Vine Tea Extract

At Joywin Natural, we introduce to the global nutraceutical industry an extraordinary botanical treasure: Premium Vine Tea Extract, derived from the leaves of Ampelopsis grossedentata (commonly known as "Teng Cha" or Vine Tea). For centuries, this wild-growing vine has been revered in the mountainous regions of Southern China as a traditional herbal beverage, earning the poetic name "Immortal Vine" for its purported health-promoting properties.

Modern scientific research has validated this traditional wisdom, identifying Dihydromyricetin (DMY) as the signature flavonoid responsible for its remarkable biological activities. Our extract is meticulously standardized to contain ≥98% DMY, offering you one of the most potent and pure natural antioxidants available for formulation today.

Designed for B2B manufacturers in the dietary supplement, functional food, and beverage industries, this highly soluble, off-white to light yellow powder delivers consistent, science-backed efficacy. It empowers you to develop innovative products targeting modern health concerns-from metabolic wellness and liver support to healthy inflammatory response and antioxidant defense-with the confidence of pharmaceutical-grade purity.

Authenticity begins at the source. Our Vine Tea (Ampelopsis grossedentata) leaves are sustainably wild-crafted from the pristine, high-altitude mountain forests of Hunan and Guangxi provinces in China. These specific regions, with their unique microclimates, clean air, and mineral-rich soils, are recognized as the genuine geo-origin where the plant develops its optimal concentration of dihydromyricetin and other beneficial flavonoids.

We work in close partnership with local harvesting communities who employ time-honored, sustainable gathering practices. Harvesting occurs during the peak growing season when DMY content is highest, and strict protocols ensure the long-term viability of the wild populations. Our vertically integrated supply chain guarantees full traceability from the identified plant to our processing facility, ensuring raw material free from agricultural chemicals and environmental pollutants.

The potency of our Vine Tea Extract is defined by its exceptional concentration of targeted flavonoids:

* Dihydromyricetin (DMY) (Standardized to ≥98%): The primary bioactive marker and a doubly-hydrogenated flavonoid. It is renowned for its superior antioxidant capacity, hepatoprotective properties, and role in metabolic regulation. This high purity sets our extract apart as a premium ingredient.

* Other Synergistic Flavonoids: Includes myricetin, ampelopsin, and quercetin derivatives. These compounds work in concert with DMY, potentially enhancing its bioavailability and overall bioactivity through the "entourage effect."

* Polyphenols & Phenolic Acids: Contributing to the overall antioxidant network of the extract.

* Natural Minerals: The plant naturally accumulates beneficial minerals like selenium and zinc from its native soil.

We uphold a standard of radical transparency. Every batch is subjected to rigorous analysis via HPLC and UV-Vis spectroscopy in our in-house lab and verified by independent, third-party laboratories (ISO/IEC 17025 accredited). A detailed Certificate of Analysis (COA) accompanies every shipment.

Our extraction and purification process, conducted in our cGMP and ISO 22000 certified facility, is engineered to isolate and preserve the integrity of the heat-sensitive DMY compound:

* Raw Material Authentication & Pre-treatment: Incoming leaves are authenticated botanically and via HPLC fingerprinting. They are cleaned and shredded to increase surface area.

* Low-Temperature Dynamic Extraction: We utilize advanced low-temperature dynamic counter-current extraction with purified water and food-grade ethanol. This patented method maximizes DMY yield while preventing thermal degradation.

* Macroporous Resin Purification: The crude extract undergoes a multi-stage purification process using selective macroporous adsorption resins. This critical step removes impurities, chlorophyll, and polysaccharides, progressively concentrating the DMY content.

* Crystallization & Recrystallization: The eluent is carefully concentrated under vacuum, initiating the crystallization of highly pure DMY. Recrystallization steps are employed to achieve the pharmaceutical-grade ≥98% purity.

* Low-Temperature Drying & Milling: The DMY crystals are dried using vacuum belt drying at controlled low temperatures, then milled into a uniform, free-flowing fine powder.

* Standardization & Homogeneous Blending: The powder is blended to ensure the ≥98% DMY specification is met uniformly across the entire batch.

* Comprehensive QC & Release: The final product undergoes a full battery of tests (HPLC for assay, heavy metals, microbiology) before being released for packaging.

* Unmatched Purity: Industry-leading ≥98% Dihydromyricetin (DMY) standardization for guaranteed potency and efficacy.

* Pharmaceutical-Grade Process: Utilizes advanced purification (resin adsorption, crystallization) versus simple spray-drying, resulting in superior color, taste (mild bitter), and solubility.

* Science-Backed Bioactivity: High-purity DMY is linked in preclinical and clinical studies to specific, measurable health benefits.

* Excellent Solubility & Stability: Fine powder with high solubility in water and ethanol, ideal for liquid formulations, stick packs, and capsules. Exhibits strong shelf-life stability.

