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C11-12 ISOPARAFFIN.

Valuable CAS 246538-76-1 / SKIN CONDITIONING, SOLVENT

A branched hydrocarbon solvent that delivers weightless emollient properties while enhancing product spreadability and texture. This volatile ingredient creates a smooth, non-greasy application experience by forming a temporary protective film that reduces water loss before evaporating cleanly from the skin surface.

solvent skin conditioning texture enhancer

Science

Functions as a dual-action emollient and solvent by forming a thin, semi-occlusive barrier that minimizes transepidermal water loss while softening the stratum corneum. Its low surface tension properties improve formulation spreadability and act as an effective carrier system for pigments and actives, with its volatile nature ensuring rapid evaporation for a weightless finish.


Research

High confidence
Effective range ≤90%
Optimal

N/A

Key findings

  1. 01 Human trials with 48.28% concentration in mascara demonstrated non-sensitizing properties and excellent skin compatibility
  2. 02 Safety evaluation at concentrations up to 90% confirmed non-irritating and non-sensitizing profile in standard cosmetic applications
  3. 03 Undiluted testing revealed low acute dermal toxicity with minimal eye and skin irritation potential

Transparency

Not commonly dusted

As a functional solvent and texture enhancer rather than an active ingredient, dusting concerns are not applicable to this hydrocarbon ingredient


The Formula

Solubility
Oil
Optimal pH 3 – 11
0 7 14

Stability

Demonstrates exceptional stability across wide pH ranges due to its chemically inert hydrocarbon structure. Heat-tolerant but requires sealed containers to prevent volatility-related losses during storage.

Synergies

  • Pigments as carrier system
  • Oil-based actives for enhanced delivery

Conflicts

  • Strong oxidizing agents
  • Highly polar water phases without proper emulsification systems

Safety

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

CIR Expert Panel confirmation of safety in current usage practices and concentrations. Additional FDA approval for direct food contact applications demonstrates robust safety profile.


Your Skin

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

Our Assessment

Valuable

A well-tolerated multifunctional ingredient that enhances product performance through superior texture and application properties with strong safety credentials.


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