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

Soothing Agent

Fermented Botanical Oil Complex

Pseudozyma Epicola/Soybean Flour/Apricot Kernel Oil/Olive Fruit Oil/Sweet Almond Oil/Sunflower Seed Oil/Licorice Root Extract Ferment Extract Filtrate

4.0

A fermented blend of nourishing oils and licorice root extract that may offer gentle soothing and barrier support, though research on this specific complex is limited.

Irritation

low

Source

biotech

beautyskincaresoothingemollient
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Emollient

Fermented Camellia Oil Complex

KLUYVEROMYCES/LACTOBACILLUS/CAMELLIA JAPONICA SEED OIL FERMENT FILTRATE

4.0

A fermented oil complex that may offer gentler hydration and barrier support than plain camellia oil, though human studies are limited.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Camellia Oil Extract

Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate

4.0

A gentle, fermented oil extract that hydrates and softens skin with low irritation potential, though research is still emerging.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Canola Seed Oil Complex

KLUYVEROMYCES/LACTOBACILLUS/BRASSICA NAPUS SEED OIL FERMENT FILTRATE

4.0

A gentle, fermented oil complex that may help strengthen the skin barrier and improve hydration with minimal irritation risk.

Irritation

low

Source

biotech

beautyskincareemollientskin conditioning
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Emollient

Fermented Jojoba Oil Extract

PSEUDOZYMA EPICOLA/JOJOBA SEED OIL FERMENT EXTRACT FILTRATE

4.0

A gentle, fermented jojoba oil extract that helps moisturize and soothe skin without clogging pores.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Macadamia Oil Extract

Pseudozyma Epicola/Macadamia Seed Oil Ferment Extract Filtrate

4.0

A gentle, fermented oil extract that helps soften and soothe skin while supporting a healthy moisture barrier.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Madhuca Seed Oil

CANDIDA BOMBICOLA/MADHUCA LONGIFOLIA SEED OIL FERMENT EXTRACT

3.8

A fermented oil extract that combines traditional emollience with modern biotech, but research on its unique benefits is still limited.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Multi-Oil & Seed Extract Complex

CANDIDA TSUKUBAENSIS/ARGANIA SPINOSA KERNEL OIL/OLIVE FRUIT OIL/ (ADANSONIA DIGITATA/CAMELLIA SINENSIS/ORBIGNYA OLEIFERA/CALOPHYLLUM INOPHYLLUM) SEED OIL/ PHASEOLUS RADIATUS SEED EXTRACT FERMENT FILTRATE

4.0

A fermented blend of nutrient-rich oils and seed extract that may boost skin softness and antioxidant protection, though individual oil sensitivities vary.

Irritation

low

Source

biotech

beautyskincareemollientantioxidant
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Emollient

Fermented Oil & Seed Extract Complex

CANDIDA TSUKUBAENSIS/OLIVE FRUIT OIL/ (ADANSONIA DIGITATA/ORBIGNYA OLEIFERA/CALOPHYLLUM INOPHYLLUM) SEED OIL/ PHASEOLUS RADIATUS SEED EXTRACT FERMENT EXTRACT

3.8

A fermented oil blend that may offer gentle nourishment, but its complexity makes it hard to predict individual reactions.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Oil Blend

KLUYVEROMYCES/LACTOBACILLUS/ADANSONIA DIGITATA SEED OIL/CALOPHYLLUM INOPHYLLUM SEED OIL/OLIVE SEED OIL/ORBIGNYA OLEIFERA SEED OIL/PHASEOLUS RADIATUS SEED OIL FERMENT FILTRATE

4.0

A fermented oil blend that combines multiple plant oils with probiotics to support skin barrier function and provide antioxidant benefits.

Irritation

low

Source

mixed

beautyskincareemollient
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Emollient

Fermented Oil Complex

Pseudozyma Epicola/Soybean Flour/Apricot Kernel Oil/Olive Fruit Oil/Sweet Almond Oil/Sunflower Seed Oil/Lithospermum Erythrorhizon Root Ferment Extract Filtrate

4.0

A fermented oil blend that may help soothe and condition skin, but research is still early.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Olive Oil Complex

PSEUDOZYMA TSUKUBAENSIS/OLIVE OIL/GLYCERIN/SOY PROTEIN FERMENT

4.0

A gentle, fermented oil complex that helps soften and condition skin while supporting a healthy moisture barrier.

