Source

semi-synthetic

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Emollient

Hexyl Benzoate

Hexyl Benzoate

4.0

Hexyl Benzoate is a gentle, lightweight emollient that helps products feel silky without clogging pores, making it a good choice for oily and sensitive skin types.

Irritation

low

Source

synthetic

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Emollient

Hexyl Dimethylolpropionate

Hexyl Dimethylolpropionate

3.8

A lightweight synthetic emollient that softens skin without greasiness, commonly used to improve product texture.

Irritation

low

Source

synthetic

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Emollient

Hexyl Hexanoate

Hexyl Hexanoate

4.0

Hexyl Hexanoate is a lightweight synthetic emollient that helps soften skin without clogging pores, commonly used to improve product texture and spreadability.

Irritation

low

Source

synthetic

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Emollient

Hexyl Isostearate

Hexyl Isostearate

4.0

Hexyl Isostearate is a lightweight, non-greasy emollient that helps soften skin and improve product texture without clogging pores.

Irritation

low

Source

synthetic

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Emollient

Hexyl Laurate

Hexyl Laurate

4.0

Hexyl Laurate is a gentle, non-greasy emollient that leaves skin feeling soft without clogging pores.

Irritation

low

Source

semi-synthetic

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Emollient

Hexyl Neopentanoate

Hexyl Neopentanoate

4.0

Hexyl Neopentanoate is a well-tolerated synthetic emollient that gives products a lightweight, non-greasy feel, making it a popular choice for oil-free and matte formulations.

Irritation

low

Source

synthetic

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Emollient

Hexyl Octanoate

Hexyl Octanoate

4.0

Hexyl Octanoate is a gentle, lightweight emollient that softens skin without clogging pores, making it a great choice for oily and acne-prone skin types.

Irritation

low

Source

synthetic

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Emollient

Hexyldecanoic Acid

Hexyldecanoic Acid

4.0

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

Irritation

low

Source

synthetic

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Emollient

Hexyldecanol

Hexyldecanol

4.2

Hexyldecanol is a gentle fatty alcohol that softens skin and helps products spread smoothly, with a very low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Benzoate

Hexyldecyl Benzoate

4.2

A lightweight, non-greasy emollient that improves product texture and skin feel, with a low risk of irritation or clogging pores.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Ethylhexanoate

HEXYLDECYL ETHYLHEXANOATE

4.0

A lightweight synthetic emollient that spreads easily and leaves skin feeling smooth without heavy residue.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Hexyldecanoate

HEXYLDECYL HEXYLDECANOATE

4.2

A lightweight, synthetic emollient that softens skin without clogging pores, ideal for oily and combination skin types.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Isostearate

HEXYLDECYL ISOSTEARATE

4.0

A lightweight synthetic emollient that makes products feel silky and spread easily, but may be moderately clogging for acne-prone skin.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Laurate

Hexyldecyl Laurate

4.2

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

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Octadecanol

HEXYLDECYLOCTADECANOL

4.0

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

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Oleate

HEXYLDECYL OLEATE

4.0

Hexyldecyl Oleate is a lightweight, non-greasy emollient that softens skin and improves product spreadability with a low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Palmitate

Hexyldecyl Palmitate

4.0

A lightweight, non-greasy emollient that helps skin feel soft and smooth without clogging pores.

Irritation

low

Source

synthetic

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Emollient

Hexyldecyl Stearate

HEXYLDECYL STEARATE

4.0

Hexyldecyl Stearate is a gentle, non-greasy emollient that helps moisturize and improve the feel of skincare products without clogging pores.

Irritation

low

Source

synthetic

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