The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2277 of them. What each one does, what it works well with, and what to watch for.

All 2277 ingredients — page 51 of 95

Other
Menthoxypropanediol

A synthetic menthol derivative (propanediol ether of menthol) that provides a prolonged cooling sensation with lower volatility and reduced irritation compared to pure menthol.

Cooling agentSkin-conditioningSensory modifier
Delivers a long-lasting cooling sensation on skinLess volatile and more substantive than mentholLower irritation potential than free menthol at equivalent cooling intensity
May cause tingling or mild irritation in very sensitive individualsCross-reactivity possible in those with menthol sensitivity
Other
Menthyl Ethylamido Oxalate

A synthetic cooling agent derived from menthol that provides a refreshing cooling sensation without the irritation potential of traditional menthol.

cooling-agentskin-conditioning
Provides instant, long-lasting cooling sensationGentle to skin and compatible with mucous membranesDoes not cause stinging or burning unlike menthol
Other
Menthyl Lactate

A synthetic cooling agent derived from menthol and lactic acid that provides long-lasting freshness.

cooling agentmasking agent
Provides prolonged cooling sensation on skinLess irritating than pure mentholMoisturizing properties without strong menthol odor
Humectant
Menthyl PCA

The menthyl ester of pyrrolidone carboxylic acid (PCA) that functions as a humectant and long-lasting coolant, locking in moisture while delivering a gentle cooling effect.

humectantcooling-agentskin-conditioning
Attracts and retains moisture in skinProvides a sustained cooling sensationNon-volatile coolant that does not evaporate like menthol
Antioxidant
Menyanthes Trifoliata Leaf Extract

An extract from the leaves of Menyanthes trifoliata (buckbean/bogbean) that provides antioxidant protection and has been shown in vitro to support laminin production.

antioxidantskin-conditioning
Shown to increase laminin production in vitroAntioxidant activitySkin-conditioning
Humectant
Methacryloyloxyethyl Phosphorylcholine

A zwitterionic phosphorylcholine monomer that mimics the polar head group of cell membrane phospholipids, used in cosmetics to deliver lasting hydration and support the skin barrier.

humectantfilm-formerskin-conditioning
Biomimetic phospholipid-head group that retains moistureExcellent biocompatibility and low irritation potentialHelps maintain skin barrier function
Emollient
Methicone
METHICONE

A low-viscosity, linear polysiloxane with only methyl substituents (monomethylsilicone). Lighter than dimethicone. Used in Elixir's brightening emulsion for silky, lightweight skin conditioning.

emollientskin-conditioning
Lightweight siliconeProvides silky skin feel without heaviness
+ Dimethicone+ Cyclopentasiloxane
Antioxidant
Methionine

An essential sulfur-containing amino acid that functions as an antioxidant in cosmetics, helping protect formulas and skin from oxidative damage.

antioxidantskin-conditioning
Provides antioxidant protection by scavenging reactive oxygen speciesSupports skin protein synthesis and repair
Other
Methoxy PEG-114/Polyepsilon Caprolactone

Methoxy PEG-114/Polyepsilon Caprolactone is an amphiphilic graft copolymer composed of a polyethylene glycol (PEG-114) backbone with pendant polycaprolactone chains, capped at one end with a methoxy group. The hydrophilic PEG segment and hydrophobic caprolactone segments give it surface-active, emulsification, and rheology-modifying properties. Used in premium Korean skincare (notably Sulwhasoo's ginseng-based formulas) as a texture enhancer that imparts a silky, non-greasy finish.

viscosity-controllingemulsifyingfilm-forming
Amphiphilic graft copolymer of hydrophilic PEG-114 and hydrophobic polycaprolactone that functions as a rheology modifier and texture enhancer in premium emulsionsImparts a silky, lightweight sensory profile to heavy emulsions, reducing tackiness from high-molecular-weight activesCompatible with sensitive formulations — non-irritating polymeric modifier used by Sulwhasoo in their premium ginseng serum and cream lines
+ Glycerin+ Carbomer+ Dimethicone
UV filter
Methoxypropylamino Cyclohexenylidene Ethoxyethylcyanoacetate

A synthetic UVA1 organic UV filter (trade name Mexoryl 400 / UVMune 400) developed by L'Oréal that absorbs ultra-long UVA radiation with a peak at 385 nm, approved in the EU at up to 3%.

uv-filteruva-filter
Absorbs ultra-long UVA1 radiation (peak ~385 nm) not covered by most filtersSignificantly extends UVA protection range when combined with other filters
Not approved by FDA for use in US sunscreens as of 2024; approved in EU up to 3%
Humectant
Methyl Gluceth-10

A methyl glucoside ethoxylate with 10 ethylene oxide units used as a mild humectant and emollient, providing gentle hydration with a non-sticky finish.