Irritation

low

Source

biotech

beautyskincareemollientconditioning
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Emollient

Fermented Peach Kernel Oil

KLUYVEROMYCES/LACTOBACILLUS/PEACH KERNEL FERMENT OIL FILTRATE

4.0

A gentle, fermented oil that moisturizes and supports the skin barrier with antioxidant properties, suitable for most skin types.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Pine Nut Oil Complex

Kluyveromyces/Lactobacillus/Pinus Koraiensis Seed Oil Ferment Filtrate

4.0

A gentle, fermented oil complex that may help soften and condition skin while supporting a balanced microbiome.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Safflower Oil Complex

KLUYVEROMYCES/LACTOBACILLUS/SAFFLOWER SEED OIL FERMENT FILTRATE

4.0

A gentle fermented oil that may help strengthen the skin barrier and improve hydration, but research is still early.

Irritation

low

Source

biotech

beautyskincareemollientskin conditioning
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Emollient

Fermented Sesame Seed Oil

KLUYVEROMYCES/LACTOBACILLUS/SESAME SEED FERMENT OIL FILTRATE

4.0

A fermented oil that combines the nourishing benefits of sesame oil with potential skin-soothing and conditioning effects from fermentation.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Sunflower Seed Oil

SACCHAROMYCES/SUNFLOWER SEED OIL FERMENT FILTRATE

4.0

A gentle, fermented oil that supports skin barrier function and hydration without clogging pores.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fermented Walnut Seed Oil

KLUYVEROMYCES/LACTOBACILLUS/WALNUT SEED FERMENT OIL FILTRATE

3.8

A fermented oil that may offer gentle moisturizing and soothing benefits, but research is still emerging.

Irritation

low

Source

biotech

beautyskincareemollient
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Emollient

Fevillea Trilobata Seed Oil

Fevillea Trilobata Seed Oil

4.3

A lightweight, fast-absorbing oil rich in linoleic acid and vitamin E, great for dry or normal skin without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Fish Lecithin Oil

PISCUM LECUR OIL

3.8

Fish Lecithin Oil is a nourishing emollient that helps soften and condition skin, but may be too rich for oily or acne-prone skin.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Fish Liver Oil

PISCUM IECUR OIL

4.0

Fish liver oil is a rich emollient that helps soften and soothe dry skin, but its strong scent and comedogenic potential may not suit everyone.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Fish Oil

FISH OIL

3.8

Fish oil is a nourishing emollient rich in omega-3s, but its fishy scent and moderate comedogenic risk mean it's best for dry, non-acne-prone skin.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Fucus Crispus Thalle Oil

Fucus Crispus Thalle Oil

3.8

A gentle, seaweed-derived oil that helps soften and soothe the skin, but research on its specific benefits is still limited.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Furfuryl Palmitate

Furfuryl Palmitate

3.8

A gentle emollient ester that softens skin with low irritation potential, but research on its long-term benefits is limited.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Fusanus Acuminatus Seed Oil

FUSANUS ACUMINATUS SEED OIL

4.0

A lightweight, non-greasy oil that hydrates and soothes skin, with a unique fatty acid profile that supports barrier function.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Gac Seed Aril Oil

Momordica cochinchinensis seed aril oil

4.0

Gac seed aril oil is a lightweight, antioxidant-rich oil that may help protect skin from environmental stress while providing gentle moisture.

Irritation

low

Source

natural

beautyskincareemollient
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Skin Conditioning

Gamma-Docosalactone

GAMMA-DOCOSALACTONE

3.8

Gamma-Docosalactone is a gentle synthetic emollient that helps soften and condition skin, but research on its long-term benefits is still limited.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Garcinia Indica Seed Butter

GARCINIA INDICA SEED BUTTER

4.3

A lightweight, non-greasy plant butter that deeply moisturizes without clogging pores, ideal for dry or sensitive skin.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Geranyl Nonanoate

Geranyl Nonanoate

4.0

A lightweight synthetic ester that softens skin without clogging pores, making it a good choice for oily or combination skin types.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Ginseng Root Oil

Panax Ginseng Root Oil

4.0

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

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Ginseng Seed Oil

Panax Ginseng Seed Oil

4.0

A gentle, antioxidant-rich oil that hydrates and soothes without clogging pores, ideal for dry or sensitive skin.

Irritation

low

Source

natural

beautyskincareemollient
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Skin conditioning

Glucose Pentaacetate

Glucose Pentaacetate

3.8

A gentle, sugar-derived emollient that helps soften and condition the skin without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glucose Pentaisovalerate

Glucose Pentaisovalerate

3.8

A gentle synthetic emollient that softens skin without heavy greasiness, but research on its long-term benefits is still limited.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glycereth-18 Benzoate

GLYCERETH-18 BENZOATE

4.0

A gentle, non-greasy emollient that improves product spreadability and leaves skin feeling soft without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-18 Ethylhexanoate

GLYCERETH-18 ETHYLHEXANOATE

4.0

A gentle, water-soluble emollient that hydrates and softens skin without feeling greasy, suitable for most skin types.

