Science
Mechanism of Action
The extract functions by disrupting the NF-κB signaling pathway to inhibit pro-inflammatory cytokines (IL-1β, TNF-α) and scavenging reactive oxygen species (ROS) to mitigate UV-induced damage. Furthermore, it upregulates the expression of filaggrin and loricrin to reinforce the skin barrier and utilizes lignan glycosides to accelerate keratinocyte proliferation for wound healing.
Research
Clinical Evidence
High confidence0.5%
Key findings
- 01 Demonstrated antioxidant potency superior to L-ascorbic acid with an IC50 of 28.10 μg/mL for free radical scavenging.
- 02 Achieved a 169.30% increase in HaCaT cell proliferation at a concentration of 12.5 μM, indicating significant regenerative capacity.
- 03 Significant inhibition of inflammatory markers and cytokine production observed at concentrations of 0.25 mg/mL and above.
Transparency
Dusting Analysis
Often included in trace amounts for marketing claims; however, clinical data suggests anti-inflammatory benefits require a concentration of at least 0.25 mg/mL within the final formulation.
The Formula
Formulation
Stability
Highly sensitive to oxidation and browning when exposed to light, air, or temperatures exceeding 40°C. Peak stability is achieved at a slightly acidic pH of 5.5–6.0.
Synergies
- L-Ascorbic Acid
- Tocopherol
- UV Filters
- Niacinamide
Conflicts
- Heavy metals (Iron/Copper)
- Strongly alkaline environments (pH > 7.5)
- Strong oxidizing agents
Safety
Safety Profile
The CIR Expert Panel considers leaf-derived Camellia ingredients safe when formulated to be non-sensitizing, with an industry-standard ceiling of 0.86% for leave-on products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An elite botanical antioxidant that offers superior free-radical scavenging and barrier-reinforcing properties when formulated at precise, clinically relevant concentrations.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources