Science
Mechanism of Action
Upon neutralization to a pH of 4.0 or higher, the polymer chains uncoil and swell due to electrostatic repulsion. Hydrophobic 'Steareth-20' segments then associate, forming a robust 3D network that thickens the aqueous phase and stabilizes complex systems.
Research
Clinical Evidence
High confidence0.75%
Key findings
- 01 HRIPT (Human Repeat Insult Patch Test) on similar acrylates crosspolymers confirmed non-irritating and non-sensitizing at 2.0-2.6% concentration.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Supplied as an acidic, low-viscosity emulsion, it thickens instantaneously upon pH neutralization. It demonstrates excellent tolerance to salts and electrolytes compared to traditional carbomers.
Conflicts
- Cationic surfactants (may cause precipitation)
- Low pH environments (below 4.0, leading to viscosity loss)
Safety
Safety Profile
The CIR panel confirms this ingredient is safe when formulated to be non-irritating, with commercial versions typically free of benzene.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile rheology modifier is highly valued for its efficacy in thickening and stabilizing formulations across all skin types, demonstrating excellent safety and compatibility.
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References
Sources