Science
Mechanism of Action
This extract combats oxidative stress through its antioxidant compounds, neutralizing free radicals and bolstering the skin's natural defenses. Its menthol and menthone content provides anti-inflammatory action by inhibiting pro-inflammatory molecules such as prostaglandin PGE-2, interleukins (IL-1-β, IL-6), and leukotriene LTB-4, while also blocking calcium channels associated with cytokine production. It enhances microcirculation for improved cellular oxygenation, exhibits antibacterial effects to manage problematic skin, and tightens pores through astringent action. Additionally, it alleviates itching by stimulating TRPM8 thermo-receptors, inducing a sensation of analgesia.
Research
Clinical Evidence
Medium confidence2%
Key findings
- 01 Studies on Mentha Piperita Leaf Extract indicate optimal results in moisturizing and anti-aging formulations at concentrations between 2-5%.
- 02 A recommended use level of 5-10% has been suggested for Mentha Piperita Leaf Extract in general skincare applications.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The extract is typically formulated in a water and glycerin base, necessitating the inclusion of appropriate preservation systems to maintain stability and microbial integrity.
Conflicts
- High concentrations or direct topical application may induce irritation, particularly in individuals with sensitive skin.
- Not advised for facial application on infants or young children due to menthol's potential impact on respiratory function.
Safety
Safety Profile
The CIR Expert Panel found insufficient data on composition, skin irritation, and sensitization for Mentha Piperita Flower/Leaf/Stem Extract. While other peppermint-derived ingredients (e.g., Oil, Leaf Extract) were deemed safe with pulegone concentrations below 1%, this specific extract lacks comprehensive evaluation. Its medium irritancy potential suggests careful formulation and patch testing.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While Mentha Piperita Flower/Leaf/Stem Extract offers promising antioxidant, anti-inflammatory, and purifying benefits for various skin types, its CIR safety status of 'insufficient data' for this specific form warrants caution and further research prior to widespread formulation.
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References
Sources