Ingredient review
Glyceryl Diricinoleate/IPDI Copolymer
INCI: GLYCERYL DIRICINOLEATE/IPDI COPOLYMER
A synthetic film-former that helps makeup and sunscreen stay put without feeling heavy or sticky.
In plain English
This ingredient is a type of plastic-like polymer that spreads into a thin, flexible film on your skin or hair. It helps other ingredients—like pigments in foundation or UV filters in sunscreen—stay in place longer, even when you sweat or get wet. Unlike some older film-formers, it tends to feel lighter and less tacky.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
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
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Glyceryl Diricinoleate/IPDI Copolymer 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 Glyceryl Diricinoleate/IPDI Copolymer.
- 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 synthetic copolymer made by reacting glyceryl diricinoleate (a castor oil derivative) with IPDI (isophorone diisocyanate). It is designed to form a flexible, water-resistant film on surfaces.
How it works
When applied, the copolymer molecules link together as the solvent evaporates, creating a continuous, breathable film. This film physically locks in other ingredients, reduces transfer, and improves water resistance without completely sealing the skin.
Pros
Long-lasting wear
Helps makeup and sunscreen stay put for hours, reducing the need for touch-ups.
Lightweight feel
Forms a flexible film that doesn't feel heavy, tight, or flaky on the skin.
Cons and cautions
Synthetic origin
Made from petrochemical-derived IPDI, which may not align with natural or minimalist skincare preferences.
Removal may require oil
The water-resistant film can be stubborn; you may need an oil-based cleanser or micellar water to fully remove it.
Best for
- Anyone wanting long-wearing foundation or lipstick
- People who need water-resistant sunscreen for outdoor activities
Use caution if
- Those who prefer exclusively natural or plant-based ingredients
- Individuals with very sensitive skin who react to many synthetic polymers (rare)
Usage tips
Safety summary
Glyceryl Diricinoleate/IPDI Copolymer is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. The IPDI component is fully reacted and not free in the final product, minimizing toxicity concerns.
Research notes
Safety assessments by industry panels and regulatory bodies support its use as a film-former. No significant human or environmental toxicity has been reported in peer-reviewed literature at cosmetic use levels.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No specific concentration restrictions are common.
- Common uses
- Long-wear makeup, Water-resistant sunscreens, Styling products, Lip products
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in low concentrations and is not known to bioaccumulate.
Good to know
- This polymer is often used in 'transfer-proof' or '24-hour' makeup formulas.
- It is considered non-comedogenic in typical concentrations, but patch test if you are prone to breakouts.
Common questions
What is Glyceryl Diricinoleate/IPDI Copolymer in beauty products?
This ingredient is a type of plastic-like polymer that spreads into a thin, flexible film on your skin or hair. It helps other ingredients—like pigments in foundation or UV filters in sunscreen—stay in place longer, even when you sweat or get wet. Unlike some older film-formers, it tends to feel lighter and less tacky.
What does Glyceryl Diricinoleate/IPDI Copolymer do in a beauty product?
When applied, the copolymer molecules link together as the solvent evaporates, creating a continuous, breathable film. This film physically locks in other ingredients, reduces transfer, and improves water resistance without completely sealing the skin.
Is Glyceryl Diricinoleate/IPDI Copolymer safe for most people?
Glyceryl Diricinoleate/IPDI Copolymer is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. The IPDI component is fully reacted and not free in the final product, minimizing toxicity concerns.
Who should be careful with Glyceryl Diricinoleate/IPDI Copolymer?
Those who prefer exclusively natural or plant-based ingredients Individuals with very sensitive skin who react to many synthetic polymers (rare)
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.