Science
Mechanism of Action
This high-molecular-weight anionic polymer forms a continuous film on the skin, reducing transepidermal water loss. In products, its negatively charged groups stabilize emulsions and prevent pigment agglomeration, enhancing formulation integrity.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 CIR Amended Safety Assessment of Acrylates Copolymers (2018)
- 02 International Journal of Toxicology 21(Suppl 3):1-50 (2002)
- 03 PCC Group Product Portal
- 04 Ataman Chemicals Technical Data
Transparency
Dusting Analysis
No data suggests that Ammonium Polyacrylate is commonly dusted, indicating its effectiveness is generally recognized and utilized at functional concentrations.
The Formula
Formulation
Stability
Highly stable across a wide pH range, though its dispersing performance is optimal in slightly alkaline conditions (pH 7-9). It is compatible with acrylic, styrene-acrylic, and vinyl acetate dispersions.
Synergies
- Acrylic dispersions
- Styrene-acrylic dispersions
- Vinyl acetate dispersions
Conflicts
- Multivalent metal cations (e.g., Mg2+, Ca2+)
- Strongly cationic ingredients
- High electrolyte concentrations
Safety
Safety Profile
The CIR Expert Panel found it safe at concentrations up to 15% in rinse-off products, and much lower in leave-on. It's crucial to control residual acrylic acid monomers below 300 ppm to avoid potential irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ammonium Polyacrylate is a valuable multi-functional ingredient, offering skin-protective and film-forming benefits while enhancing product stability and texture with a low risk of irritation.
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References
Sources