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 60 of 95

Solvent / vehicle
PEG-6

A short-chain polyethylene glycol (MW ~300 Da) used primarily as a solvent and humectant. Increases water-binding capacity and improves the texture and feel of toners and essences.

solventhumectantemollient
Solubilises actives and fragrance componentsLightweight moisture retention
+ PEG-32+ Glycerin
Surfactant
PEG-6 Caprylic/Capric Glycerides

A PEGylated glyceride emulsifier derived from coconut caprylic/capric fatty acids, used to solubilize and emulsify oils in water-based cosmetic systems.

emulsifiersolubilizer
Solubilizes oils into water-based formulasGentle, mild emulsification
Surfactant
PEG-6 Hydrogenated Castor Oil

A low-ethoxylation hydrogenated castor oil (6 EO units) used as a mild nonionic emulsifier and solubilizer in lotions and toners.

emulsifiersolubilizer
Solubilizes oils in water-based formulasHelps stabilize emulsions
Surfactant
PEG-60 Almond Glycerides

A PEGylated almond glyceride used as a mild nonionic emulsifier and solubilizer, popular in cleansing balms and rinse-off products.

emulsifiersolubilizer
Solubilizes oils and actives into water-based formulasStabilizes emulsionsMild on skin
Emollient
PEG-60 Glyceryl Isostearate
PEG-60 GLYCERYL ISOSTEARATE

A polyethylene glycol ester of glyceryl isostearate used as an emulsifier and solubiliser in Japanese cosmetics. Provides good skin feel and is tolerant of high electrolyte concentrations.

emulsifiersolubiliserskin-conditioning
Creates smooth, silky O/W emulsionsSolubilises oils and fragrances in water-based formulas
+ Dimethicone+ Squalane+ PEG-10 Dimethicone
Surfactant
PEG-60 Hydrogenated Castor Oil

A polyethoxylated hydrogenated castor oil used as a nonionic emulsifier and solubilizer for oils and fragrance compounds in cosmetics.

emulsifiersolubilizer
Solubilizes oils, fragrances, and actives into water-based formulasGentle and well-tolerated
PEG derivatives may contain trace 1,4-dioxane in poorly refined materials
Emollient
PEG-60 Hydrogenated Castor Oil PCA Isostearate
PEG-60 HYDROGENATED CASTOR OIL PCA ISOSTEARATE

A complex ester combining PEG-60 hydrogenated castor oil with pyroglutamic acid (PCA) isostearate. Provides gentle emulsification and skin-conditioning benefits. Used in Minon's sensitive-skin sheet masks.

emulsifierskin-conditioning
Gentle emulsifier with skin-conditioning propertiesUsed in sensitive-skin formulations
+ Hydrogenated Lecithin+ Glycerin
Other
PEG-6000

A high-molecular-weight polyethylene glycol (MW ~6000 Da, ~136 EO units). Used as a thickener and binder in cosmetics.

viscosity-increasingbinder
Thickens and stabilizes formulations
+ Glycerin+ Carbomer
Emollient
PEG-7 Dimethicone

A dimethicone copolymer with 7 polyethylene glycol (PEG) side chains that confer water solubility. Functions as an O/W emulsifier and skin conditioner, combining silicone's signature smoothness with aqueous compatibility. Commonly used in watery creams, gel moisturizers, and lightweight foundations. Distinct from PEG-10 Dimethicone (10 PEG units, more water-soluble) and PEG-12 Dimethicone.

emulsifyingskin-conditioningemollient
Water-soluble silicone copolymer that emulsifies oils into water-based systems while imparting a smooth, non-greasy skin feelLow PEG chain count (7 EO units) gives it moderate hydrophilicity — suitable for water-light gels and watery creamsContributes a characteristic silky-soft after-feel without the heaviness of high-molecular-weight silicones
+ Dimethicone+ Cyclopentasiloxane+ Glycerin
Surfactant
PEG-7 Glyceryl Cocoate

A PEGylated glyceryl cocoate derived from coconut oil used as a gentle nonionic surfactant and emulsifier in facial washes and masks.

emulsifiersolubilizercleansing
Mild coconut-derived emulsifierHelps rinse cleanlySuitable for sensitive skin cleansers
Emollient
PEG-7 Glyceryl Isostearate
PEG-7 GLYCERYL ISOSTEARATE

A PEG-7 ester of glyceryl isostearate. Functions as an emulsifier and skin conditioner, particularly in water-in-oil emulsions like Elixir's brightening emulsions.

emulsifieremollientsolubilizer
Gentle emulsifier in W/O formulationsSkin-conditioning
+ Glycerin+ Cetyl Ethylhexanoate
Surfactant
PEG-7 Trimethylolpropane Coconut Ether

A PEG derivative of coconut alcohol and trimethylolpropane that functions as an emulsifier, surfactant, and emollient in cosmetic formulations.

