The library

Ingredient library

Every ingredient SkinAtlas knows about — all 2402 of them. What each one does, what it works well with, and what to watch for.

All 2402 ingredients — page 65 of 101

Other
PPG-12/SMDI Copolymer

A copolymer of polypropylene glycol and SMDI (4,4'-methylenediphenyl diisocyanate) used as a film-former and emollient that imparts a silky, velvety skin feel.

film-formeremollientthickener
Leaves a smooth, silky after-feel on skinImproves spreadability and texture
Surfactant
PPG-13-Decyltetradeceth-24

A polymeric nonionic surfactant combining a polypropylene glycol backbone with a branched long-chain ethoxylate, used as an emulsifier and solubilizer in premium aqueous skin-care formulas.

emulsifiersolubilizer
Helps stabilize oil-in-water emulsionsCan solubilize fragrance or oil components in watery formulas
Emollient
PPG-15 Stearyl Ether
PPG-15 STEARYL ETHER

A polypropylene glycol ether of stearyl alcohol; functions as a lightweight emollient and skin-conditioning agent commonly used in cleansing oils.

emollientskin-conditioning
Lightweight, non-greasy skin feelEnhances spreadability of cleansing oils
Humectant
PPG-17

A polypropylene glycol polymer (17-unit chain) used as a humectant and co-solvent in cosmetics. Lighter and less viscous than glycerin; often combined with it in Japanese toners.

humectantsolventskin-conditioning
Lightweight humectantImproves texture without heaviness
+ Glycerin+ Butylene Glycol
Other
PPG-2 Arginine

A condensation product of propylene glycol and the amino acid arginine. Used as a mild skin conditioner in cleansing and care products.

skin-conditioningmoisturizing
Propylene glycol ester of arginine providing gentle moisture-conditioning and skin-softeningAmino acid derivative with mild cationic character that improves skin surface feel
Humectant
PPG-20 Methyl Glucose
PPG-20 METHYL GLUCOSE

A propylene glycol ether of methyl glucose with approximately 20 propylene oxide units. Used as a humectant and skin-conditioning agent in toners and essences.

humectantskin-conditioning
MoisturizingImproves spreadability
+ Glycerin+ Hyaluronic Acid
Surfactant
PPG-26-Buteth-26

A nonionic polypropylene glycol/butyl ether copolymeric surfactant used as a solubilizer and emulsifier in toners and facial preparations.

solubilizeremulsifier
Helps solubilize fragrance, oils, and actives in aqueous formulasCompatible with a broad range of cosmetic ingredients
Emollient
PPG-3 Dipivalate
PPG-3 DIPIVALATE

A diester of tripropylene glycol (PPG-3) and pivalic acid. A lightweight, non-greasy emollient used in skincare to improve spreadability and provide a dry, silky skin feel. Common in Shiseido premium formulations.

emollientskin-conditioning
Lightweight, non-greasy emollientImproves spreadability and skin feel
+ Dimethicone+ Glycerin
Emollient
PPG-3 Myristyl Ether

A polypropylene glycol ether of myristyl alcohol used as a lightweight emollient and carrier solvent that imparts a silky skin feel and improves the spreading and dispersibility of actives in serums and sunscreens.

emollientsolvent
Lightweight, silky, non-greasy emollient feelImproves spreadability and reduces tackinessActs as a carrier solvent for UV filters and actives
Other
PPG-4-Ceteth-20
PPG-4-CETETH-20

A complex polyol ether combining PPG-4 and ceteth-20 groups. Used as a non-ionic emulsifier and surfactant in skincare formulations.

emulsifiersurfactant
Non-ionic emulsifierGood skin compatibility
+ Glycerin+ Cetearyl Alcohol
Surfactant
PPG-5-Laureth-5

PPG-5-Laureth-5 is a non-ionic surfactant made by sequential propoxylation (5 PO units) and ethoxylation (5 EO units) of lauryl alcohol. The resulting molecule has a mixed hydrophilic/lipophilic character suitable for use as a mild solubilizer and co-emulsifier in water-based skincare. Used in toners and serum-type products to solubilize fragrance compounds and provide a smooth, conditioned skin feel.

solubilizingemulsifyingskin-conditioning
A mixed PEG/PPG ether of lauryl alcohol (5 propylene oxide units + 5 ethylene oxide units) that functions as a mild solubilizer and emulsion stabilizer in aqueous formulationsThe combination of hydrophilic (ethylene oxide) and moderately hydrophobic (propylene oxide) segments makes it useful for solubilizing fragrance ingredients and other slightly lipophilic actives in water-based toners and serumsContributes a skin-conditioning, silky feel similar to other PPG/PEG ether surfactants at cosmetic use concentrations
PEG/PPG ethers carry a theoretical trace 1,4-dioxane risk from ethoxylation; cosmetic-grade material meets regulatory purity limits
+ Glycerin+ Butylene Glycol+ Propanediol
Humectant
PPG-50 Methyl Glucose Ether

A high-propoxylation methyl glucose ether derived from corn glucose and propylene oxide, used as a humectant and mild emollient that provides lasting moisturization without a heavy or tacky feel.

