We are a professional company mainly deal with herbal extract, steriods and phamraceuticals. We could provide Series of Polygonum cuspidatum at competitive prices. Details as follows:
Polydatin HPLC50%, HPLC90%, HPLC99%
Resveratrol HPLC10%, 20%, 25%, 50%, 60%, 70%, 80%, 90%, 95%, 98%
Emodin HPLC50%, HPLC95%[...]