Science
Mechanism of Action
This extract operates through a dual mechanism: it significantly reduces skin inflammation by inhibiting the production of key proinflammatory cytokines, such as IL-6 and TNF-α, in UVB-exposed keratinocytes. Simultaneously, it acts as a potent skin brightener by dose-dependently suppressing α-MSH-induced melanin synthesis, diminishing intracellular tyrosinase activity, and downregulating the expression of critical melanogenesis-related proteins (tyrosinase, TRP-1, and TRP-2). Furthermore, it possesses antioxidant properties, contributing to cellular defense.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The extract is typically prepared using 70% ethanol, suggesting good stability and miscibility within hydro-alcoholic formulations.
Safety
Safety Profile
Human skin primary irritation tests indicated no adverse reactions, suggesting favorable tolerability for topical application. Official regulatory status from CIR, SCCS, or FDA is currently unavailable for this specific ingredient.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Offering robust anti-inflammatory, skin brightening, and antioxidant properties with proven tolerability, Rhododendron Weyrichii Flower Extract is a valuable active for formulations targeting redness, uneven tone, and environmental stressors.
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References
Sources