* Full Regulatory Documentation: Supported by a comprehensive Dossier including COA, TDS, MSDS, Allergen Statement, Non-GMO Declaration, and Heavy Metal Test Reports.

* B2B-Oriented Consistency: Reliable, large-scale production capacity ensures stable supply and consistent quality for your long-term product lines.

The high concentration of DMY in our extract is associated with several key mechanisms of action, supported by a growing body of peer-reviewed research:

* Potent Hepatoprotective & Liver Health: DMY is extensively studied for its ability to protect liver cells from oxidative damage, support healthy liver enzyme levels, and promote the metabolism of dietary fats. (Reference: Shen, Y., et al. "Dihydromyricetin as a functional additive to enhance hepatoprotective activity." Journal of Functional Foods, 2015.)

* Metabolic Syndrome Support: Research indicates DMY can help maintain healthy blood lipid profiles, support insulin sensitivity, and assist in weight management as part of a healthy lifestyle. (Reference: Li, H., et al. "Dihydromyricetin improves glucose and lipid metabolism." Molecular Nutrition & Food Research, 2017.)

* Superior Antioxidant & Anti-inflammatory Activity: As a flavonoid, DMY directly scavenges free radicals and has been shown to modulate key pathways (e.g., NF-κB) involved in the body's healthy inflammatory response.

* Neuroprotective Potential: Emerging studies suggest DMY may support cognitive function and neuronal health by combating oxidative stress in the brain.

* Liver & Detox Supplements: Core ingredient in capsules, tablets, or liquid shots designed for liver support and overall metabolic detoxification.

* Metabolic Health Formulations: Key component in weight management complexes, blood sugar support blends, and cardiovascular health supplements.

* Premium Functional Beverages: Ideal for clear, ready-to-drink (RTD) teas, enhanced waters, and wellness shots due to its good solubility and clean, bitter taste profile (can be effectively masked).

* Sports Nutrition: For post-workout recovery formulas targeting inflammation and oxidative stress reduction.

* Private Label & Contract Manufacturing: We provide full technical support for your branded supplement lines.

We are equipped to meet the demands of global B2B supply chains.

* Standard Packaging: 1 kg aluminum foil bag inside a cardboard drum. 5 kg, 10 kg, 25 kg drum options available.

* Custom Packaging: Available upon request (e.g., vacuum packaging for maximum stability).

* Minimum Order Quantity (MOQ): 1 kg for sample evaluation; 10 kg for production orders.

* Global Logistics: Efficient worldwide shipping via air freight (DHL/FedEx) or sea freight. All export documentation (Commercial Invoice, Packing List, Certificate of Origin, Health Certificate) is professionally prepared.

* Storage: Store in a cool, dry place (below 20°C/68°F is ideal) in a sealed container, protected from light. Shelf life: 24 months from the date of production when stored properly.

JOYWIN own a number of invention patents and certifications including NOP/JAS, BRC, FSSC, cGMP, Kosher, HALAL, ISO9001, ISO14001, ISO22000, etc.

Q1: Is Vine Tea Extract the same as Grape Seed Extract or Amur Cork Tree?
A1: No, they are botanically distinct. Vine Tea is Ampelopsis grossedentata. Its signature flavonoid, Dihydromyricetin (DMY), is structurally unique. While Grape Seed Extract contains proanthocyanidins and Amur Cork Tree contains berberine, Vine Tea Extract is prized specifically for its exceptionally high DMY content.

Q2: What is the typical dosage of DMY used in human studies?
A2: Clinical trials have used dosages ranging from 300 mg to 600 mg of pure DMY per day, often divided into two doses. For a 98% pure extract, this translates to approximately 306 mg to 612 mg of extract daily. Formulation-specific advice is available from our technical team.

Q3: Are there any known interactions or contraindications?
A3: Vine Tea Extract (DMY) is generally recognized as safe (GRAS) based on traditional use and modern toxicology studies. As with any potent bioactive, we recommend consulting a healthcare professional regarding use during pregnancy, lactation, or in conjunction with prescription medications. It is your responsibility to ensure compliance with target market regulations.

Q4: Can you provide extracts with different DMY concentrations?
A4: Yes. While our flagship product is ≥98%, we can also supply cost-effective extracts standardized to 50% or 70% DMY for applications where ultra-high purity is not critical. We also offer full-spectrum, spray-dried Vine Tea powder.

Q5: Do you offer OEM and custom formulation support?
A5: Absolutely. Our core service is B2B partnership. We offer comprehensive OEM support, including custom purity levels, blend development (e.g., Vine Tea with Milk Thistle), and private label packaging. Contact us to discuss your project specifics.

A6: Where to buy?

Q6:For the Vine Tea Extract price, just send email to contact@joywinworld.com, or submit your requirement in bottom form, we are of service at any time!

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