Ingredient review
Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer
INCI: POLYGLYCERYL-3 STEARATE/ISOSTEARATE/DIMER DILINOLEATE CROSSPOLYMER
A gentle, plant-based emulsifier that creates stable, lightweight textures without common irritation.
In plain English
This ingredient is a helper that mixes oil and water together so your lotion or cream stays smooth and doesn't separate. It's made from glycerin and fatty acids from plants, and it's designed to be very gentle on skin. Think of it as a tiny bridge that holds the watery and oily parts of a product together, giving you a nice, even texture.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic emulsifier created by linking polyglycerin (derived from glycerin) with stearic, isostearic, and dimer dilinoleic acids (from plant oils). The crosspolymer structure makes it especially stable and mild.
How it works
It reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. Its crosspolymer form also adds a light, silky feel to products and can help thicken formulas without greasiness.
Pros
Gentle on sensitive skin
Unlike some traditional emulsifiers, this one has a very low irritation risk, making it a good choice for products designed for sensitive or eczema-prone skin.
Lightweight texture
It helps create creams and lotions that feel silky and absorb quickly without leaving a heavy or sticky residue, which is great for daytime use or oily skin.
Cons and cautions
Limited to emulsified formulas
This ingredient only works in products that need to mix oil and water. It won't add any benefit to simple serums or oils that don't require emulsification.
May not suit very acidic products
If a formula has a very low pH (like some exfoliating treatments), this emulsifier might not perform as well, potentially leading to separation.
Best for
- Anyone with sensitive or reactive skin
- People who prefer lightweight, non-greasy moisturizers
Use caution if
- Those seeking completely water-only or oil-only products
Usage tips
Safety summary
Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer is considered very safe for use in cosmetics. It has a low irritation and comedogenic (pore-clogging) risk, and is well-tolerated even by sensitive skin. No significant safety concerns have been reported in scientific literature.
Research notes
While not extensively studied on its own, the ingredient's components (polyglycerin and fatty acids) are well-known and safe. Its crosspolymer structure is designed to minimize skin penetration, reducing any potential for irritation. Industry safety panels have reviewed similar polyglyceryl esters and found them safe for cosmetic use.
Common label clues
- Typical concentration
- 1% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU and FDA, with no known restrictions.
- Common uses
- Moisturizers, Sunscreens, Serums, Creams
- Environmental note
- Derived from renewable plant sources and considered biodegradable, making it a more eco-friendly option compared to some petroleum-based emulsifiers.
Good to know
- It is often used in 'natural' or 'green' beauty products because it is derived from plant sources.
- The 'crosspolymer' part means it has a larger molecular structure, which helps it stay on the skin's surface without being absorbed deeply.
Common questions
What is Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer in beauty products?
This ingredient is a helper that mixes oil and water together so your lotion or cream stays smooth and doesn't separate. It's made from glycerin and fatty acids from plants, and it's designed to be very gentle on skin. Think of it as a tiny bridge that holds the watery and oily parts of a product together, giving you a nice, even texture.
What does Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer do in a beauty product?
It reduces the surface tension between oil and water, allowing them to mix into a stable emulsion. Its crosspolymer form also adds a light, silky feel to products and can help thicken formulas without greasiness.
Is Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer safe for most people?
Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer is considered very safe for use in cosmetics. It has a low irritation and comedogenic (pore-clogging) risk, and is well-tolerated even by sensitive skin. No significant safety concerns have been reported in scientific literature.
Who should be careful with Polyglyceryl-3 Stearate/Isostearate/Dimer Dilinoleate Crosspolymer?
Those seeking completely water-only or oil-only products
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.