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C9-20 ISOALKANE.

Valuable CAS 2288769-60-6 (generic) / SKIN CONDITIONING - EMOLLIENT, SOLVENT

A sophisticated, branched-chain hydrocarbon that serves as a high-performance solvent and emollient. It is engineered to provide a weightless, 'dry' skin feel while stabilizing complex formulas containing potent actives.

emollient solvent skin-conditioning agent viscosity controller

Science

By utilizing a branched molecular structure, it reduces surface tension for superior glide and fills intercellular gaps to smooth the skin's surface. It creates a breathable, non-occlusive film that mitigates trans-epidermal water loss (TEWL) without the heaviness associated with linear oils.


Research

High confidence
Effective range 0.5–50%
Optimal

10%

Key findings

  1. 01 Demonstrated significant improvement in the physical stability of emulsions containing high loads of Vitamin C and Retinol while maintaining a non-greasy profile.
  2. 02 Effective at dissolving long-wear pigments and sebaceous debris in cleansing systems without leaving residue.

Transparency

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

Because it functions as a primary solvent and texture enhancer, it is typically used in functional concentrations (above 0.5%) rather than for marketing claims.


The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Extremely chemically inert and resistant to oxidation; it does not turn rancid and maintains integrity across a broad pH spectrum.

Synergies

  • Vitamin C (L-Ascorbic Acid)
  • Retinol
  • Mineral UV Filters

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Safe as used
Max tested
50%
Pregnancy
Safe
Sensitization risk Low

Member of the Isoparaffins group; leave-on cosmetic use is traditionally capped at 50% for solvent applications, though wash-off products can utilize higher concentrations.


Your Skin

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

Our Assessment

Valuable

An essential formulation tool for achieving elegant, high-stability products that require a dry-touch finish and effective active delivery.


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