Science
Mechanism of Action
It operates by forming a uniform, continuous film upon application, effectively coating the skin, hair, or nails. This film provides structural integrity, enhances product aesthetics, and can contribute to a smoother feel or improved hold on the targeted surface.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This polymer exhibits robust stability within a pH range of 3.0 to 9.0. Elevated pH levels can lead to a gradual increase in viscosity. However, highly acidic conditions (pH ≤ 2.5) should be avoided as they can induce imidization, diminishing its water solubility. It is also vulnerable to cross-linking when exposed to aldehydes like formaldehyde or certain high metals (e.g., aluminum, chromium, zirconium), and can degrade from mechanical stress or oxygen.
Conflicts
- Nitrosating systems (potential nitrosamine formation in related copolymers)
- Formaldehyde and high metals (aluminum, chromium, zirconium) leading to cross-linking
- Strongly acidic environments (pH ≤ 2.5) due to reduced solubility
Safety
Safety Profile
Regulatory bodies, including the EU's SCCS and the CIR Expert Panel, deem this acrylamide/acrylate copolymer safe for cosmetic use when adhering to specific restrictions. Key among these is maintaining the residual acrylamide monomer concentration below 5 ppm. The polymer itself is considered safe in concentrations up to 7% in leave-on formulations, aligning with approvals for related polymers in various applications, including food-related uses by the FDA, all under stringent purity standards.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile polymer is a valuable ingredient for enhancing product texture, stability, and creating a beneficial film on the skin or hair, provided it meets strict purity standards for acrylamide monomer.
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