humectantemollient
Provides lasting humectant hydrationNon-tacky, lightweight skin feel
Humectant
Methyl Gluceth-20

A methyl glucoside ethoxylate (20 ethylene oxide units) used as a gentle humectant that provides lasting hydration with a non-tacky finish.

humectantemollient
Long-lasting humectant hydrationImparts a light, non-sticky skin feel
Other
Methyl Hydroxyethylcellulose

A cellulose ether derivative used as a rheology modifier; provides thickening and film-forming properties in gel-format masks and cleansers.

thickenerfilm-forminggelling-agent
Creates smooth, uniform gel textures in sheet mask and wash-off formulasHelps suspend ingredients evenly throughout the formula
Other
Methyl Methacrylate Crosspolymer

A crosslinked acrylic polymer used as a film-former and texture agent that provides a soft, skin-blurring finish and helps control shine in sunscreens and makeup.

film-formertexture-enhancerabsorbent
Improves skin feel and product textureAbsorbs excess oil and reduces shineCreates a soft-focus, blurring effect
Other
Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer
METHYL METHACRYLATE/GLYCOL DIMETHACRYLATE CROSSPOLYMER

Crosslinked acrylic microspheres that act as optical diffusers in skincare and makeup primers. They scatter light to minimize the visible appearance of pores and surface texture.

soft-focustexture-modifier
Microsphere particles scatter light to blur the appearance of pores and fine linesCreates a soft-focus, skin-smoothing visual effect
Emollient
Methyl Trimethicone

A low-viscosity, volatile linear silicone (trimethylsiloxy-terminated methyl siloxane) used as a lightweight emollient and carrier, evaporating after application to leave a dry, non-greasy finish.

emollientsolventvolatile-agent
Ultra-lightweight, volatile silicone that evaporates quickly for a dry finishImparts silky texture without the heaviness of dimethiconeImproves spreadability and wear of cosmetic formulas
UV filter
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

A hybrid broadband organic UV filter (BASF Tinosorb M) that absorbs and scatters UVA and UVB radiation, approved in the EU and Asia at a maximum concentration of 10% but not FDA-approved for the US market.

uv-filterbroad-spectrumuva-filteruvb-filter
Broad-spectrum UVA+UVB protection (peak absorption 305 nm UVB, 360 nm UVA)Photostable — does not degrade on UV exposureWater-dispersible microfine particle; works well in aqueous and emulsion systems
Not FDA-approved for use in US OTC sunscreensLarge particle size may leave a slight whitish cast at high concentrations
Humectant
Methylgluceth-10

A corn-derived humectant and solvent with effective water-retention properties that enhances skin hydration and improves product texture.

humectantskin-conditioningsolvent
Effective water-retention properties prevent moisture lossProvides smooth, silky feel to formulationsEnhances spreadability of cosmetic products
Emollient
Methylheptyl Laurate

A lauric acid ester of methylheptanol used as a lightweight emollient that improves the skin feel and spreadability of cosmetic formulas.

emollientskin-conditioning
Lightweight emollient that improves skin feelEnhances spreadability without greasiness
Preservative
Methylparaben

A short-chain paraben preservative permitted up to 0.4% in cosmetics under EU and US regulations; effective against bacteria and fungi.

preservative
Broad-spectrum antimicrobial preservation at low concentrations
Weak estrogenic activity; subject to ongoing regulatory scrutinyEU SCCS and CIR have deemed safe at ≤0.4% (as acid); avoid in products for infant nappy area
Emollient
Methylphenyl Polysiloxane
METHYLPHENYL POLYSILOXANE

A phenyl-substituted polysiloxane (silicone) where some methyl groups are replaced by phenyl groups. The phenyl substitution increases the refractive index, producing enhanced gloss and luminosity on skin. Used in Transino's UV Protector for a smooth, luminous finish.

emollientfilm-formerskin-conditioning
Higher refractive index than dimethicone — creates luminous, glossy skin appearanceNon-greasy, lightweight
+ Dimethicone+ Cyclopentasiloxane
Emollient
Methylphenylpolysiloxane
PHENYL DIMETHICONE

A phenyl-substituted silicone polymer used in Japanese skincare for its luxurious, glossy skin feel and refractive index similar to natural skin lipids.

emollientskin-conditioning
Adds shine and silkinessLightweight non-greasy emollient
+ Dimethicone
Solvent / vehicle
Methylpropanediol

A multifunctional glycol solvent and humectant that also boosts penetration of other actives.

humectant
Light hydrationImproves absorption
Other
Mica

A naturally occurring mineral used as a colorant, pearlescent pigment, and texture enhancer to add shimmer and luminosity to cosmetic products.

opacifiercoloranttexture-enhancer
Adds luminosity and radianceImproves light-reflecting propertiesEnhances texture