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Moumoujus

POLYACRYLATE-10.

Valuable CAS - / EMULSION STABILISING, OPACIFYING

POLYACRYLATE-10 is a versatile synthetic polymer primarily functioning as a thickener, emulsion stabilizer, and texture enhancer in skincare formulations. It contributes to product viscosity and creates a desirable skin feel while helping maintain formula integrity.

Summary

Viscosity controlling Emulsion stabilising Thickener Film former Texture enhancer

Science

Mechanism of Action

When hydrated in aqueous solutions, POLYACRYLATE-10 forms a stable and flexible network of polymer chains, significantly increasing viscosity and controlling rheological properties. This allows it to function as a hydrogel, effectively retaining water to support skin hydration and improve product texture. Its amphiphilic nature enables it to act as an an emulsifying agent, stabilizing oil-in-water formulations and preventing phase separation. Furthermore, it can create a protective, moisture-retaining film on the skin's surface.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–5%
Optimal

0.1%

Key findings

  1. 01 Typical use concentrations for polyacrylate crosspolymers, including related forms like Polyacrylate Crosspolymer-14, range from 0.1% to 1% to achieve optimal skin feel, stability, and desired textures.
  2. 02 Related crosslinked alkyl acrylates, such as Acrylates/C10-30 Alkyl Acrylate Crosspolymer, are safely used in leave-on and rinse-off products at concentrations up to 5%, provided they are not polymerized in benzene.
  3. 03 Patch testing of a 2% aqueous solution of Acrylates/C10-30 Alkyl Acrylate Crosspolymer (Carbopol®) indicated a low potential for sensitization.

Transparency

Dusting Analysis

Not commonly dusted

POLYACRYLATE-10 primarily serves as a formulation aid rather than an active ingredient, so the concept of 'dusting' (underdosing for efficacy) is not applicable to its functional role.

The Formula

Formulation

Solubility
Both
Optimal pH 7 – 9
0 7 14

Stability

Polyacrylate chains swell and increase viscosity upon neutralization (pH greater than 7). While generally stable, some high chain length cross-linked polyacrylates may exhibit sensitivity to pH and salt, potentially leading to viscosity loss upon skin contact. When handled and stored according to guidelines, polyacrylates are stable and do not present hazardous reactions.

Conflicts

  • Must not be polymerized in benzene due to safety considerations.

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Max tested
5%
Sensitization risk Low

The CIR Expert Panel determined that crosslinked alkyl acrylates, a category including related polyacrylates, are safe at concentrations up to 5% in cosmetic products, provided they are not polymerized in benzene. The broader category of 126 acrylates copolymer ingredients is considered safe when formulated to be non-irritating. Testing on undiluted Sodium Polyacrylate and a 2% solution in rabbits demonstrated no irritation or sensitization.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

POLYACRYLATE-10 is a valuable formulation ingredient, expertly enhancing product texture, stability, and skin feel across a wide range of skincare applications with a low risk of irritation.

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