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Moumoujus

BIS-ISOBUTYL PEG-24/PPG-7/DIMETHICONE COPOLYMER.

Valuable CAS 158451-77-5 (generic) / FILM FORMING, HUMECTANT

This block copolymer acts as an effective emulsifier and surfactant, stabilizing oil-in-water systems in various skincare formulations. It also functions as a film former and humectant, enhancing skin feel.

Summary

emulsifying surfactant emulsion stabilizer film former humectant viscosity increasing agent skin protector

Science

Mechanism of Action

Composed of PEG, PPG, and dimethicone, it facilitates stable oil-water emulsions by bridging hydrophilic and lipophilic phases. The dimethicone component creates a non-occlusive barrier, preventing water loss and imparting a smooth skin finish.

Research

Clinical Evidence

Insufficient-data confidence
Effective range 0.1–10%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5.5 – 8.5
0 7 14

Stability

Possessing both hydrophilic PEG/PPG and silicone-soluble groups, this polymer effectively emulsifies oil and water. It is particularly effective for water-in-oil silicone emulsions and maintains stability within a pH range of 5.5 to 8.5.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The CIR Expert Panel concluded this polyoxyalkylene siloxane copolymer is safe for cosmetic use up to 10% concentration. It showed no sensitizing effects at 25% in guinea pig studies, and its dimethicone component is an FDA-recognized skin protector.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

This versatile copolymer is valuable for its emulsifying, film-forming, and hydrating properties, enhancing product stability and skin feel while maintaining a strong safety profile across all skin types.

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