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

Antioxidant

Zinc Ascorbate Hydroxide

Zinc Ascorbate Hydroxide

4.0

A gentle, stabilized vitamin C derivative that pairs with zinc to support antioxidant protection and even skin tone with low irritation potential.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
Read ingredient review

Antioxidant

Zinc Aspartate

Zinc Aspartate

4.0

Zinc Aspartate is a gentle, antioxidant form of zinc that helps calm irritation and protect skin from environmental stress without the drying effect of some other zinc forms.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
Read ingredient review

Soothing agent

Zinc Azelate Hydroxide

ZINC AZELATE HYDROXIDE

4.0

A gentle, multi-tasking ingredient that combines the benefits of zinc and azelaic acid to calm skin and reduce shine.

Irritation

low

Source

synthetic

beautyskincaresoothing agent
Read ingredient review

Preservative

Zinc Borate

ZINC BORATE

3.0

Zinc borate is a synthetic preservative with antimicrobial properties, but its use in skincare is limited and may cause irritation for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincarepreservative
Read ingredient review

Absorbent

Zinc Carbonate

Zinc Carbonate

4.0

Zinc carbonate is a gentle mineral that soothes irritation and absorbs excess oil, making it a safe choice for sensitive and acne-prone skin.

Irritation

low

Source

natural

beautyskincaremineral
Read ingredient review

Film Former

Zinc Carboxydecyl Trisiloxane

ZINC CARBOXYDECYL TRISILOXANE

3.5

A synthetic silicone ingredient that forms a light, breathable film on skin, often used to improve texture and wear of products.

Irritation

low

Source

synthetic

beautyskincarefilm-former
Read ingredient review

Astringent

Zinc Chloride

ZINC CHLORIDE

3.5

Zinc chloride is an effective astringent and deodorant ingredient, but its potential for irritation makes it less suitable for sensitive skin or daily leave-on use.

Irritation

moderate

Source

synthetic

beautyskincareastringent
Read ingredient review

Antioxidant

Zinc Citrate

ZINC CITRATE

4.0

Zinc Citrate is a gentle, non-irritating ingredient that helps calm skin, reduce oiliness, and provide antioxidant protection without clogging pores.

Irritation

low

Source

synthetic

beautyskincareantioxidant
Read ingredient review

Surfactant

Zinc Coceth Sulfate

Zinc Coceth Sulfate

3.8

A gentle, coconut-derived surfactant that cleanses effectively with low irritation potential, suitable for sensitive skin.

Irritation

low

Source

semi-synthetic

beautyskincarecleanser
Read ingredient review

Surfactant

Zinc Coco-Sulfate

Zinc Coco-Sulfate

3.8

A gentler sulfate cleanser that effectively removes dirt and oil without stripping the skin, but may still be too drying for very sensitive or dry skin types.

Irritation

low

Source

semi-synthetic

beautyskincarecleansing agent
Read ingredient review

Antioxidant

Zinc Cysteinate

ZINC CYSTEINATE

4.0

A gentle antioxidant complex that pairs zinc with the amino acid cysteine to help calm and protect skin.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
Read ingredient review

Film Former

Zinc Dimethicone PEG-25 Phthalate

ZINC DIMETHICONE PEG-25 PHTHALATE

3.5

A silicone hybrid that helps products spread smoothly and resist water, but its phthalate component raises unnecessary concern despite being chemically different from controversial phthalates.

Irritation

low

Source

synthetic

beautyskincarefilm-former
Read ingredient review

Skin conditioning agent

Zinc Docosahexaenoate Hydroxide

Zinc Docosahexaenoate Hydroxide

3.8

A novel zinc–omega-3 complex that may help calm irritation and support the skin barrier, but research is still limited.

Irritation

low

Source

semi-synthetic

beautyskincareconditioning agent
Read ingredient review

Soothing Agent

Zinc Eicosapentaenoate Hydroxide

Zinc Eicosapentaenoate Hydroxide

3.8

A gentle, zinc-based omega-3 derivative that may help calm irritation and support the skin barrier, though research is still emerging.

