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BUTANEDIOL/ADIPIC ACID COPOLYMER.

Valuable CAS 25103-87-1 / SKIN CONDITIONING

A bio-based elastomeric polymer that creates a flexible, breathable film on skin to absorb excess sebum and provide mattifying benefits. This versatile ingredient simultaneously delivers soft-focus optical blurring effects while serving as a controlled-release vehicle for oil-soluble actives.

skin-conditioning viscosity controlling film forming mattifying sebum absorption

Science

Forms a flexible elastomeric matrix on the skin surface that selectively absorbs sebum for mattifying effects while filling micro-irregularities to create soft-focus blur. The polymer network provides controlled release of oil-soluble ingredients and maintains skin hydration through its non-occlusive film properties.


Research

High confidence
Effective range 0.1–25%
Optimal

2.5%

Key findings

  1. 01 Demonstrated efficacy as elastomeric film-former providing smooth, non-tacky feel with optical soft-focus properties
  2. 02 Proven effective as thixotropic agent for pigment stabilization and texture modification in high-oil formulations

Transparency

Not commonly dusted

Functional concentrations are typically well above trace amounts, making dusting unlikely for this film-forming polymer


The Formula

Solubility
Oil
Optimal pH 3 – 7.5
0 7 14

Stability

Maintains stability in anhydrous systems and oil-in-water emulsions, with enhanced acid compatibility for AHA co-formulation

Synergies

  • AHA acids (pH 3-4 compatible)
  • Oil-soluble actives (controlled release)
  • Pigments and sunscreens (dispersion aid)

Conflicts

  • Highly polar aqueous systems without emulsification
  • Strong oxidizing compounds

Safety

CIR Status
Not reviewed
Sensitization risk Low

FDA-recognized as indirect food additive (21 CFR 175.300) indicating established low toxicity profile for this bio-based silicone alternative


Your Skin

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

Our Assessment

Valuable

A versatile bio-based polymer offering proven mattifying and soft-focus benefits with excellent safety profile across all skin types.


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References