Ingredient review
Stearyl/Octyldodecyl Citrate Crosspolymer
INCI: STEARYL/OCTYLDODECYL CITRATE CROSSPOLYMER
A gentle, silicone-like polymer that improves product feel and wear without the environmental concerns of silicones.
In plain English
This ingredient is a type of polymer — a long chain of repeating molecules — made from fatty alcohols and citric acid. It forms a thin, flexible film on your skin that feels smooth and velvety, similar to silicones but derived from plant-based sources. It helps other ingredients spread more evenly and can make makeup or sunscreen last longer without feeling heavy or greasy.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Stearyl/Octyldodecyl Citrate 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 Stearyl/Octyldodecyl Citrate 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 crosspolymer created by combining stearyl alcohol, octyldodecanol, and citric acid. The 'crosspolymer' structure means the molecules are linked together in a network, which gives it film-forming and texture-enhancing properties.
How it works
When applied, the crosspolymer dries down to form a very thin, breathable film on the skin's surface. This film smooths out uneven texture, helps subsequent layers (like foundation or sunscreen) spread more uniformly, and can improve the water resistance of the product. It also imparts a soft, powdery feel that reduces tackiness.
Pros
Silicone-free smoothness
Provides the silky, blurring effect of silicones but is derived from plant-based fatty acids and citric acid, making it a popular choice for silicone-free formulations.
Improves product performance
Helps sunscreen and makeup spread evenly and last longer on the skin, reducing the need for reapplication and improving overall user experience.
Cons and cautions
Potential for slight dryness
Because it forms a film, it can sometimes feel a bit drying or tight on very dry or compromised skin, especially if used in high amounts without complementary moisturizers.
Limited long-term data
While generally considered safe, there is less published research on the long-term skin effects of crosspolymers compared to more traditional ingredients like silicones or oils.
Best for
- Anyone looking for a silicone-free alternative in their skincare or makeup
- People with oily or combination skin who want a matte, smooth finish
Use caution if
- Those with extremely dry or dehydrated skin may prefer more hydrating film-formers like glycerin or hyaluronic acid
Usage tips
Safety summary
Stearyl/Octyldodecyl Citrate Crosspolymer is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. However, as with any film-former, those with very dry or sensitive skin should monitor for any tightness or discomfort.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that similar citrate crosspolymers are safe in cosmetic formulations. Specific studies on this exact ingredient are limited, but its components are well-studied and considered low-risk.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No specific concentration restrictions are listed by the Cosmetic Ingredient Review (CIR) panel.
- Common uses
- Moisturizers, Sunscreens, Primers, Foundations, Lip products
- Environmental note
- Derived from plant-based fatty acids and citric acid, this crosspolymer is biodegradable and does not accumulate in the environment like some silicones.
Good to know
- This ingredient is often used in 'silicone-free' primers and sunscreens to achieve a similar texture without the environmental persistence of silicones.
- It is biodegradable and considered more eco-friendly than many traditional silicones.
Common questions
What is Stearyl/Octyldodecyl Citrate Crosspolymer in beauty products?
This ingredient is a type of polymer — a long chain of repeating molecules — made from fatty alcohols and citric acid. It forms a thin, flexible film on your skin that feels smooth and velvety, similar to silicones but derived from plant-based sources. It helps other ingredients spread more evenly and can make makeup or sunscreen last longer without feeling heavy or greasy.
What does Stearyl/Octyldodecyl Citrate Crosspolymer do in a beauty product?
When applied, the crosspolymer dries down to form a very thin, breathable film on the skin's surface. This film smooths out uneven texture, helps subsequent layers (like foundation or sunscreen) spread more uniformly, and can improve the water resistance of the product. It also imparts a soft, powdery feel that reduces tackiness.
Is Stearyl/Octyldodecyl Citrate Crosspolymer safe for most people?
Stearyl/Octyldodecyl Citrate Crosspolymer is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. However, as with any film-former, those with very dry or sensitive skin should monitor for any tightness or discomfort.
Who should be careful with Stearyl/Octyldodecyl Citrate Crosspolymer?
Those with extremely dry or dehydrated skin may prefer more hydrating film-formers like glycerin or hyaluronic acid
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.