Science
Mechanism of Action
Myrtenol exerts its effects through several pathways. It significantly reduces oxidative stress, ameliorates inflammation, and inhibits apoptosis in skin cells. Furthermore, it upregulates autophagy via the MEK/ERK pathway, contributing to cellular renewal and repair. As an antimicrobial, it demonstrates bactericidal action, particularly against Staphylococcus aureus by interfering with bacterial cell wall synthesis. It also exhibits strong antibiofilm activity, reducing biofilm thickness, surface coverage, and inhibiting virulence factors, which enhances bacterial susceptibility to conventional antibiotics. These actions collectively support its role in skin repair and protection.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Demonstrated strong antibiofilm activity against Acinetobacter baumannii strains at 200 µg/mL, without harming bacterial growth or metabolic viability, and inhibited biofilm-associated virulence factors.
- 02 Exhibited bactericidal action against Staphylococcus aureus at 128 µg/mL, likely by disrupting bacterial cell wall synthesis.
- 03 In rat studies, both low and high doses promoted skin flap survival by increasing micro vessel density, improving blood circulation, reducing oxidative stress, ameliorating inflammation, inhibiting apoptosis, and upregulating autophagy via the MEK/ERK pathway.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Myrtenol, as a peroxidisable terpene, requires the addition of antioxidants during production to maintain peroxide levels below 10 millimoles peroxide per liter to prevent potential sensitization. It should be stored in tightly closed containers in a cool, well-ventilated area, away from direct sunlight.
Safety
Safety Profile
The RIFM assessment indicates myrtenol is not a safety concern for skin sensitization at current declared use levels (0.0130% in cosmetics, 0.0140% in fine fragrances) and is not genotoxic or expected to be phototoxic/photoallergenic. The WHO recognized it as a safe flavoring ingredient. However, it carries a risk of skin sensitization in predisposed individuals, particularly if peroxide levels exceed recommended limits due to degradation. Careful formulation with antioxidants is crucial to mitigate this risk.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Myrtenol is a valuable ingredient for targeted skincare formulations due to its robust antimicrobial, antioxidant, and regenerative properties, provided it is precisely formulated within established safety concentrations and with appropriate stability measures.
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References
Sources