Science
Mechanism of Action
This extract derives its biological activities from a high concentration of beneficial compounds including isoflavones, flavonoids, and quercetin. It functions as a powerful antioxidant by actively scavenging free radicals, thereby helping to delay photoaging effects. Additionally, it exhibits anti-inflammatory properties. Preclinical and in vitro studies suggest Pueraria flower extracts can stimulate cellular migration and proliferation, as well as induce the synthesis of Type I and IV collagen, contributing to overall skin regeneration and improvement of skin texture like wrinkles and roughness.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Studies indicate Pueraria flower extract effectively neutralizes free radicals, offering protection against photoaging, and may lead to improvements in skin wrinkles and roughness.
- 02 Research on a related species, Pueraria thunbergiana flower absolute, demonstrated its ability to stimulate human epidermal keratinocyte (HaCat) migration and proliferation, activate key protein kinases (serine/threonine-specific protein kinase and extracellular signal-regulated kinase 1/2), and induce the synthesis of Type I and IV collagen in vitro, suggesting potential for skin regeneration.
Transparency
Dusting Analysis
The provided research data does not contain information regarding dusting practices or specific concentration thresholds for this ingredient, indicating no common dusting concerns have been reported.
The Formula
Formulation
Stability
The antioxidant activity of Pueraria flower extracts is strongly influenced by the solvent used for extraction. The optimal pH range for its stability in formulations is currently unknown.
Safety
Safety Profile
Oral acute toxicity studies in mice showed an LD50 greater than 5 g/kg body weight, with no deaths or abnormal changes. Subchronic oral toxicity studies in rats estimated a No-Observed Adverse-Effect-Level (NOAEL) at 5.0% in the diet (equivalent to 3.0 g/kg BW/d for males and 3.5 g/kg BW/d for females) over 90 days, without mortality or toxicological effects. While Pueraria flower extract contains isoflavones with weak estrogenic activity (0.01–0.04 times that of soy isoflavones), it did not cause adverse estrogenic effects in uterotrophic bioassays even at high doses of 1000 mg/kg, suggesting a robust safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Pueraria Thomsoni Flower Extract is a valuable botanical ingredient offering significant antioxidant and anti-inflammatory benefits, with promising potential for photoaging defense and skin regeneration.
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References
Sources