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Moumoujus

POLYESTER-5.

Valuable CAS - / FILM FORMING, VISCOSITY CONTROLLING

POLYESTER-5 is a synthetic polymer functioning as a film-forming, emulsifying, and viscosity-controlling agent. It is designed to enhance the wear, water-resistance, and transfer-resistance of formulations while improving product stability and texture.

Summary

Film forming Viscosity controlling Emulsifying Dispersing

Science

Mechanism of Action

By creating a clear, flexible film on the skin, POLYESTER-5 significantly extends the long-wear, water-resistance, smudge-resistance, and transfer-resistance of cosmetic formulations. Its polymeric structure also stabilizes emulsions by effectively dispersing hydrophobic ingredients into aqueous systems, contributing to a consistent texture and preventing ingredient separation over time.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

POLYESTER-5 is highly effective in promoting stable, consistent textures within water-based formulations, enhancing compatibility with pigments and active ingredients to prevent separation and maintain product integrity over time.

Synergies

  • Pigments
  • Actives (for improved product compatibility and stability)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
30%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded POLYESTER-5 is safe for use in cosmetics up to 30%. This is primarily due to its large molecular weight, which significantly minimizes skin absorption, thus reducing the risk of adverse effects. While generally considered non-irritating, individual patch testing is advised. It is important to note its limited biodegradability and potential contribution to environmental persistence.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

POLYESTER-5 is a valuable ingredient for significantly enhancing the long-wear, transfer-resistance, and stability of cosmetic formulations, making it suitable across all skin types.

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