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Moumoujus

7-METHYL-3-METHYLENE-1,6-OCTADIENE HYDROCARBONS.

Optional CAS 90480-40-3 / PERFUMING

A terpene hydrocarbon primarily known for its fragrance properties that also demonstrates antioxidant and anti-photoaging effects in laboratory studies. While offering potential skin benefits through collagen stimulation and UV protection, its inherent instability and moderate irritancy require careful formulation consideration.

Summary

fragrance perfuming masking antioxidant penetration enhancer

Science

Mechanism of Action

Functions as an antioxidant by reducing reactive oxygen species and inflammatory markers (IL-6) while inhibiting collagen-degrading enzymes (MMP-1, MMP-3). Simultaneously enhances collagen synthesis by upregulating TGF-β1 and type I procollagen production, while acting as a penetration enhancer by temporarily modifying stratum corneum lipid structure.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–0.5%
Optimal

0.3%

Key findings

  1. 01 In vitro human dermal fibroblast studies at 0.1-0.5% demonstrated significant reduction in UV-induced oxidative stress and matrix degradation with enhanced collagen production

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.05%
Red flag below
2.5%

Often included at trace amounts primarily for fragrance masking rather than therapeutic benefit, with regulatory maximum at 2.5% rarely approached in commercial formulations

The Formula

Formulation

Solubility
Oil
Optimal pH 5 – 5.5
0 7 14

Stability

Extremely unstable with tendency toward spontaneous polymerization and oxidation upon air exposure, requiring antioxidant stabilizers at 0.05-0.1%

Synergies

  • BHT
  • rosemary extract
  • tocopherol

Conflicts

  • nitrosating agents
  • strong oxidizing agents
  • prolonged air exposure

Safety

Safety Profile

CIR Status
Safe as used
Max tested
2.5%
Pregnancy
Safe
Sensitization risk Moderate

Safety primarily evaluated as botanical oil constituent rather than isolated compound, with concentrations above 10% causing significant irritation

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

Offers intriguing anti-aging potential but formulation challenges and moderate irritancy limit practical applications beyond fragrance use.

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