Best Polygonum Cuspidatum Root Extract 98% Trans Resveratrol

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Joywin Naturals presents its premium Resveratrol Extract Powder, a high-purity phytoalexin derived from select botanical sources. Resveratrol, a powerful polyphenol, has become one of the most extensively studied molecules in nutritional science, renowned for its potent antioxidant properties and its potential to activate cellular pathways associated with healthy aging.

As an innovation-driven biotechnology company with over a decade of expertise in botanical extraction and purification, Joywin delivers a standardized, bio-enhancing ingredient. Our Resveratrol is meticulously processed to guarantee a high concentration of the active trans-Resveratrol isomer, providing formulators with a consistent, science-backed foundation for premium nutraceuticals, cosmeceuticals, and functional foods targeting the growing healthy aging market.

Resveratrol is produced by plants as a defense mechanism. We source our raw materials from two primary, high-quality sources to ensure supply chain robustness and application flexibility:

* Primary Source: Polygonum cuspidatum (Japanese Knotweed) Extract. This is the most abundant and commercially viable source for high-purity trans-Resveratrol. We source our Polygonum cuspidatum roots from sustainable, cultivated farms in pristine regions of China, known for their high active content. The roots are harvested at their peak potency.

* Alternative Source: Vitis vinifera (Grape) Skin Extract. For clients seeking a resveratrol source derived from grapes, often associated with the "French Paradox," we offer an extract sourced from certified-organic grape skins, a byproduct of winemaking, supporting a circular economy.

* Full Traceability: Regardless of the source, our supply chain is fully documented and GACP-compliant, ensuring transparency from farm or vineyard to the final powder.

The biological activity of Resveratrol is stereospecific-meaning its molecular shape is critical. Our extract is defined by its concentration of the active form.

* Core Component: Standardized Trans-Resveratrol. We offer two primary specifications to meet diverse formulation needs and price points:

- High-Purity Grade: ≥ 98% Trans-Resveratrol (by HPLC), ideal for encapsulation in dietary supplements where maximum potency per dose is required.

- Concentrated Grade: ≥ 50% Trans-Resveratrol (by HPLC), a cost-effective option containing a natural spectrum of other Polygonum cuspidatum compounds like emodin and polydatin, suitable for broader formulations.

* Isomeric Purity: Our 98% specification guarantees minimal presence of the less bioactive cis-Resveratrol isomer, ensuring you receive the molecule with the proven biological effects.

* Natural Co-Actives (in 50% grade): The 50% extract retains a profile of other naturally occurring anthraquinones and stilbenes from the source plant, which may contribute to synergistic effects.

Producing high-purity trans-Resveratrol requires sophisticated technology. Our process is designed for both yield and the preservation of molecular integrity.

1.Raw Material Verification & Milling: Incoming Polygonum cuspidatum roots or grape skins are rigorously identified and tested. They are then cleaned and milled to a uniform particle size.

2.Solvent Extraction (for Concentrates): For our 50% extract, a multi-stage food-grade ethanol/water extraction is used to efficiently draw out resveratrol and associated polyphenols from the plant matrix.

3.High-Purity Purification (for 98% Grade): To achieve 98% purity, the crude extract undergoes a series of advanced chromatographic and/or crystallization steps. These techniques selectively isolate trans-Resveratrol from other similar compounds like polydatin and emodin, yielding the pure, crystalline active molecule.

4.Gentle Concentration & Drying: All liquid fractions are concentrated under vacuum at low temperatures to prevent thermal degradation. The final product is either spray-dried (for 50% grade) or gently milled from crystals (for 98% grade) into a fine, free-flowing powder.

5.Screening & Homogenization: The final powder is meticulously screened and blended to guarantee absolute batch-to-batch uniformity.

Quality at Joywin is embedded in every process. As a world-leading manufacturer of organic Inulin and a top-four global Bromelain producer, we apply the same rigorous, multi-tiered QC system to our Resveratrol extract, validated by our extensive certifications.

* Certified Systems: Our facilities operate under Integrated Management Systems certified to ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 22000 (Food Safety Management) .

* Product Certifications: We offer Resveratrol that meets strict religious and manufacturing standards, including Kosher, HALAL, and cGMP compliance.

* Comprehensive Testing Protocol:

- Identity: Confirmed via HPLC retention time and UV spectra against a certified reference standard.

- Purity & Potency: Accurate quantification of trans-Resveratrol using validated HPLC methods, with strict control of residual solvents per USP/EP standards.

- Safety: ICP-MS analysis for heavy metals and full microbiological profiling per AOAC methods.

- Stability: Ongoing real-time and accelerated stability studies to establish and verify a 24-month shelf life.

* Third-Party Verification: Our internal results are regularly cross-validated by sending samples to accredited, independent laboratories (e.g., SGS, Eurofins).

* Highest Purity Available: Our 98% grade offers one of the highest concentrations of active trans-Resveratrol on the market, ensuring maximum efficacy in premium formulations.

* Standardized Potency Across Grades: Guaranteed minimum assay levels (50% or 98%) provide predictable, reliable performance in your finished products.

* Clean & Safe Profile: Produced with food-grade solvents, with residual solvents strictly controlled. Non-GMO, allergen-free, and BSE/TSE free.

* Superior Handling Properties: The fine, free-flowing powder (micronized options available) is designed for ease of use, blending uniformly into capsules, tablets, and powder blends, and dispersing well in liquid formulations.

* Consistent Quality at Scale: Leverage Joywin's robust manufacturing infrastructure and vertically integrated supply chain for a reliable, high-volume ingredient source.

Resveratrol Extract Powder is one of the most celebrated molecules in modern nutritional science, with its effects documented in thousands of peer-reviewed studies. Its primary mechanisms of action are well-elucidated.

