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 35 of 35
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

Mineral source

Ammonium Molybdate

AMMONIUM MOLYBDATE

2.5

Ammonium molybdate is a mineral salt that provides molybdenum, but its benefits in skincare are unproven and it may cause irritation at higher concentrations.

Irritation

moderate

Source

synthetic

beautyskincaremineral
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Skin conditioning agent

Andesite Extract

Andesite Extract

3.5

A mineral-rich volcanic rock extract that may support skin barrier function, but research is limited and benefits are not well-established.

Irritation

low

Source

natural

beautyskincaremineral
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Mineral source

Bittern

Bittern

3.5

Bittern is a mineral-rich byproduct of sea salt production that may offer trace minerals to the skin, but evidence for specific benefits is limited.

Irritation

low

Source

natural

beautyskincaremineral
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Absorbent

Calcite

CALCITE

3.5

Calcite is a safe, natural mineral that helps absorb oil and provide gentle texture in powders and scrubs, but it offers no active skincare benefits.

Irritation

low

Source

natural

beautyskincaremineral
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Thickener

Calcium Chloride

Calcium Chloride

3.5

Calcium chloride is a mineral salt that can thicken formulas and tighten skin, but it may cause stinging or irritation for sensitive skin types.

Irritation

moderate

Source

synthetic

beautyskincaremineral
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Chelating Agent

Calcium Gluconate

Calcium Gluconate

4.0

Calcium Gluconate is a gentle mineral salt that helps stabilize formulas and may support the skin's natural barrier without causing irritation.

Irritation

low

Source

synthetic

beautyskincaremineral
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Skin conditioning agent

Ferric Glycerophosphate

Ferric Glycerophosphate

3.5

Ferric glycerophosphate is a gentle mineral salt that may offer antioxidant benefits and support skin vitality, but research is still emerging.

Irritation

low

Source

synthetic

beautyskincaremineral
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Antioxidant

Ferrous Gluconate

Ferrous Gluconate

3.5

Ferrous gluconate is a gentle iron source that may support antioxidant defenses in skincare, but its benefits are modest and it's more common in color cosmetics than in active treatment products.

Irritation

low

Source

synthetic

beautyskincaremineral
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Skin conditioning agent

Lithium Carbonate

LITHIUM CARBONATE

3.5

Lithium carbonate is an emerging skincare mineral that may help calm irritation and support skin barrier function, but research is still early.

Irritation

low

Source

synthetic

beautyskincaremineral
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Soothing Agent

Magnesium Bromide

MAGNESIUM BROMIDE

3.5

Magnesium bromide is a gentle mineral salt that may help calm irritated skin, but research is limited and it's not a mainstream ingredient.

Irritation

low

Source

natural

beautyskincaremineral
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Humectant

Magnesium Chloride

Magnesium Chloride

4.0

Magnesium chloride is a gentle mineral salt that helps hydrate, calm, and support the skin barrier, but it can feel drying if overused or used in high concentrations.

Irritation

low

Source

natural

beautyskincaremineral
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Skin conditioning

Magnesium Gluconate

Magnesium Gluconate

4.0

A gentle, water-soluble form of magnesium that helps calm skin and support its natural barrier without clogging pores.

Irritation

low

Source

synthetic

beautyskincaremineral
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Skin conditioning

Magnesium Glycerophosphate

MAGNESIUM GLYCEROPHOSPHATE

4.0

A gentle mineral salt that delivers magnesium to the skin, potentially supporting barrier repair and calming irritation.

Irritation

low

Source

synthetic

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Skin conditioning

Magnesium Glycinate

Magnesium Glycinate

4.0

A gentle, well-absorbed form of magnesium that may help calm stressed skin and support a healthy moisture barrier.

Irritation

low

Source

semi-synthetic

beautyskincaremineral
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Colorant

Magnesium Manganese Titanium Oxide

MAGNESIUM/MANGANESE/TITANIUM OXIDE

3.5

A safe, non-irritating mineral pigment that provides color and some UV protection, but its effectiveness as a sunscreen ingredient is limited compared to zinc oxide or titanium dioxide alone.

