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By certification 
Herbex Cuspidatum
Polygonum Cuspidatum is a perennial herb belonging to the Polygonaceae. The main active component Polydatin enables it to exhibit antioxidative, anti-inflammatory and whitening effects.
INCI Name:
Water, Butylene Glycol, Polygonum Cuspidatum Root Extract
Features and benefits:
Anti-oxidation: Polydatin inhibits the oxidative damage of UVB to HaCaT cells in vitro; it also increases the content of SOD and GSH-Px, and decreases the production of MDA which helps lower the content of ROS.
Anti-inflammation: Polydatin inhibits the expression of apoptosis and inflammation genes.
Whitening: Polydatin extract inhibits cell proliferation and the activity of Tyrosinase, thus reducing the content of Melanin in cells.
Applications:
Recommended for anti-inflammatory products, repairing products, whitening products, anti-ageing products, etc.
Suitable for lotion, gel, essence, cream, etc.
Specifications:
| Appearance | Light yellow to yellow transparent liquid |
| Odor | Slight characteristic odor |
| pH(25℃) | 4.5-6.0 |
| Refractive index(20℃) | 1.370-1.420 |
| Density(20℃) | 1.00-1.05 g/cm3 |
| Content of Polydatin(HPLC) | ≥0.2% |
| Total bacteria | < 100 CFU/ml |
| Yeast and mold | < 10 CFU/ml |
| Hg | < 1 mg/kg |
| As | < 2 mg/kg |
| Pb | < 5 mg/kg |
| Cd | < 5 mg/kg |
Recommended use level: 1.0 - 5.0%.
Shelf life: One year.
