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GLYCERYL ACRYLATE/ACRYLIC ACID COPOLYMER.

Valuable / HUMECTANT, VISCOSITY CONTROLLING

Glyceryl Acrylate/Acrylic Acid Copolymer is a versatile polymer engineered to deliver profound hydration and refine skin texture. It functions primarily as a humectant and film-forming agent, creating a subtle, protective layer on the skin's surface. This ingredient also acts as a valuable rheology modifier, enhancing product smoothness and overall consistency.

Summary

Humectant Film-forming agent Thickening agent Emulsifier Stabilizer

Science

Mechanism of Action

This copolymer functions as a potent humectant, actively drawing and retaining moisture from the ambient environment to significantly boost skin hydration. It adeptly forms a hydrogel, which facilitates the efficient delivery of water-soluble active ingredients into the skin. Simultaneously, it establishes a delicate protective film that minimizes transepidermal water loss and provides a shield against external environmental aggressors. Beyond hydration, it serves as an effective thickening agent, emulsifier, and stabilizer, crucial for achieving desirable product texture and formulation integrity.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Blends incorporating Glyceryl Acrylate/Acrylic Acid Copolymer (e.g., as part of Lubrajel CG) are recommended for superior moisturization, lubricity, spreadability, and emolliency in cosmetic applications.
  2. 02 The ingredient has been successfully formulated into eye lotions.
  3. 03 Evaluations demonstrated no irritation to rabbit vaginal mucosa or in ocular irritation potential studies on rabbit eyes.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 10
0 7 14

Stability

This copolymer contributes to overall formula stability and is particularly effective in stabilizing cold-manufactured emulsions. For creams and lotions, it is typically incorporated into the formulation after the emulsion has been formed.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed Glyceryl Acrylate/Acrylic Acid Copolymer and affirmed its safety for use in cosmetics, provided formulations are non-irritating. It is specified to contain less than 5 ppm residual acrylic acid, a level considered non-irritating due to the polymer's larger molecular size limiting skin penetration. While specific use concentrations up to 0.62% have been reported in eye lotions, and a related glyceryl acrylate (Glyceryl Polymethacrylate) has been used up to 1.9% in leave-on products, CIR has not established a broad maximum use concentration for Glyceryl Acrylate/Acrylic Acid Copolymer itself, beyond requiring it to be formulated without irritation.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Glyceryl Acrylate/Acrylic Acid Copolymer is a valuable ingredient due to its potent hydrating, film-forming, and texture-enhancing capabilities, making it highly compatible across all skin types and a broad spectrum of cosmetic applications.

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