A functional emulsifier that can help blend oils and water, but may be too heavy or irritating for sensitive or acne-prone skin.
Irritation
moderate
Source
semi-synthetic
Beauty ingredient research
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
A functional emulsifier that can help blend oils and water, but may be too heavy or irritating for sensitive or acne-prone skin.
Irritation
moderate
Source
semi-synthetic
A reliable emulsifier that helps create stable, creamy formulas without common irritation.
Irritation
low
Source
synthetic
A gentle, plant-derived emulsifier that helps blend oil and water in cleansers and creams, with a low risk of irritation.
Irritation
low
Source
semi-synthetic
A gentle, jojoba-derived emulsifier that helps mix oil and water without stripping the skin.
Irritation
low
Source
semi-synthetic
A gentle, water-friendly emulsifier that helps blend oil and water in creams and cleansers, but may not suit those with wool allergies.
Irritation
low
Source
semi-synthetic
PEG-40 Methyl Ether is a synthetic surfactant that helps cleanse and emulsify, but may cause mild irritation for sensitive skin types.
Irritation
moderate
Source
synthetic
A mild, olive-derived emulsifier that helps mix oil and water in cleansers and creams, with a low risk of irritation.
Irritation
low
Source
semi-synthetic
A synthetic polymer that helps products spread smoothly and form a light, flexible film on skin, but offers no active skincare benefits.
Irritation
low
Source
synthetic
PEG-40 Ricinoleamide is a gentle emulsifier that helps mix oil and water in cleansers, but it may not suit those avoiding PEG compounds.
Irritation
low
Source
semi-synthetic
A gentle, synthetic emulsifier that helps create stable, creamy formulas without common irritation concerns.
Irritation
low
Source
synthetic
A reliable, low-irritation emulsifier that helps blend oils and water, but may not suit those with lanolin sensitivity.
Irritation
low
Source
semi-synthetic
A reliable emulsifier that keeps formulas stable, but may be too heavy for very oily or acne-prone skin.
Irritation
low
Source
synthetic
A widely used synthetic emulsifier that is generally safe and non-irritating for most skin types.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps blend oil and water, generally well-tolerated but may not suit those avoiding ethoxylated ingredients.
Irritation
low
Source
synthetic
A reliable emulsifier that helps oil and water mix, but may not suit those avoiding ethoxylated ingredients.
Irritation
low
Source
synthetic
A gentle, widely used emulsifier that helps create stable, creamy formulas without common irritation.
Irritation
low
Source
semi-synthetic
A reliable synthetic emulsifier that keeps oil and water mixed in your products, but it may not suit those avoiding ethoxylated ingredients.
Irritation
low
Source
synthetic
A well-tolerated emulsifier that helps create stable, creamy textures while offering mild skin conditioning.
Irritation
low
Source
semi-synthetic
PEG-400 is a widely used synthetic ingredient that helps dissolve other ingredients and improve texture, but its safety depends on purity and molecular weight.
Irritation
low
Source
synthetic
A synthetic film former that helps makeup and sunscreen stay put longer, but may feel tight or heavy on some skin types.
Irritation
low
Source
synthetic
Emulsifier
HYDROGENATED DIMER DILINOLEYL PEG-41/POLY(1,2-BUTANEDIOL)-18 DIMETHYL ETHER
A gentle synthetic polymer that helps stabilize formulas and gives a smooth, non-greasy feel.
Irritation
low
Source
synthetic
A mild, semi-synthetic emulsifier derived from babassu oil that helps blend water and oil in cleansers and creams without stripping the skin.
Irritation
low
Source
semi-synthetic
A gentle, semi-synthetic emollient that helps soften skin and stabilize formulas, but research on its unique mushroom-derived benefits is still limited.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps mix oil and water in cleansers and shampoos, with a low risk of irritation.
Irritation
low
Source
semi-synthetic
Thickener
HYDROGENATED DIMER DILINOLEYL PEG-44/POLY(1,2-BUTANEDIOL)-15 DIMETHYL ETHER
A synthetic polymer that helps create a smooth, non-greasy gel texture in skincare and haircare products, with a low irritation profile.
Irritation
low
Source
synthetic
A gentle, water-soluble emulsifier that helps cleanse without stripping the skin's natural moisture barrier.
Irritation
low
Source
semi-synthetic
Film Former
PEG-444 PENTAERYTHRITYL TETRA(AMIDOGLUTAROYL SUCCINIMIDO ETHYL ETHER)
A specialized synthetic polymer that creates a smooth, flexible film on skin, but its complexity means it's rarely seen in everyday products.