Irritation

low

Source

synthetic

beautyskincaremineral
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Absorbent

Magnesium Oxide

Magnesium Oxide

3.8

Magnesium oxide is a safe, non-irritating mineral that helps absorb excess oil and adjust product texture, but it offers no direct skin benefit beyond formulation support.

Irritation

low

Source

natural

beautyskincaremineral
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Soothing Agent

Magnesium Sulfate

Magnesium Sulfate

4.0

A gentle mineral salt that can soothe tired muscles and calm irritated skin when used in baths or masks.

Irritation

low

Source

natural

beautyskincaremineral
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Antioxidant

Manganese Chloride

Manganese Chloride

3.5

Manganese chloride is a trace mineral that may support antioxidant defenses in skin, but research on its topical benefits is still limited.

Irritation

low

Source

synthetic

beautyskincaremineral
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Skin conditioning agent

Manganese Glycerophosphate

Manganese Glycerophosphate

3.8

Manganese glycerophosphate is a gentle mineral salt that may support antioxidant activity in skincare, but research on its topical benefits is still limited.

Irritation

low

Source

synthetic

beautyskincaremineral
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Antioxidant

Manganese Sulfate

MANGANESE SULFATE

3.8

Manganese sulfate is a trace mineral that helps your skin's natural antioxidant system, but it's used in tiny amounts and is not a standout ingredient on its own.

Irritation

low

Source

synthetic

beautyskincaremineral
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Film Former

Mineral Complex Blend

MAGNESIUM/POTASSIUM/SILICON/FLUORIDE/HYDROXIDE/OXIDE

3.2

A blend of minerals that may help reinforce the skin barrier, but research on this specific combination is limited.

Irritation

low

Source

natural

beautyskincaremineral
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Opacifying Agent

Sapphire Extract

Sapphire Extract

3.5

Sapphire Extract adds a subtle shimmer and gentle physical exfoliation, but its skincare benefits beyond appearance are not well-studied.

Irritation

low

Source

natural

beautyskincaremineral
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Exfoliant

Sea Silt

Sea Silt

3.8

Sea silt is a gentle, mineral-rich exfoliant that can help polish skin and absorb excess oil without harshness.

Irritation

low

Source

natural

beautyskincareexfoliantmineral
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Exfoliant

Silt Extract

Silt Extract

3.8

Silt extract offers gentle physical exfoliation and a dose of trace minerals, but its benefits are largely anecdotal and product-dependent.

Irritation

low

Source

natural

beautyskincareexfoliantmineral
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Soothing Agent

Smithsonite Extract

Smithsonite Extract

3.0

Smithsonite is a mineral source of zinc carbonate, offering potential soothing and oil-absorbing benefits, but research on its cosmetic use is very limited.

Irritation

low

Source

natural

beautyskincaremineral
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pH adjuster

Sodium

Sodium

3.0

Sodium itself is rarely used alone in skincare; it appears as part of salts like sodium chloride or sodium hyaluronate, where it helps with texture, preservation, or delivery.

Irritation

low

Source

natural

beautyskincaremineral
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Skin conditioning agent

Sodium Molybdate

Sodium Molybdate

3.5

Sodium molybdate is a trace mineral salt that may help support the skin's natural antioxidant defenses, but research on topical benefits is still emerging.

Irritation

low

Source

synthetic

beautyskincaremineral
Read ingredient review

Texture enhancer

Tourmaline

TOURMALINE

3.5

Tourmaline is a mineral powder that may add a subtle glow and improve product feel, but its claimed energy benefits lack strong scientific backing.

Irritation

low

Source

natural

beautyskincaremineral
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Skin conditioning agent

Tourmaline Extract

Tourmaline Extract

3.5

Tourmaline extract is a mineral ingredient often marketed for its energizing and purifying effects, but scientific evidence supporting these claims is limited.

Irritation

low

Source

natural

beautyskincaremineral
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Soothing agent

Zinc

Zinc

4.0

Zinc is a well-studied mineral that helps calm irritation, control oil, and protect the skin barrier.

Irritation

low

Source

natural

beautyskincaremineral
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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
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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
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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
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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
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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
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