Irritation

low

Source

semi-synthetic

beautyskincaresoothing agent
Read ingredient review

Skin conditioning

Zinc Ethylhexanoate

Zinc Ethylhexanoate

3.8

Zinc ethylhexanoate is a gentle, synthetic zinc salt that helps control odor and condition skin without common irritation.

Irritation

low

Source

synthetic

beautyskincaredeodorant
Read ingredient review

Skin conditioning agent

Zinc Fructose Diphosphate

Zinc Fructose Diphosphate

3.8

Zinc Fructose Diphosphate is a gentle, zinc-based ingredient that may help calm skin and support barrier repair, but research is still limited.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
Read ingredient review

Soothing agent

Zinc Gluconate

Zinc Gluconate

4.2

Zinc gluconate is a well-tolerated form of zinc that helps calm irritation and balance oil production without drying out the skin.

Irritation

low

Source

semi-synthetic

beautyskincaresoothing agent
Read ingredient review

Skin Conditioning Agent

Zinc Glutamate

Zinc Glutamate

4.0

Zinc Glutamate is a gentle, multi-tasking ingredient that helps calm skin, regulate oil, and support barrier health without common zinc irritation.

Irritation

low

Source

semi-synthetic

beautyskincaremineral
Read ingredient review

Antioxidant

Zinc Glycinate

Zinc Glycinate

4.2

Zinc glycinate is a well-tolerated, chelated zinc that offers antioxidant protection and soothing benefits without the irritation of other zinc forms.

Irritation

low

Source

semi-synthetic

beautyskincareantioxidant
Read ingredient review

Soothing agent

Zinc Glycyrrhetinate

ZINC GLYCYRRHETINATE

4.0

A gentle, dual-action ingredient that combines licorice root's anti-inflammatory power with zinc's protective benefits to calm redness and support skin recovery.

Irritation

low

Source

semi-synthetic

beautyskincaresoothing agent
Read ingredient review

Anti-aging agent

Zinc Hexapeptide-11

Zinc Hexapeptide-11

4.0

A synthetic peptide that may help firm skin and soften fine lines, with low irritation risk but limited independent research.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Skin conditioning agent

Zinc Hydrolyzed Collagen

Zinc Hydrolyzed Collagen

3.8

A hybrid ingredient that pairs collagen peptides with zinc, offering potential skin support and antioxidant benefits, though research is still emerging.

Irritation

low

Source

semi-synthetic

beautyskincareconditioning agent
Read ingredient review

Humectant

Zinc Hydrolyzed Hyaluronate

Zinc Hydrolyzed Hyaluronate

4.0

A gentle, hydrating ingredient that pairs hyaluronic acid's moisture-binding power with zinc's calming benefits.

Irritation

low

Source

semi-synthetic

beautyskincarehumectant
Read ingredient review

Buffering Agent

Zinc Hydroxide

Zinc Hydroxide

3.8

Zinc hydroxide is a gentle mineral ingredient that helps balance pH and offers mild soothing and protective benefits for sensitive or irritated skin.

Irritation

low

Source

natural

beautyskincaremineral
Read ingredient review

Soothing Agent

Zinc Indoleacetate Hydroxide

Zinc Indoleacetate Hydroxide

3.8

A gentle zinc compound that may help calm irritation and balance oil production, though research is still limited.

Irritation

low

Source

synthetic

beautyskincaresoothing agent
Read ingredient review

Soothing Agent

Zinc Isomerized Linoleate Hydroxide

Zinc Isomerized Linoleate Hydroxide

3.8

A gentle zinc-based ingredient that may help calm irritation and support the skin barrier, though research is still emerging.

Irritation

low

Source

semi-synthetic

beautyskincaresoothing agent
Read ingredient review

Antimicrobial

Zinc Lactate

Zinc Lactate

4.0

Zinc lactate is a gentle, effective deodorant ingredient that helps neutralize odor without blocking sweat glands, making it a popular alternative to aluminum-based antiperspirants.

