Ingredient review
Sorbitol/Sebacic Acid Copolymer Behenate
INCI: SORBITOL/SEBACIC ACID COPOLYMER BEHENATE
A gentle film-forming ingredient that helps products stay put longer, especially in water-resistant formulas.
In plain English
This ingredient is a polymer, which is a large molecule made by linking smaller units together. It forms a thin, flexible film on your skin or hair that helps other ingredients stay in place and resist being washed away by water or sweat. Think of it like a very light, invisible shield that helps your sunscreen or lotion last longer.
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
Sorbitol/Sebacic Acid Copolymer Behenate 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 Sorbitol/Sebacic Acid Copolymer Behenate.
- 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 polymer created by chemically linking sorbitol (a sugar alcohol), sebacic acid (a naturally occurring dicarboxylic acid), and behenic acid (a long-chain fatty acid from plant oils). The result is a waxy, film-forming substance.
How it works
When applied, the copolymer dries to form a continuous, flexible film on the skin or hair surface. This film acts as a physical barrier that slows water loss and helps other ingredients (like UV filters or moisturizers) adhere better and resist wash-off.
Pros
Boosts water resistance
Helps sunscreens and lotions stay effective longer during swimming or sweating, so you don't have to reapply as often.
Lightweight feel
Unlike heavy waxes or oils, this polymer forms a thin, flexible film that doesn't feel greasy or sticky on the skin.
Cons and cautions
Not hydrating
It forms a barrier but doesn't add moisture. If your skin is very dry, you'll still need a good moisturizer underneath.
Potential tackiness
In formulas with higher concentrations, it can leave a slightly sticky or tight feeling, especially in humid weather.
Best for
- Anyone wanting longer-lasting sunscreen or makeup
- People with normal to oily skin who prefer a matte, film-like finish
Use caution if
- Those with very dry or compromised skin barriers who may prefer richer, occlusive ingredients like petrolatum
Usage tips
Safety summary
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in regulatory or dermatological literature.
Research notes
Limited peer-reviewed studies specific to this copolymer, but it is chemically similar to other well-studied film-forming polymers used in sunscreens and hair products. Safety data from ingredient reviews (e.g., CIR) support its use.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No known restrictions at typical use levels.
- Common uses
- Sunscreens, Water-resistant lotions, Hair styling products, Color cosmetics
- Environmental note
- The raw materials are plant-derived, but the polymer itself is not biodegradable. Its environmental impact is considered low due to small usage amounts.
Good to know
- Often used in 'water-resistant' sunscreens to meet FDA testing standards.
- Derived from renewable plant sources (sorbitol from corn, sebacic acid from castor oil, behenic acid from rapeseed oil).
Common questions
What is Sorbitol/Sebacic Acid Copolymer Behenate in beauty products?
This ingredient is a polymer, which is a large molecule made by linking smaller units together. It forms a thin, flexible film on your skin or hair that helps other ingredients stay in place and resist being washed away by water or sweat. Think of it like a very light, invisible shield that helps your sunscreen or lotion last longer.
What does Sorbitol/Sebacic Acid Copolymer Behenate do in a beauty product?
When applied, the copolymer dries to form a continuous, flexible film on the skin or hair surface. This film acts as a physical barrier that slows water loss and helps other ingredients (like UV filters or moisturizers) adhere better and resist wash-off.
Is Sorbitol/Sebacic Acid Copolymer Behenate safe for most people?
Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in regulatory or dermatological literature.
Who should be careful with Sorbitol/Sebacic Acid Copolymer Behenate?
Those with very dry or compromised skin barriers who may prefer richer, occlusive ingredients like petrolatum
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.