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Moumoujus

ABIETYL ALCOHOL.

Optional CAS 666-84-2 / VISCOSITY CONTROLLING

A naturally-derived abietane diterpenoid that serves as a viscosity-controlling agent and emulsion stabilizer in skincare formulations. This pine-derived ingredient combines rheology modification with film-forming properties and secondary antimicrobial benefits. While functionally useful, it carries moderate allergenic potential for individuals sensitive to rosin or pine derivatives.

Summary

viscosity controlling emulsion stabilizing film forming antimicrobial

Science

Mechanism of Action

Functions through its bulky, hydrophobic molecular structure to modify formulation rheology and stabilize emulsions. Creates protective film-forming barriers on skin while providing secondary antimicrobial activity by disrupting microbial cell membranes.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

1.31%

Key findings

  1. 01 NIH study (2024) identified antimicrobial activity at 1.31% concentration in plant extracts against E. coli and C. albicans
  2. 02 ResearchGate study (2025) documented allergic reactions in 34.6% of colophonium-sensitive subjects

Transparency

Dusting Analysis

Not commonly dusted

Primarily used as a functional ingredient in specific applications like waterproof formulations and protective barriers rather than for marketing appeal

The Formula

Formulation

Solubility
Oil
Optimal pH 4.5 – 7
0 7 14

Stability

Highly lipophilic compound (logP 4.9-6.4) stable under standard processing temperatures but requires antioxidant protection to prevent oxidation

Synergies

  • Tocopherol
  • antioxidant systems

Conflicts

  • Strong oxidizing agents
  • Highly aqueous systems without proper emulsification

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Moderate

Known contact allergen for individuals with pine/rosin sensitivity. FDA-approved for indirect food contact applications. Patch testing recommended for sensitive individuals.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A functional ingredient with specific applications but moderate allergenic potential limits its universal appeal.

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