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 25 of 265
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

Soothing Agent

Sasa Veitchii Extract

SASA VEITCHII EXTRACT

3.8

A gentle bamboo leaf extract with antioxidant and soothing potential, but human skin research is still limited.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Sasa Veitchii Leaf/Stem Water

SASA VEITCHII LEAF/STEM WATER

3.8

A gentle, antioxidant-rich bamboo water that soothes and hydrates, but research on its specific benefits is still emerging.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Sea Silt Extract

Maris Limus Extract

4.0

A gentle, mineral-packed marine extract that helps calm and nourish the skin without clogging pores.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Sea Wormwood Oil

Artemisia Maritima Herb Oil

3.5

Sea Wormwood Oil offers soothing and antimicrobial benefits but can be irritating for sensitive skin due to its essential oil content.

Irritation

moderate

Source

natural

beautyskincaresoothing
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Humectant

Seaweed Extract

Undaria Pinnatifida Leaf/Stem Extract

4.0

A gentle, hydrating seaweed extract that helps soothe and protect the skin, making it a great choice for sensitive or dry skin types.

Irritation

low

Source

natural

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Humectant

Seaweed Extract Blend

ASCOPHYLLUM NODOSUM/FUCUS VESICULOSUS/LAMINARIA CLOUSTONI/LAMINARIA DIGITATA EXTRACT

4.0

A gentle, nutrient-packed seaweed blend that hydrates and soothes skin with antioxidant benefits.

Irritation

low

Source

natural

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Humectant

Seaweed Yeast Ferment

SACCHAROMYCES/LAMINARIA SACCHARINA FERMENT

4.0

A fermented seaweed-yeast complex that helps hydrate and soothe skin while supporting a healthy barrier.

Irritation

low

Source

biotech

beautyskincarehumectantsoothing
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Antioxidant

Skullcap Root Ferment Filtrate

LACTOBACILLUS/SCUTELLARIA BAICALENSIS ROOT EXTRACT FERMENT FILTRATE

4.0

A fermented botanical extract that offers antioxidant and soothing benefits, but research is mostly lab-based and individual results vary.

Irritation

low

Source

biotech

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Humectant

Sphagnum Magellanicum Extract

Sphagnum Magellanicum Extract

4.0

A gentle, water-loving moss extract that helps hydrate and calm the skin, but research on its specific benefits is still emerging.

Irritation

low

Source

natural

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Soothing Agent

Stinging Nettle Juice

Urtica Dioica Juice

3.8

A gentle, antioxidant-rich plant juice that can help calm irritated skin and provide light hydration.

Irritation

low

Source

natural

beautyskincaresoothing
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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 Violet Flower Water

VIOLA ODORATA FLOWER WATER

3.8

A gentle floral water that may help calm sensitive skin and provide light hydration, but lacks strong clinical evidence for most claims.

Irritation

low

Source

natural

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Antioxidant

Taisou Ekisu

Taisou Ekisu

4.0

Taisou Ekisu (jujube extract) is a gentle, antioxidant-rich botanical that helps soothe skin and protect against environmental stress, but it is not a standout active for dramatic results.

Irritation

low

Source

natural

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Soothing Agent

Tea Tree Leaf Water

MELALEUCA ALTERNIFOLIA LEAF WATER

3.8

A milder alternative to tea tree oil, tea tree leaf water offers gentle antimicrobial benefits with a much lower risk of irritation.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing agent

Thyme Leaf Water

THYMUS VULGARIS LEAF WATER

3.8

Thyme Leaf Water offers a mild, natural way to add light antimicrobial and soothing benefits to skincare, but its effects are subtle and best for those who enjoy botanical ingredients.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Verbena Flower Water

VERBENA OFFICINALIS FLOWER WATER

3.8

A gentle, aromatic flower water that adds a light citrus scent and mild soothing feel to skincare products, but lacks strong clinical evidence for specific skin benefits.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

Verbena Water

VERBENA OFFICINALIS WATER

3.8

Verbena Water offers a gentle, aromatic alternative to plain water in toners and mists, but its benefits beyond mild soothing are not strongly supported by research.

Irritation

low

Source

natural

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Soothing Agent

White Dead Nettle Flower Water

LAMIUM ALBUM FLOWER WATER

3.8

A mild, floral water that may help calm sensitive skin and provide light antioxidant support, but research is limited.

Irritation

low

Source

natural

beautyskincaresoothing
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Soothing Agent

White Rose Floral Water

ROSA ALBA FLOWER WATER

4.0

A gentle, lightly fragrant floral water that can soothe and hydrate skin, but its benefits are mostly from water content and mild aromatic compounds.

Irritation

low

Source

natural

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Soothing Agent

Wild Lettuce Leaf Juice

Lactuca Scariola Sativa Leaf Juice

3.8

A gentle, plant-derived juice that may help calm irritated skin and provide light hydration, but scientific evidence is limited.

Irritation

low

Source

natural

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Soothing Agent

Wild Pansy Flower Water

Viola Tricolor Flower/Leaf/Stem Water

4.0

A mild, plant-derived water that helps calm irritated or sensitive skin, but its benefits are subtle and best for daily soothing rather than dramatic results.

Irritation

low

Source

natural

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Soothing Agent

Wild Turmeric Root Water

Curcuma Aromatica Root Water

4.0

A gentle, antioxidant-rich water from wild turmeric that may help calm skin and provide a subtle glow.

Irritation

low

Source

natural

beautyskincaresoothing
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Humectant

Yeast Niacinamide Ferment

Saccharomyces/Niacinamide Ferment Lysate Filtrate

4.0

A gentle, biotech-derived ingredient that pairs yeast ferment with niacinamide to help hydrate, soothe, and support a healthy-looking skin barrier.

Irritation

low

Source

biotech

beautyskincarehumectantsoothing
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