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TROMETHAMINE ACRYLATES/ACRYLONITROGENS COPOLYMER.

Valuable / FILM FORMING, VISCOSITY CONTROLLING

TROMETHAMINE ACRYLATES/ACRYLONITROGENS COPOLYMER is a synthetic polymer designed to optimize cosmetic formulations. It functions primarily as a film-former on the skin, hair, or nails, while also acting as a critical viscosity-controlling agent to achieve desired product textures and stability.

Summary

film-forming viscosity controlling

Science

Mechanism of Action

This ingredient functions by creating a continuous, protective film across the skin's surface, which can contribute to a smoother tactile feel, help to lock in moisture, and enhance product water resistance. As a viscosity controlling agent, it enables precise adjustment of a product's thickness and flow properties. Drawing from the broader acrylates copolymer family, it further supports emulsion stability, suspends particulate matter uniformly, and can aid in maintaining the presence of active ingredients on the skin.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

This copolymer is designed for flexibility in formulation. While related acrylate polymers are often water-insoluble as supplied, the Tromethamine component in this specific copolymer facilitates water solubility or dispersibility through the neutralization of its carboxyl groups. Optimal solubilization typically requires complete neutralization with a suitable water-soluble base. It can also be incorporated into oil-based systems via neutralization with a long-chain amine.

Conflicts

  • Cationic ingredients (due to the anionic nature of acrylate copolymers)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
25%
Sensitization risk Low (when properly formulated)

The CIR Expert Panel has determined that acrylamide/acrylate copolymer ingredients, including the broader acrylates copolymer family, are safe for use in cosmetics under the condition that formulations are non-irritating. The high molecular weight of these ingredients prevents dermal absorption, minimizing systemic exposure. Formulators must ensure that the concentration of residual acrylamide monomer does not exceed 5 ppm. For leave-on products, the maximum reported concentration for related acrylates copolymers is 25%, while in nail formulations, concentrations can reach up to 98.6%.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

TROMETHAMINE ACRYLATES/ACRYLONITROGENS COPOLYMER is a valuable functional ingredient, safely enhancing product texture and stability while forming a beneficial film on the skin, provided it is formulated correctly within established concentration limits.

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