Irritation

low

Source

semi-synthetic

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Emollient

Glycereth-20 Benzoate

GLYCERETH-20 BENZOATE

4.0

A gentle, water-soluble emollient that helps products feel silky and spread easily without greasiness.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-20 Cocoate

GLYCERETH-20 COCOATE

4.0

A mild, coconut-derived ingredient that softens skin and helps cleansers foam without stripping moisture.

Irritation

low

Source

semi-synthetic

beautyskincareemollientsurfactant
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Emollient

Glycereth-25 PCA Isostearate

GLYCERETH-25 PCA ISOSTEARATE

4.0

A gentle, multi-tasking ingredient that hydrates and softens skin without feeling heavy or greasy.

Irritation

low

Source

semi-synthetic

beautyskincareemollienthumectant
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Emollient

Glycereth-26 Caprylate

GLYCERETH-26 CAPRYLATE

4.0

A gentle, water-loving emollient that softens skin and helps other ingredients spread evenly without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincareemollientsurfactant
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Emollient

Glycereth-3 Sunflowerate

GLYCERETH-3 SUNFLOWERATE

4.3

A gentle, sunflower-derived emollient that softens skin without clogging pores, ideal for sensitive and dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-6 Tricocoate

GLYCERETH-6 TRICOCOATE

4.0

A mild, coconut-derived emollient that helps soften skin without clogging pores, making it a good choice for sensitive and oily skin types.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glycereth-6 Triisostearate

GLYCERETH-6 TRIISOSTEARATE

4.0

A gentle, synthetic emollient that helps products spread smoothly and feel silky without clogging pores or causing irritation.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glycereth-7 Benzoate

GLYCERETH-7 BENZOATE

4.0

Glycereth-7 Benzoate is a gentle, semi-synthetic emollient that helps products feel silky and spread easily without clogging pores or causing irritation.

Irritation

low

Source

semi-synthetic

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Emollient

Glycereth-7 Caprylate/Caprate

GLYCERETH-7 CAPRYLATE/CAPRATE

4.3

A gentle, water-friendly emollient that softens skin without a greasy feel, ideal for lightweight formulas.

Irritation

low

Source

semi-synthetic

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Emollient

Glycereth-7 Diisononanoate

GLYCERETH-7 DIISONONANOATE

4.0

A gentle, synthetic emollient that softens skin without clogging pores, ideal for lightweight formulas.

Irritation

low

Source

synthetic

beautyskincareemollient
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Emollient

Glycereth-7 Triacetate

GLYCERETH-7 TRIACETATE

4.0

A gentle, modified glycerin that helps soften and smooth skin without the sticky feel of plain glycerin.

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glyceryl Adipate

Glyceryl Adipate

4.0

A gentle emollient that hydrates and smooths skin without clogging pores, suitable for most skin types.

Irritation

low

Source

semi-synthetic

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Emollient

Glyceryl Arachidate

Glyceryl Arachidate

4.0

A gentle, plant-based emollient that softens skin and improves product feel without clogging pores.

Irritation

low

Source

natural

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Emollient

Glyceryl Arachidonate

Glyceryl Arachidonate

4.0

A gentle, barrier-supporting ester that helps skin feel soft and hydrated without clogging pores.

Irritation

low

Source

semi-synthetic

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Emollient

Glyceryl Behenate

Glyceryl Behenate

4.2

A gentle, plant-based emollient that improves product texture and skin feel without clogging pores.

Irritation

low

Source

natural

beautyskincareemollient
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Emollient

Glyceryl Behenate/Eicosadioate

GLYCERYL BEHENATE/EICOSADIOATE

4.0

A gentle, non-greasy emollient that helps soften and smooth the skin with a low risk of irritation or clogged pores.

Irritation

low

Source

synthetic

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Emollient

Glyceryl Caprate

Glyceryl Caprate

4.5

A mild, plant-derived emollient that helps soften skin and stabilize formulas without clogging pores.

Irritation

low

Source

natural

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Emollient

Glyceryl Capryl Ether

GLYCERYL CAPRYL ETHER

4.0

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

Irritation

low

Source

semi-synthetic

beautyskincareemollient
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Emollient

Glyceryl Caprylate

Glyceryl Caprylate

4.5

A mild, skin-friendly ingredient that helps products feel smooth and spread easily without clogging pores.

Irritation

low

Source

natural

beautyskincareemollientemulsifier
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Emollient

Glyceryl Caprylate/Caprate

GLYCERYL CAPRYLATE/CAPRATE

4.5

A gentle, plant-derived emollient and emulsifier that softens skin and helps stabilize formulas without clogging pores.

Irritation

low

Source

natural

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Emollient

Glyceryl Cocoate

Glyceryl Cocoate

4.2

Glyceryl cocoate is a mild, coconut-derived ingredient that moisturizes and helps blend oil and water in your skincare products.

Irritation

low

Source

natural

beautyskincareemollient
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