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Moumoujus

HEXAHYDRO-TETRAMETHYL-METHANOAZULEN-5-YL METHYL KETONE.

Questionable CAS 68039-35-0 / PERFUMING

This unsaturated ketone compound functions primarily as a perfuming agent, contributing a fragrance profile to cosmetic and personal care products. It has no identified direct mechanisms of action that provide specific benefits for skin health.

Summary

fragrance

Science

Mechanism of Action

The primary mechanism of HEXAHYDRO-TETRAMETHYL-METHANOAZULEN-5-YL METHYL KETONE is to impart a scent profile; direct skincare benefits have not been established. Chemically, it is an unsaturated ketone with a bridged ring structure. The external ketone carbonyl group can participate in condensation reactions, forming imine derivatives with organic amine compounds.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient exhibits stability in various product bases, including acid cleaners, alcoholic lotions, detergents, fabric softeners, and shampoos. For optimal longevity, storage in tightly sealed containers in a cool, dry place, protected from heat and light, is recommended, ensuring a shelf life of 24 months or more.

Conflicts

  • strong acids
  • alkali
  • oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
20%
Sensitization risk Moderate

Evaluated by the Research Institute for Fragrance Materials (RIFM), this ingredient (also known as Acetyl Cedrene) is deemed safe for use as a fragrance component. Assessments included genotoxicity, repeated dose toxicity, reproductive toxicity, local respiratory toxicity, photoirritation/photoallergenicity, and skin sensitization. It is identified as a skin sensitizer, with a defined No-Effect Sensitization Induction Level (NESIL) of 35000 µg/cm². The Scientific Committee on Consumer Safety (SCCS) has noted restrictions for its use in cosmetic products, indicating safety only under specific conditions (e.g., purity, maximum concentration, or specific product categories). In California's Safe Cosmetics Program, it requires reporting for leave-on products at or above 0.001% (10 ppm) and for rinse-off products at or above 0.01% (100 ppm). RIFM suggests usage levels up to 20.0% in fragrance concentrates, with reported dermal exposures in hydroalcoholic products ranging from 0.002% to 15.16%.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Verdict

Questionable

This ingredient primarily serves as a fragrance without offering direct skincare benefits. Its classification as a skin sensitizer and regulatory restrictions raise concerns for precision skincare formulations, despite its widespread use.

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