Natural Dried Giant Knotweed (Polygonum Cuspidatum) Chinese Herbal Medicine

Product Overview

Premium natural dried Giant Knotweed (Polygonum cuspidatum), also known as Hu Zhang in traditional Chinese medicine. This herb is one of the richest natural sources of trans-resveratrol, a powerful antioxidant compound. Harvested from our certified bases and processed to preserve maximum active compound content.

Botanical Characteristics

Polygonum cuspidatum is a perennial herbaceous plant belonging to the Polygonaceae family. It features hollow jointed stems reaching up to 3 meters, with broad ovate leaves and small white to pink flowers. The underground rhizome is the main medicinal part, characterized by a yellow-brown exterior and yellow interior cross-section.

Efficacy & Benefits Based on Traditional Chinese Medicine Theory

• Joint Health Support: Traditionally used to dispel wind-dampness and relieve joint pain and rheumatism
• Cardiovascular Protection: Resveratrol content provides antioxidant support for heart and blood vessel health
• Anti-aging Properties: Rich in natural antioxidants that combat oxidative stress and cellular aging
• Liver Protection: Supports liver function and helps protect against hepatic damage
• Anti-inflammatory Effects: Contains emodin and polydatin with scientifically validated anti-inflammatory activity

Quality Specifications

• Latin Name: Polygonum cuspidatum Sieb. et Zucc.
• Part Used: Dried Rhizome and Root
• Appearance: Brownish exterior, yellow cross-section
• Trans-Resveratrol: ≥ 1.0% (HPLC tested)
• Form Available: Whole, Sliced, Powder (80-120 mesh)
• Moisture Content: ≤ 12%
• Shelf Life: 24 months under proper storage

Applications

Suitable for dietary supplements, functional foods, cosmetic ingredients, pharmaceutical intermediates, and nutraceutical products targeting joint health and anti-aging markets.

Certifications: ISO9001, HACCP, FDA Registered, HALAL Certified

Packaging: 1kg, 5kg, 10kg, 25kg food-grade PE bags inside woven bags, or custom packaging as per customer requirements.