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Dog's Ear Extract

Updated: 2026-08-05

Overview

Houttuynia Cordata Extract is derived from the leaves and stems of the Houttuynia cordata plant, a perennial herb native to Southeast Asia. Known for its distinct fishy odor, this plant has been used in traditional Chinese and Japanese medicine for centuries. The extract is rich in flavonoids, alkaloids, and polyphenols, which contribute to its therapeutic properties. Modern extraction techniques, such as supercritical CO2 extraction and ethanol extraction, are employed to obtain high-quality extracts. These methods ensure the preservation of bioactive compounds, making the extract suitable for various industrial applications.

Physical and Chemical Properties

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Houttuynia Cordata Extract is typically available as a yellow to brown powder or liquid, depending on the extraction method. It has a characteristic earthy odor and is soluble in water and alcohol. The extract contains a complex mixture of bioactive compounds, including quercetin, rutin, and houttuynin. The density of the extract varies between 0.8-1.2 g/cm³, depending on its form and concentration. While the exact molecular formula and weight are not applicable due to its complex composition, the extract is known for its stability under proper storage conditions.

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Main Applications

In the pharmaceutical industry, Houttuynia Cordata Extract is used for its antimicrobial and anti-inflammatory properties. It is a common ingredient in herbal remedies for respiratory infections, skin conditions, and digestive disorders. The cosmetics industry values the extract for its antioxidant effects, which help combat skin aging and improve complexion. It is often included in skincare products like creams, serums, and masks. Additionally, the food industry uses it as a natural preservative and flavor enhancer, particularly in functional foods and beverages.

Safety and Storage

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Houttuynia Cordata Extract is generally considered safe for use in regulated amounts. However, individuals with allergies to plants in the Saururaceae family should exercise caution. Skin patch tests are recommended before topical application. Proper storage is essential to maintain the extract's efficacy. It should be kept in a cool, dry place, away from direct sunlight and moisture. Sealed containers are preferable to prevent oxidation and contamination. Shelf life typically ranges from 12 to 24 months, depending on the storage conditions.

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B2B Procurement Guide

When sourcing Houttuynia Cordata Extract, B2B buyers should prioritize suppliers who provide certificates of analysis (COA) to verify purity and composition. Organic and non-GMO certifications may also be relevant for certain markets. Price varies based on extraction method, concentration, and supplier reputation. Bulk purchases often attract discounts, but buyers should ensure consistent quality across batches. It's advisable to request samples for testing before committing to large orders. Additionally, compliance with regional regulations, such as FDA or EU standards, should be confirmed.

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