Irritation

low

Source

synthetic

beautyskincaredeodorant
Read ingredient review

Thickener

Zinc Laurate

Zinc Laurate

3.8

A gentle thickening and opacifying agent that also helps skin feel smooth, but it's not a star active ingredient.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Sebum Regulator

Zinc Lauroyl Aspartate

Zinc Lauroyl Aspartate

4.0

A mild, non-drying zinc compound that helps balance oil production and soothe skin, making it a good choice for oily or combination skin types.

Irritation

low

Source

synthetic

beautyskincaresebum-regulator
Read ingredient review

Skin conditioning agent

Zinc Linoleate Hydroxide

ZINC LINOLEATE HYDROXIDE

4.0

A gentle zinc-based ingredient that helps condition skin and provide mild oil control without drying.

Irritation

low

Source

semi-synthetic

beautyskincareconditioning agent
Read ingredient review

Skin conditioning

Zinc Linolenate Hydroxide

Zinc Linolenate Hydroxide

3.8

A gentle zinc-based ingredient that helps condition skin and may offer mild oil-control benefits without common irritation.

Irritation

low

Source

semi-synthetic

beautyskincareconditioning agent
Read ingredient review

Skin conditioning

Zinc Magnesium Aspartate

Zinc Magnesium Aspartate

4.0

A gentle mineral complex that may help calm irritation and support skin barrier function, though research is still emerging.

Irritation

low

Source

semi-synthetic

beautyskincaremineral
Read ingredient review

Binder

Zinc Myristate

Zinc Myristate

4.0

Zinc Myristate is a safe, synthetic powder ingredient that improves the feel and application of makeup, but it offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincarecosmetic
Read ingredient review

Skin conditioning

Zinc Neodecanoate

Zinc Neodecanoate

4.0

Zinc Neodecanoate is a gentle, multifunctional ingredient that helps condition skin and may offer mild antimicrobial benefits, making it a good choice for sensitive or acne-prone skin.

Irritation

low

Source

synthetic

beautyskincareconditioning agent
Read ingredient review

Preservative

Zinc Nitrate

Zinc Nitrate

3.0

Zinc nitrate is a synthetic preservative and astringent that can help control bacteria and reduce oil, but it may be drying or irritating for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincarepreservative
Read ingredient review

Sunscreen Agent

Zinc Oxide

ZINC OXIDE

4.5

A safe, effective mineral sunscreen that sits on top of skin to reflect UV rays, ideal for sensitive skin.

Irritation

low

Source

natural

beautyskincaresunscreenmineral
Read ingredient review

Viscosity Controlling

Zinc Palmitate

Zinc Palmitate

3.8

Zinc Palmitate is a safe, non-irritating ingredient that helps give makeup and creams a smooth, silky feel without clogging pores.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Skin conditioning agent

Zinc Palmitoyl Nonapeptide-14

ZINC PALMITOYL NONAPEPTIDE-14

4.0

A synthetic peptide that may help improve skin firmness and reduce fine lines, with low irritation potential.

Irritation

low

Source

synthetic

beautyskincarepeptide
Read ingredient review

Antimicrobial

Zinc Peroxide

ZINC PEROXIDE

3.5

Zinc peroxide offers mild antimicrobial and drying benefits for acne-prone skin, but it can be irritating and is less common than alternatives like benzoyl peroxide.

Irritation

moderate

Source

synthetic

beautyskincareantimicrobial
Read ingredient review

Astringent

Zinc Phenolsulfonate

Zinc Phenolsulfonate

3.8

Zinc Phenolsulfonate helps tighten pores and reduce sweat odor, but it can be drying for sensitive or dry skin types.

Irritation

low

Source

synthetic

beautyskincareastringent
Read ingredient review

Bulking Agent

Zinc Phosphate

Zinc Phosphate

3.5

Zinc Phosphate is a safe, non-irritating mineral powder used to add bulk and opacity to makeup, but it offers no active skincare benefits.

Irritation

low

Source

synthetic

beautyskincaretexturizer
Read ingredient review

Anti-inflammatory

Zinc Picolinate

Zinc Picolinate

4.0

Zinc Picolinate is a gentle, oil-regulating ingredient that helps calm inflammation and may reduce breakouts without drying the skin.

