Science
Mechanism of Action
The copolymer forms a continuous, cohesive, and flexible film on surfaces, aiding in moisture retention on skin and providing style control for hair. This mechanism supports durable product performance.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 28-day dermal toxicity study in rats (1000 mg/kg bw/d) showed only very slight erythema in two females; NOAEL was 1000 mg/kg bw/d.
- 02 Primary skin irritation assay in rabbits using a 40% ethanolic solution yielded negative results (non-irritating).
- 03 Dermal prenatal development toxicity assay in rats (1000 mg/kg bw/d) found no maternal or fetal toxicity.
Transparency
Dusting Analysis
No specific data on dusting is available for this ingredient.
The Formula
Formulation
Stability
Neutralized with AMP to become water-dispersible, it is stable under high humidity and temperature conditions. It is often supplied in ethanolic or aqueous-ethanolic solutions.
Conflicts
- Nitrosating systems
- Nitrite-containing ingredients
- Strongly acidic environments (may destabilize the neutralized salt)
Safety
Safety Profile
The 7% max concentration refers to broader acrylates/acrylamide copolymers in leave-on products and is subject to EU Annex III restrictions on nitrosamine content (max 50 µg/kg) and purity (>99%).
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile film-former is considered safe for cosmetic use, demonstrating low irritation and broad skin compatibility across various product applications.
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References
Sources