* Primary Mechanisms of Action:

1.Sirtuin Activation (Caloric Restriction Mimetic): Resveratrol is a potent activator of SIRT1, a class of proteins (sirtuins) linked to cellular repair, stress resistance, and longevity. This is the primary pathway through which it is believed to mimic some benefits of caloric restriction.

2.Potent Antioxidant Activity: It directly scavenges free radicals and, importantly, boosts the body's own endogenous antioxidant enzymes (like superoxide dismutase and catalase).

3.Anti-Inflammatory Modulation: Resveratrol inhibits key pro-inflammatory pathways, including NF-κB and COX-2, helping to modulate the body's inflammatory response at a cellular level.

* Key Scientific Findings & Authoritative Support:

- Cardiovascular Health: Numerous studies, including research published in journals like Science and Nature, have shown Resveratrol's potential to support healthy endothelial function, promote healthy blood flow, and protect LDL cholesterol from oxidation.

- Neuroprotection & Cognitive Health: Preclinical research suggests Resveratrol may help protect neurons from damage and support cognitive function, contributing to healthy brain aging.

- Longevity & Healthy Aging: The activation of sirtuins is directly linked to pathways that influence lifespan and healthspan in model organisms, making Resveratrol a cornerstone ingredient in the longevity space.

- Skin Health: Clinical studies have demonstrated its ability to protect skin from environmental stressors and support collagen production, reducing the appearance of fine lines and wrinkles.

We can provide comprehensive documentation, including summaries of key clinical studies and mechanistic research, to support your product development and marketing claim substantiation.

We ensure your high-value Resveratrol arrives in perfect condition, on time, wherever you are.

* Packaging Options:

- Standard Export (98% Grade): Double food-grade polyethylene bags inside a sealed, moisture-proof fiber drum (Net weight: 1kg, 5kg, or 25kg / drum). The 1kg option is ideal for R&D and small-batch production.

- Standard Export (50% Grade): Typically packed in 25kg fiber drums.

- R&D / Sample Size: Available in heat-sealed, food-grade foil bags (100g, 500g).

- Custom Packaging: We can accommodate requests for specific inner packaging materials or sizes for volume partners.

* Logistics Expertise:

- Air Freight: Fast, reliable shipping for smaller, high-value orders or urgent production schedules.

- Sea Freight (FCL/LCL): Cost-effective solution for bulk orders. We manage all documentation.

- International Express (DHL/FedEx/UPS): Ideal for rapid delivery of samples and small trial orders.

* Storage & Shelf Life: Store in a cool, dry place away from direct sunlight and high temperatures. Keep container tightly sealed. Under recommended conditions, the product maintains its quality for 24 months from the date of manufacture.

As customer focus has never been so important for today's enterprises, we believe that only a customer-focused company will win renewed loyalty and competitive advantage.

At JOYWIN, Our team of professionals is committed to providing superior and personalized service to meet all your needs.

Q1: What is the difference between trans-Resveratrol and cis-Resveratrol? Why is trans-Resveratrol important?
A1: Resveratrol exists in two forms (isomers): trans and cis. Trans-Resveratrol is the biologically active and stable form found naturally in plants. It is the isomer responsible for the majority of health benefits documented in scientific studies, including sirtuin activation. Cis-Resveratrol is considered far less bioactive. Our 98% extract is specifically standardized for high trans-Resveratrol content, guaranteeing you are formulating with the active molecule.

Q2: Can you provide samples and a Certificate of Analysis (COA) for qualification?
A2: Absolutely. We strongly encourage all B2B clients to qualify our premium ingredients. We can provide a representative COA immediately. Free samples (typically 50-100g for the 98% grade) are available upon request; you only need to cover the shipping cost. Please contact our sales team.

Q3: What is the difference between your 50% and 98% Resveratrol extracts? Which one should I choose?
A3: The choice depends on your product goals.

* The 98% Trans-Resveratrol is a highly purified, concentrated active molecule. It is ideal for premium supplements where you want to deliver a specific, high dose of the pure compound in a small capsule or tablet.

* The 50% extract is a concentrated, but not fully purified, extract. It contains a broader spectrum of compounds from the source plant (like emodin and polydatin from Polygonum cuspidatum). It is a cost-effective option for formulas where a whole-herb profile is desired or where a slightly lower dose of resveratrol is acceptable.

Q4: Do you offer micronized Resveratrol for improved bioavailability?
A4: Yes, we understand bioavailability is a key consideration for Resveratrol. We can offer micronized versions of our Resveratrol powder with a significantly reduced particle size, which can improve surface area and potentially enhance absorption. Please inquire about this option.

Q5: Is Joywin a manufacturer, and what certifications do you hold for this product?
A5: Yes, Joywin is a vertically integrated manufacturer, not a trading company. Founded in 2013 as an innovation-driven biotechnology company, we specialize in botanical extracts and enzymes. Our Resveratrol is manufactured in our own facilities, which are certified to ISO 9001, ISO 14001, ISO 22000, and cGMP standards. The product is available with Kosher and HALAL certifications. This manufacturing pedigree, built on our position as the world's largest manufacturer of organic Inulin and one of the top four Bromelain producers globally, ensures full control over quality, cost, and supply chain for our Resveratrol extract.

Q6：Where & how can I place an order on Resveratrol Extract Powder?

A：You can click the inquiry or send us an e-mail to contact@joywinworld.com

We produce quality Best Polygonum Cuspidatum Root Extract 98% Trans Resveratrol, creating social wealth and achieving common prosperity. Our company will build a high-tech talent highland, improve the ability of technological innovation, and establish a good brand image. So as to better ensure the quality of products and then get the unanimous praise of the majority of users.

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