Description
The standardized extract of Houttuynia cordata aerial parts (yu xing cao, fishwort), containing flavonoids (quercitrin, hyperoside) and the volatile houttuynin as principal markers. Used in immune-support, respiratory-support, and traditional medicine formulations across East and Southeast Asia.
Yellow-brown to green-brown free-flowing powder with mild characteristic odor (the fresh herb has a strong fishy aroma; this is reduced in dried extract). Highly water-soluble.
We supply food-grade Houttuynia Cordata Extract from manufacturers in China holding ISO, Halal, Kosher and other certifications relevant to the product and production.
Common market grades include 4:1 to 20:1 herb-to-extract ratios (standard grades), 5 percent Total Flavonoids (standardized supplement grade), and 10 percent Total Flavonoids (premium grade).
Bulk and reduced-MOQ shipments. Batch-level COA covering total flavonoids, quercitrin content (HPLC), residual solvents, heavy metals, pesticides, and microbiology.
Introduction
Houttuynia cordata (yu xing cao, fishwort, dokudami in Japan) has been used in traditional medicine across China, Japan, Korea, and Southeast Asia for centuries for respiratory complaints, urinary tract conditions, and skin disorders. The fresh herb is also consumed as a vegetable and salad ingredient in Vietnam, Thailand, and parts of southwestern China.
Industrial production proceeds by hot-water or hydroethanolic extraction of dried aerial parts, followed by purification and spray-drying. The characteristic fishy odor of fresh material is largely lost in the dried extract.
Recognized as a permitted food ingredient in China and most Asian markets; sold as a dietary supplement in many international markets.
Modern research has identified antiviral, antibacterial, anti-inflammatory, and immunomodulatory activities for Houttuynia extract. Houttuynin, the principal aldehyde, has documented antimicrobial activity against multiple bacterial and viral targets.
Strategic positioning combines Traditional Chinese Medicine and traditional Japanese medicine applications, modern immune and respiratory-support supplements, and use in cosmetic skincare leveraging the anti-inflammatory profile.
Where it is used
- Immune-support dietary supplement formulations
- Respiratory-support and lung-health supplement products
- Traditional Chinese Medicine: yu xing cao decoctions and modern granule formats
- Functional beverages including herbal wellness teas (the fresh herb is consumed as a vegetable in Southeast Asian cuisine, providing strong food-use baseline)
- Cosmetic skincare: anti-inflammatory and acne-support formulations
- Veterinary applications in traditional animal medicine
Technical data
| Item | Specification |
|---|---|
| Appearance | Yellow-brown to green-brown free-flowing powder |
| Herb-to-extract ratio | 4:1 / 10:1 / 20:1 (grade dependent) |
| Total flavonoids | 5% / 10% (grade dependent) |
| Loss on drying | ≤ 6.0% |
| Residue on ignition | ≤ 6.0% |
| Heavy metals (as Pb) | ≤ 2 mg/kg |
| Total plate count | ≤ 10000 cfu/g |
| Source | Houttuynia cordata aerial parts |
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