Science
Mechanism of Action
It primarily functions as a film-forming and viscosity-increasing agent. It creates a continuous barrier on the skin to help retain moisture and provides a smooth after-feel, while also stabilizing emulsions.
Research
Clinical Evidence
Low confidence7%
Key findings
- 01 A Human Repeat Insult Patch Test on 50 subjects showed only transient irritation (mostly very slight erythema) at 15% concentration, with no evidence of sensitization.
- 02 A 5% aqueous solution of a similar copolymer was found to be non-irritating in human dermal irritation assays.
- 03 7% is reported as the maximum safe concentration for leave-on formulations based on industry safety data.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Highly stable in acidic conditions (pH 3-6). Susceptibility to base-catalyzed hydrolysis at pH 9 and above can lead to a loss of thickening properties.
Conflicts
- High concentrations of electrolytes
- Strong alkaline environments (pH > 9)
- Chaotropic salts
Safety
Safety Profile
Safety is contingent on the residual acrylamide monomer not exceeding 5 ppm in final formulations. Its large molecular weight typically precludes dermal absorption.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable film-forming and thickening agent, enhancing product texture and moisture retention across all skin types with a low risk of irritation.
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References
Sources