Science
Mechanism of Action
The efficacy of Citrus aurantifolia leaf extract is primarily attributed to its rich composition of flavonoids and phenolic compounds, including apigenin, rutin, quercetin, kaempferol, and nobiletin. These constituents function as potent radical scavengers, thereby imparting antioxidant benefits. Furthermore, the extract exhibits specific antibacterial activity against bacteria such as E. coli and P. aeruginosa, suggesting a role in skin purification and blemish management.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Bioactive components within Citrus aurantifolia are susceptible to degradation through physical, chemical, or enzymatic processes during storage or processing.
Conflicts
- Exposure to sunlight (potential for increased photosensitivity)
- Combination with other problematic ingredients (may heighten irritation risk)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) has indicated insufficient specific safety data for *Citrus aurantifolia leaf extract* in cosmetics. While the U.S. FDA generally recognizes some Citrus flowers and leaves as safe (GRAS) for food, comprehensive cosmetic safety assessments, including maximum concentrations, are not readily available. Information on *Citrus aurantifolia fruit extract* suggests a potential for skin sensitization and increased photosensitivity; these cautions are broadly extended to other citrus-derived ingredients. This extract is associated with a medium irritancy potential, and prior patch testing is strongly recommended.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its potential antioxidant and antibacterial properties, the lack of comprehensive cosmetic-specific safety data, a noted medium irritancy, and potential for photosensitivity render this ingredient questionable for widespread application without further research and rigorous formulation considerations.
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References
Sources