emulsifiersurfactantemollientsolvent
Emollient properties soften and smooth skinForms non-greasy layer that reduces water lossAdds re-fatting feel in cleansers
PEG compound - potential contamination concerns in manufacturingMay cause mild irritation in very sensitive skin
Humectant
PEG-75

A medium-chain polyethylene glycol used as a humectant and solvent that helps retain moisture and improve formula texture.

humectantsolventmoisturizing
Attracts and retains moistureImproves product spreadability and skin feel
Emollient
PEG-75 Meadowfoam Oil

A PEGylated meadowfoam seed oil (Limnanthes alba) used as a lightweight emollient and emulsifier that imparts a silky skin feel.

emollientemulsifierskin-conditioning
Conditions and softens skinHelps emulsify meadowfoam oil into water-based formulas
Humectant
PEG-8

A short-chain polyethylene glycol used as a humectant and solvent to hydrate skin and improve the feel and spreadability of formulas.

humectantsolvent
Attracts and retains moistureImproves product spreadability
Surfactant
PEG-8 Beeswax

A polyethylene glycol derivative of beeswax used as a mild nonionic emulsifier and conditioning emollient in cleansing balms and creams.

emulsifieremollient
Emulsifies oils in water-based formulasSoftens and conditions skin
Animal-derived — not vegan
Surfactant
PEG-8 Diisostearate
PEG-8 DIISOSTEARATE

Shorter-chain PEG ester emulsifier paired with PEG-12 Diisostearate in cleansing oils to achieve clean rinse-off with minimal stripping.

emulsifiersolubilizer
Disperses oils in water for easy rinsingMilder than traditional surfactants
PEG-derived; low penetration concern at cosmetic concentrations
+ PEG-12 Diisostearate
Surfactant
PEG-8 Glyceryl Isostearate

A PEG-8 ester of glyceryl isostearate used as a mild nonionic emulsifier and solubilizer in cleansing oils and rinse-off products.

emulsifiersolubilizer
Emulsifies oils in aqueous formulasGentle solubilizer in cleansing products
Surfactant
PEG-8 Isostearate

PEG-8 Isostearate is a polyethylene glycol (8 EO units) ester of isostearic acid. It is a lipophilic surfactant used as a co-emulsifier and solubilizer in cleansing oil and balm formulations. The shorter PEG chain (8 units vs 10 or 20) makes it more hydrophobic than longer-chain analogues, contributing more to the oil-phase stabilization than to water rinseability.

emulsifyingsolubilizingskin-conditioning
Short-chain PEG ester of isostearic acid with a lower HLB value than PEG-10/PEG-20 analogues — functions as a lipophilic co-emulsifier in water-in-oil or oil-in-water cleansing formulationsContributes to the smooth, skin-conditioning after-feel of cleansing balms by maintaining a light emollient film before rinsingIsostearic acid's branched chain provides good oxidative stability compared to straight-chain fatty acid esters
Ethoxylated ingredient — trace 1,4-dioxane risk at manufacturing; cosmetic-grade meets regulatory limits
+ PEG-10 Isostearate+ PEG-20 Glyceryl Triisostearate+ Cetyl Ethylhexanoate
Surfactant
PEG-8 Laurate

A PEG-8 ester of lauric acid used as a mild nonionic emulsifier to stabilize oil-in-water emulsions in sunscreens and moisturizers.

emulsifiersurfactant
Stabilizes oil-in-water emulsionsImproves formula texture and spreadability
PEG compounds may contain trace 1,4-dioxane impurities; well-managed in modern manufacturing
Surfactant
PEG-8 Stearate

A PEG-8 ester of stearic acid used as a mild nonionic emulsifier to stabilize oil-in-water emulsions in face creams and lotions.

emulsifiersurfactant
Stabilizes oil-in-water emulsions in creams and moisturizersImproves spreadability
PEG compounds may contain trace 1,4-dioxane impurities; well-managed in modern manufacturing
Other
PEG-9 Dimethicone
PEG-9 DIMETHICONE

A dimethicone functionalized with PEG-9 groups. A silicone surfactant that emulsifies water-in-silicone systems. Used in Elixir Spot Clear Serum and Kiku-Masamune sake emulsion for silky texture.

emulsifiersurfactant
Silicone-based emulsifier — gives silky skin feelWater-in-silicone emulsification
+ Dimethicone+ Cyclopentasiloxane
Emollient
PEG-9 Polydimethylsiloxyethyl Dimethicone
PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE

A silicone-PEG copolymer emulsifier used in BB creams and sunscreens to create stable, water-resistant silicone-in-water emulsions.

emulsifierskin-conditioning
Creates stable silicone-in-water emulsionsSilky, non-greasy skin feel
PEG-based; trace 1,4-dioxane possible unless vacuum-stripped
+ Dimethicone+ Titanium Dioxide
Humectant
PEG-90

A high-molecular-weight polyethylene glycol (~90 ethylene oxide units, ~4000 Da) used as a humectant and mild thickener in skincare formulas.

humectantsolventthickener
Attracts and retains moistureImproves formula consistency