Science
Mechanism of Action
Rich in antioxidant components such as carotenoids, coumarins, limonoids, and flavonoids, CITRUS SHUNKOKAN PEEL EXTRACT actively scavenges free radicals to protect skin from UV-induced damage and inhibit lipid oxidation. Its skin-brightening efficacy is attributed to its ability to inhibit tyrosinase, a key enzyme in melanin production. Furthermore, the extract may exhibit beneficial anti-inflammatory and vasoprotective properties.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal pH range for stability is not specifically defined. However, citrus peel extracts, containing phenolic compounds and flavonoids, can be susceptible to thermal degradation. Encapsulation techniques can enhance both water solubility and thermal stability of the extract.
Conflicts
- High concentrations of specific essential oil components, including limonene, citral, other monoterpenes, and furocoumarins (e.g., 5-methoxypsoralen, 7-methoxycoumarin), must be precisely controlled to avoid potential skin sensitization and irritation.
Safety
Safety Profile
The CIR Expert Panel has deemed this ingredient, along with other citrus peel extracts, safe for cosmetic use (both rinse-off and leave-on) when formulated to be non-sensitizing and non-irritating. A critical restriction for leave-on products is that the formulation must not contain more than 0.0015% (15 ppm) of 5-methoxypsoralen (5-MOP). Formulators must carefully control the levels of plant constituents such as limonene, citral, other monoterpenes, and furocoumarins to prevent sensitization or other adverse effects.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This extract offers valuable antioxidant and brightening benefits through a clear mechanistic pathway, but precise formulation control is essential to ensure safety and prevent potential sensitization.
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References
Sources