Science
Mechanism of Action
It functions as a specialized inhibitor of the enzyme aminopeptidase N (APN), which modulates the differentiation of sebocytes and slows the rate of sebum excretion. Additionally, its high concentration of diosphenol and flavonoids inhibits the 5-LO and COX pathways, reducing cutaneous inflammation and micro-swelling around the pore wall.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 In-vivo trials using Buchu-derived compounds showed a 13% reduction in sebum production over 28 days.
- 02 In-vitro studies demonstrate significant anti-inflammatory activity via 5-lipoxygenase inhibition with an IC50 of approximately 50 μg/ml.
Transparency
Dusting Analysis
Because of its intense aromatic profile and cost, many brands include it at 'trace' amounts (below 0.1%) for marketing claims. However, clinical sebum regulation and pore-refining benefits require higher concentrations, typically found in standardized trade-named extracts.
The Formula
Formulation
Stability
Highly sensitive to light, heat, and oxygen; requires light-protected packaging and airtight storage to prevent the oxidation of volatile terpenes.
Synergies
- Niacinamide
- Salicylic Acid
- Zinc PCA
Conflicts
- Strong oxidizing agents
- Highly acidic formulas (pH < 3.0)
- PVC-based packaging
Safety
Safety Profile
Contains naturally occurring limonene and pulegone. While effective, it should be limited in leave-on products for those with compromised skin barriers to avoid potential sensitization.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent botanical active for oily and combination skin types seeking to reduce shine and visible pore size through targeted enzymatic inhibition.
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References
Sources