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Moumoujus

C9-11 ISOPARAFFIN.

Valuable CAS 68551-16-6 / SOLVENT, VISCOSITY CONTROLLING

A high-purity, branched-chain synthetic hydrocarbon that serves as a lightweight texture enhancer and solvent. It is specifically utilized in precision skincare to ensure seamless application while creating a breathable barrier against moisture loss.

Summary

Solvent Viscosity Decreasing Agent Emollient Skin Conditioning

Science

Mechanism of Action

It functions as an emollient and viscosity regulator. By forming a non-greasy, occlusive film, it prevents trans-epidermal water loss (TEWL) and facilitates the even distribution of active ingredients across the skin's surface.

Research

Clinical Evidence

High confidence
Effective range 0.5–90%
Optimal

15%

Key findings

  1. 01 Clinical assessments by the CIR Expert Panel (2010) identified C9-11 Isoparaffin as a non-sensitizer even at concentrations reaching 90%.
  2. 02 Research published in the Journal of the American College of Toxicology confirmed the ingredient is non-phototoxic and safe for use in light-exposed formulations.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

As a functional solvent and texture modifier, it is typically used at meaningful levels to achieve specific formula rheology rather than 'label claim' marketing.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly chemically inert; exhibits superior resistance to thermal degradation and oxidation compared to natural botanical oils.

Synergies

  • Silicones
  • Mineral pigments
  • Lipophilic active carriers

Conflicts

  • Highly polar aqueous phases
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
90%
Pregnancy
Safe
Sensitization risk Low

While undiluted forms showed mild irritation in animal models, it is non-irritating when formulated within standard cosmetic parameters.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An exceptionally stable and reliable texture-modifying agent that provides an elegant finish without the heaviness of traditional oils.

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References

Sources