Science
Mechanism of Action
This botanical oil exerts antimicrobial action against various bacteria (e.g., Bacillus subtilis, Vibrio spp.) and fungi (e.g., Candida albicans, Aspergillus niger), contributing to skin purification and mitigating microbial imbalances often associated with acne and oily complexions. It possesses anti-inflammatory benefits that can visibly diminish redness and swelling, offering potential utility in conditions like dermatitis and rosacea. Rich in components such as carvone, phenolic acids, and flavonoids, it demonstrates antioxidant properties, thereby protecting dermal cells from free radical damage. Additionally, it imparts a characteristic refreshing and cooling sensation and can function as an odor-masking agent.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Demonstrated high in vitro antioxidant activity, with IC50 values ranging from 7.5-12.06 µg/mL via the DPPH method and 26.94-38.14 µg/mL using the β-carotene/linoleic acid method.
- 02 Exhibited effective free radical scavenging activity in vitro at 77.40 µg/mL.
- 03 Showed exceptional antifungal efficacy, creating an 18 mm inhibitory zone against Candida albicans and a 19 mm inhibitory zone against Aspergillus niger at higher concentrations. Even at lower concentrations, a 15 mm inhibitory zone against Aspergillus niger was observed.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability and safety necessitate proper dilution for skin application. Stabilization with antioxidant co-formulants and the use of oxygen-limiting packaging are advised, as monoterpenes like limonene readily oxidize, producing stronger sensitizers than their parent molecules.
Safety
Safety Profile
Mentha Spicata Leaf/Stem Oil itself has not been directly reviewed by CIR. However, a related ingredient, Mentha piperita oil, was deemed safe with a pulegone concentration limit of 1%. Spearmint oil generally has lower levels of menthol and menthone. While FDA-listed as GRAS for food flavoring, for cosmetic use, proper dilution is crucial due to potential for irritation. Carvone, a significant component, is a known allergen. Oxidation products of monoterpenes, such as limonene, can act as stronger sensitizers, underscoring the necessity for conservative use levels, rigorous compatibility testing, and stabilization measures.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Mentha Spicata Leaf/Stem Oil offers targeted benefits for specific skin concerns such as acne and inflammation due to its robust antioxidant and antimicrobial properties, but its significant potential for irritation and sensitization requires highly precise formulation and extreme caution, especially for sensitive skin.
Related
Similar Ingredients
Finding similar ingredients…