Science
Mechanism of Action
Myrtenal exerts its beneficial effects through multiple pathways. Its antioxidant capacity involves stabilizing endogenous antioxidant defenses, while its antimicrobial and antifungal actions target various microorganisms. Preclinical studies also indicate its potential to influence apoptotic and proapoptotic signaling, inhibit TNF- expression, and regulate lysosomal and mitochondrial enzymes, contributing to its observed anti-tumor activity.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 As a major component of Myrtus communis essential oil (3.5%), myrtenal contributes to observed antimicrobial, antimycotic, and antioxidant activities, suggesting its role in combating oxidative stress and microbial growth.
- 02 In vitro, myrtenal demonstrated potent cytotoxic effects on human colon tumor cells (HT29) at concentrations between 0.1-5 mM (IC50=5.3 mM).
- 03 Preclinical in vitro and in vivo studies in mice showed myrtenal inhibited V-type ATPase on melanoma cell lines, leading to cell death and suppressed melanoma metastasis, though these findings are not directly transferable to topical skincare efficacy.
Transparency
Dusting Analysis
While myrtenal is a common ingredient in fragrances and cosmetics, its therapeutic potential for specific skin conditions beyond basic antioxidant or antimicrobial effects lacks extensive human topical clinical validation. Claims of broad efficacy based solely on preclinical anti-tumor or in vitro data may represent an overstatement of its current proven benefits in precision skincare.
The Formula
Formulation
Stability
Myrtenal exhibits practical insolubility in water but readily dissolves in alcohol and oils. It is considered relatively neutral. For optimal stability, storage at temperatures between 2-8°C is recommended.
Safety
Safety Profile
The toxicological characterization of myrtenal is incomplete, though the EFSA FAF Panel (2019) indicated a lack of genotoxicity. The FDA no longer permits its use as a synthetic flavoring substance. The Research Institute for Fragrance Materials (RIFM) recommends usage levels up to 2.0000% in fragrance concentrates for general myrtenal. However, RIFM specifies that the (1R)-(-)-Myrtenal enantiomer is 'not for fragrance use', indicating potential enantiomer-specific safety concerns. Dermal toxicity studies in rabbits suggested low acute topical toxicity (LD50 > 5000 mg/kg).
Your Skin
Skin Compatibility
Our Assessment
Verdict
Myrtenal shows promising antioxidant and antimicrobial properties, and is established as a fragrance ingredient, but lacks sufficient human topical clinical data to support broader precision skincare efficacy claims.
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