humectantemollient
Draws and retains moisture for long-lasting hydrationNon-greasy, lightweight skin feelMild and non-comedogenic — suitable for sensitive skin
Other
PPG-6-Decyltetradeceth-20
PPG-6-DECYLTETRADECETH-20

A polypropylene glycol/polyethylene glycol ether of decyltetradecanol used as an emulsifier and solubiliser in Japanese toners and essences. Enables stable, clear-to-slightly-translucent formulas.

emulsifyingsolubilisingskin-conditioning
Stabilises complex emulsionsImproves penetration of activesElegant skin feel in toners and essences
+ Glycerin+ Butylene Glycol+ Dipropylene Glycol
Surfactant
PPG-6-Decyltetradeceth-30

A mixed polypropylene/polyethylene glycol ether of a branched C24 fatty alcohol used as a nonionic emulsifier and solubilizer in premium serums and emulsions.

emulsifiersolubilizer
Stabilizes oil-in-water emulsionsSolubilizes oils and actives in aqueous formulasCompatible with a wide range of cosmetic ingredients
Surfactant
PPG-8-Ceteth-20

A mixed PEG/PPG ether of cetyl alcohol: 8 units of propylene oxide (PPG) and 20 units of ethylene oxide (PEG) on a C16 cetyl backbone. Functions as an O/W emulsifier in cosmetic formulations. The PPG segment reduces the stringent feel sometimes associated with pure PEG emulsifiers, giving a softer skin feel. Used in cream-mists and milky tonics where a stable yet fluid emulsion is needed.

emulsifyingsurfactantskin-conditioning
Effective O/W emulsifier for lightweight cream-mist formats — keeps formulas fluid and sprayablePPG-cetyl ether backbone provides gentle skin conditioning alongside emulsificationLow-irritation profile makes it suitable for barrier-care and sensitive-skin formulas
+ Ceramide NP+ Cholesterol+ Phytosphingosine
Other
PVM/MA Copolymer

A copolymer of methyl vinyl ether and maleic anhydride (trade name Gantrez) used as a film-former, binder, and emulsion stabilizer in skincare and hair care formulas.

film-formerbinderemulsion-stabilizer
Creates a conditioning, protective film on skinStabilizes emulsionsBinds and suspends formula components
Other
PVP

Polyvinylpyrrolidone — a water-soluble polymer widely used in cosmetics and pharmaceuticals. Used as a film-former, binder, and thickener. Provides a smooth skin feel.

film-formerbinderviscosity-increasing
Film-forming and bindingImproves product adhesionLong history of safe cosmetic use
+ Glycerin+ Carbomer
Humectant
Padina Pavonica Thallus Extract

A brown-algae extract used to support hydration and a plumped, conditioned feel.

humectantsoothing
HydrationConditioning
Soothing
Paeonia Albiflora Root Extract

An extract from the root of Paeonia albiflora (white peony / Bai Shao), a traditional East Asian botanical distinct from tree peony, used for its soothing, brightening, and antioxidant effects.

soothingbrighteningantioxidant
Soothes and calms sensitive skinBrightening support via paeoniflorin compoundsAntioxidant protection
Soothing
Paeonia Lactiflora Extract

Extract from Paeonia lactiflora (Chinese peony / bai shao), a key ingredient in traditional Korean and Chinese herbal medicine; paeoniflorin content provides documented anti-inflammatory and skin-calming activity.

soothingantioxidantbrightening
Contains paeoniflorin, a proven anti-inflammatory glycoside that calms reactive skinAntioxidant polyphenols contribute to brightening and skin tone
+ Centella Asiatica Extract
Soothing
Paeonia Lactiflora Root Extract

An extract from the root of Paeonia lactiflora (herbaceous peony / Bai Shao), a distinct species from tree peony (P. suffruticosa) and white peony (P. albiflora), used in traditional Chinese and Korean medicine for its soothing, anti-inflammatory, and mild brightening properties.

soothingbrighteningantioxidant
calms redness and irritationbrightens uneven skin toneprovides antioxidant protection
Soothing
Paeonia Suffruticosa Root Extract

A peony root extract used to calm skin and support a brighter, more even tone.

soothingbrighteningantioxidant
Soothes skinBrightening supportAntioxidant protection
Antioxidant
Palmaria Palmata Extract

An extract of Palmaria palmata (dulse), a red algae, rich in antioxidant polyphenols and minerals used to condition skin and counter oxidative stress.

antioxidantskin-conditioning
Rich in antioxidant polyphenols and minerals from red algaeSupports skin-conditioning and helps counter oxidative stressUsed in eye-area formulas for a soothing, cooling effect
Soothing
Palmitamide MEA

Palmitamide MEA (palmitoylethanolamide) is a fatty acid amide that acts on cannabinoid receptor pathways to exert anti-inflammatory and soothing effects, making it suitable for sensitive skin formulations.

anti-inflammatorysoothingfoam-booster
Reduces skin inflammation via endocannabinoid-like pathwaysSoothes sensitive and irritated skinSupports formulation stability as a foam booster