Irritation

low

Source

synthetic

beautyskincareanti-inflammatory
Read ingredient review

Soothing agent

Zinc Pyridoxal 5-Phosphate

Zinc Pyridoxal 5-Phosphate

4.0

A gentle, multitasking ingredient that combines vitamin B6 and zinc to help calm skin and balance oil production.

Irritation

low

Source

semi-synthetic

beautyskincaresoothing agent
Read ingredient review

Antimicrobial

Zinc Pyrithione

Zinc Pyrithione

4.2

Zinc pyrithione is a well-studied antimicrobial that helps control dandruff and scalp flaking, but it may cause mild irritation for sensitive skin.

Irritation

low

Source

synthetic

beautyskincareantimicrobial
Read ingredient review

Anti-Aging Agent

Zinc Retinoate Hydroxide

ZINC RETINOATE HYDROXIDE

4.0

A gentler retinoid that aims to give you the anti-aging perks of retinoic acid with less redness and peeling.

Irritation

low

Source

semi-synthetic

beautyskincareactive
Read ingredient review

Odor Absorbent

Zinc Ricinoleate

Zinc Ricinoleate

4.0

Zinc Ricinoleate is a gentle, effective odor absorber that traps odor molecules without blocking sweat glands, making it a popular alternative to aluminum-based deodorants.

Irritation

low

Source

semi-synthetic

beautyskincaredeodorant
Read ingredient review

Film Former

Zinc Rosinate

ZINC ROSINATE

3.5

Zinc Rosinate is a safe, non-irritating film former that helps makeup and hair products stay put without clogging pores.

Irritation

low

Source

semi-synthetic

beautyskincarecosmetic
Read ingredient review

Antimicrobial

Zinc Salicylate

Zinc Salicylate

3.5

Zinc Salicylate combines zinc's soothing properties with salicylic acid's exfoliating action, but it can be irritating for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincareantimicrobial
Read ingredient review

Absorbent

Zinc Silicate

Zinc Silicate

3.5

Zinc Silicate is a safe, non-irritating mineral powder that helps absorb oil and gives a smooth finish, but it offers no active skincare benefits.

Irritation

low

Source

natural

beautyskincaretexturizer
Read ingredient review

Thickener

Zinc Stearate

ZINC STEARATE

3.8

Zinc Stearate is a safe, widely used thickener and binder in powders, but may be moderately comedogenic for acne-prone skin.

Irritation

low

Source

synthetic

beautyskincarecosmetic ingredient
Read ingredient review

Remineralizing agent

Zinc Strontium Hydroxyapatite

Zinc/Strontium Fluoride Hydroxyapatite

3.8

A mineral compound that helps strengthen enamel and reduce sensitivity, but its cosmetic skincare benefits are less established.

Irritation

low

Source

synthetic

beautyoral careskincare
Read ingredient review

Astringent

Zinc Sulfate

ZINC SULFATE

3.8

Zinc sulfate is a gentle astringent that can help calm skin and reduce excess oil, but it's not a primary treatment for acne or inflammation.

Irritation

low

Source

synthetic

beautyskincareastringent
Read ingredient review

Opacifying Agent

Zinc Sulfide

ZINC SULFIDE

3.0

Zinc sulfide is a safe, low-irritation mineral pigment used to add opacity or a slight white tint to cosmetics, but it offers no skincare benefits.

Irritation

low

Source

synthetic

beautyskincarecolorant
Read ingredient review

Antimicrobial

Zinc Thiosalicylate

Zinc Thiosalicylate

3.5

Zinc Thiosalicylate is a synthetic zinc compound that may help control dandruff and surface bacteria, but research is limited and it can be irritating for sensitive skin.

Irritation

moderate

Source

synthetic

beautyskincareantimicrobial
Read ingredient review

Antifungal agent

Zinc Undecylenate

Zinc Undecylenate

4.0

A gentle antifungal ingredient that helps manage yeast and bacteria on skin, often used in deodorants and foot care.

Irritation

low

Source

synthetic

beautyskincareantifungal
Read ingredient review