Irritation
low
Source
synthetic
Film Former
PEG-444 PENTAERYTHRITYL TETRA(GLUTAROYLSUCCINIMIDE)
An advanced synthetic polymer that helps active ingredients stick to skin longer, but its complexity means it's rarely used in mainstream products.
Irritation
low
Source
synthetic
A water-friendly form of vitamin E that brings antioxidant protection to lightweight, non-greasy formulas.
Irritation
low
Source
semi-synthetic
A gentle, oil-based emulsifier that helps mix water and oil in formulas, but may feel heavy on very oily skin.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps blend oil and water in skincare products, generally well-tolerated but derived from palm kernel oil, which raises sustainability concerns.
Irritation
low
Source
semi-synthetic
A mild, plant-derived emulsifier that helps water and oil mix in your skincare, with a low risk of irritation or clogged pores.
Irritation
low
Source
semi-synthetic
PEG-45 Stearate is a widely used emulsifier that helps create stable, creamy textures, but it may contain trace impurities from its manufacturing process.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps mix oil and water in creams and cleansers, but may not suit those avoiding PEG compounds.
Irritation
low
Source
synthetic
A PEG-modified form of alpha-lipoic acid that offers antioxidant benefits with improved water solubility and stability, but its effectiveness depends on formulation and concentration.
Irritation
low
Source
semi-synthetic
A synthetic polymer that helps products stay put, resist water, and feel smooth, but offers no active skincare benefit.
Irritation
low
Source
synthetic
PEG-450 is a safe, widely used synthetic thickener and humectant that helps stabilize formulas and improve texture, but it may be contaminated with impurities in poorly manufactured products.
Irritation
low
Source
synthetic
A synthetic polymer that helps ingredients stick to skin and form a light, flexible film, but its large size means it stays on the surface and offers no deep hydration.
Irritation
low
Source
synthetic
PEG-45M is a safe, synthetic thickener that gives products a smooth, silky feel without clogging pores.
Irritation
low
Source
synthetic
A gentle, semi-synthetic emollient that helps moisturize and stabilize formulas without feeling greasy.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps blend oil and water in cleansers, but may be drying for some skin types.
Irritation
low
Source
semi-synthetic
PEG-5 Cocamide is a mild cleansing agent that helps foaming products work better, but it may be slightly drying for very sensitive skin.
Irritation
moderate
Source
semi-synthetic
An effective cleansing agent that helps remove dirt and oil, but may cause irritation for sensitive skin types.
Irritation
moderate
Source
semi-synthetic
PEG-5 Cocoate helps mix oil and water in cleansers, but may be slightly drying or irritating for very sensitive skin.
Irritation
moderate
Source
synthetic
A synthetic ingredient that helps products feel smooth and stay fresh, but may cause irritation for sensitive skin.
Irritation
moderate
Source
synthetic
A synthetic emulsifier that helps mix oil and water, but may be slightly drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
A gentle synthetic conditioner that helps detangle and soften hair without heavy buildup.
Irritation
low
Source
synthetic
A gentle synthetic emollient that helps products feel silky without heavy greasiness, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps create stable, creamy textures, but may be too heavy for very oily or acne-prone skin.
Irritation
low
Source
synthetic
A gentle emulsifier that helps blend oils and water, making cleansers and creams feel smooth without stripping the skin.
Irritation
low
Source
semi-synthetic
A safe, effective emulsifier that helps your products feel smooth and stable, but it's synthetic and may not suit those avoiding PEGs.
Irritation
low
Source
synthetic
A gentle emulsifier that helps create stable, creamy textures without heavy irritation or clogging.
Irritation
low
Source
semi-synthetic
A gentle synthetic emulsifier that helps create stable, creamy formulas without common irritation.
Irritation
low
Source
synthetic
A gentle synthetic emulsifier that helps mix water and oil in your skincare, but may not suit those avoiding PEG compounds.
Irritation
low
Source
synthetic
A reliable synthetic emulsifier that helps creams and lotions feel smooth and stable, but it offers no direct skin benefit.
Irritation
low
Source
synthetic
A reliable, low-irritation emulsifier that helps mix oil and water in cleansers and creams, but may not suit those avoiding PEG compounds.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps mix oil and water in cleansers and creams, generally safe for most skin types.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps mix water and oil in your products, but it's processed with PEGs, which some people prefer to avoid.
Irritation
low
Source
semi-synthetic
A gentle, semi-synthetic emulsifier derived from corn glycerides that helps stabilize creams and lotions without common irritation.
Irritation
low
Source
semi-synthetic
A gentle, modified lanolin that softens skin and helps blend water and oil, but may clog pores in acne-prone individuals.
Irritation
low
Source
semi-synthetic