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C10-11 ISOPARAFFIN.

Valuable CAS 246538-75-0 / SOLVENT, VISCOSITY CONTROLLING

A synthetic branched-chain hydrocarbon that serves as a lightweight emollient and solvent in cosmetic formulations. This ingredient enhances product spreadability and provides a silky, non-greasy finish through its balanced volatility profile.

solvent emollient viscosity controlling

Science

Works as a branched aliphatic hydrocarbon that reduces formulation viscosity while acting as an emollient. Its medium volatility allows adequate application time before evaporating to leave a smooth, non-greasy skin feel.


Research

High confidence
Effective range 3–48.28%
Optimal

N/A

Key findings

  1. 01 HRIPT testing at 3% showed no sensitization or irritation at 24, 48, and 120 hours
  2. 02 Patch testing with 48.28% concentration in mascara confirmed non-irritant status in 107 subjects
  3. 03 In vitro studies with 42% concentration demonstrated minimal ocular irritation potential

Transparency

Not commonly dusted

This ingredient serves legitimate formulation purposes as an emollient and solvent with extensive safety data supporting its use.


The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Chemically inert and thermally stable up to 60°C during processing. Demonstrates excellent compatibility with silicones, esters, and natural oils.

Synergies

  • silicones
  • esters
  • natural oils

Conflicts

  • strong oxidizers
  • strong acids

Safety

CIR Status
Safe as used
Max tested
48.28%
Pregnancy
Safe
Sensitization risk Low

Extensive safety testing confirms non-irritating and non-sensitizing properties. Rat nephrotoxicity findings are species-specific and not relevant to human use.


Your Skin

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

Our Assessment

Valuable

A well-tolerated formulation aid that enhances product texture and application across all skin types with robust safety data.


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