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BUTADIENE/ISOPRENE COPOLYMER.

Valuable / SKIN CONDITIONING

A synthetic hydrocarbon polymer that creates protective barriers on skin while delivering enhanced conditioning benefits. This film-forming agent excels at preventing moisture loss and improving the deposition of hydrophobic actives, particularly in cleansing formulations where benefits typically wash away.

Film forming Skin conditioning Emollient Delivery enhancement

Science

Forms a hydrophobic, occlusive film on the skin surface that reduces transepidermal water loss while acting as a carrier system for other beneficial lipophilic compounds. The polymer's molecular structure enables superior adhesion and deposition of conditioning agents, especially in rinse-off products.


Research

Medium confidence
Effective range 1–10%
Optimal

5%

Key findings

  1. 01 Patent studies demonstrate 5% concentration enhances hydrophobic substance deposition in cleansing systems
  2. 02 Hand sanitizer formulations at 1-10% effectively counteract alcohol dehydration up to 95% concentrations

Transparency

Not commonly dusted

Specialized polymer primarily used in specific delivery systems rather than as marketing filler


The Formula

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Exceptionally stable across pH 4-8 range due to non-polar hydrocarbon backbone; oxidation-resistant when hydrogenated

Synergies

  • Hydrophobic oils
  • Fragrances
  • Lipophilic actives

Conflicts

  • Highly polar aqueous systems without emulsifiers
  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Sensitization risk Low

Large molecular weight prevents skin penetration; chemically inert synthetic polymer with established safety profile


Your Skin

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

Our Assessment

Valuable

A specialized conditioning polymer that effectively delivers moisture protection and enhances active deposition in challenging formulation environments.


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