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C9-14 ISOPARAFFIN.

Valuable CAS 246538-73-8 / SOLVENT, VISCOSITY CONTROLLING

A high-purity, branched-chain hydrocarbon that serves as a versatile solvent and texture enhancer in modern skincare. It is frequently utilized as a lightweight, non-greasy alternative to volatile silicones to improve product glide and finish.

Solvent Viscosity Decreasing Agent Emollient Texture Enhancer

Science

It functions as an emollient by creating a breathable, thin occlusive barrier on the stratum corneum, which effectively traps moisture and minimizes transepidermal water loss. Additionally, its low viscosity allows it to dissolve other ingredients and ensure an even application of pigment and UV filters.


Research

High confidence
Effective range 0.0001–90%
Optimal

N/A

Key findings

  1. 01 The 2012 CIR Safety Assessment confirmed no evidence of genotoxicity, reproductive toxicity, or developmental toxicity across a wide concentration range.
  2. 02 Human patch testing validated the ingredient as non-sensitizing and non-phototoxic in cosmetic applications.
  3. 03 Inhalation studies established a No Observed Adverse Effect Concentration (NOAEC) of 10,000 mg/m3, demonstrating extremely low systemic toxicity.

Transparency

Not commonly dusted

As a functional solvent and viscosity modifier rather than a primary active, it is typically used in the base of a formulation at concentrations required for texture, meaning 'dusting' is not a common concern.


The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Exhibits exceptional stability against oxidation and thermal degradation; remains effective across a broad pH spectrum.

Synergies

  • UV Filters
  • Pigments
  • Long-wear polymers

Conflicts

  • Strong oxidizing agents
  • Water-based systems without emulsifiers

Safety

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

Recognized by the FDA for use as a food additive in fruit coatings, underscoring its high safety profile.


Your Skin

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

Our Assessment

Valuable

A highly stable and safe formulation tool that provides an elegant, lightweight finish while supporting skin barrier integrity.


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