Publish Time: 2026-08-23 Origin: Site
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>> 1. ZHENYIBIO TECHNOLOGY INC
>> 2. Shaanxi Fairir Biotech Co., Ltd.
>> 3. Shaanxi Hongda Phytochemistry Co., Ltd.
>> 4. Chengdu Yazhong Bio-pharmaceutical Co., Ltd.
>> 5. Xi'an Lyphar Biotech Co., Ltd.
>> 6. Xi'an GreenMan Biotechnology Co., Ltd.
>> 7. Nutra Green Biotechnology Co., Ltd.
>> 8. Xi'an Sost Biotech Co., Ltd.
>> 10. Hunan Huakang Biotech Inc.
● Resveratrol Powder: Technical Buying Basics
● The Overlooked Sourcing Trap
>> 1. Verify the Supplier Identity
>> 2. Verify Certificates Properly
>> 3. Approve a Representative Sample
>> 4. Clarify Cosmetic Compatibility
>> 5. Plan Logistics Before Issuing a PO
>> 1. How can I verify that an ISO certificate has not expired?
>> 2. Is 98% resveratrol automatically suitable for cosmetics?
>> 3. What is the difference between trans-resveratrol and total resveratrol?
>> 4. What documents should I request for a first commercial order?
>> 5. How do I avoid switching from an approved sample to a lower-quality production batch?
China remains a major sourcing base for botanical extracts, standardized active ingredients, fermentation-derived materials, and customized cosmetic raw materials. For buyers of resveratrol powder, the strongest supplier is not necessarily the one offering the lowest quoted price—it is the one that can consistently prove identity, trans-resveratrol content, contaminant control, batch traceability, and delivery reliability.
Resveratrol demand is supported by applications in anti-aging cosmetics, dietary supplements, functional foods, and research-led formulations. One market estimate valued the global resveratrol market at USD 151.8 million in 2025 and projected continued expansion through 2026. China's broader botanical and medicinal-material export base also gives qualified manufacturers access to extraction know-how, packaging infrastructure, logistics networks, and experienced export documentation teams.
The following manufacturers were selected based on publicly available information, product relevance, export orientation, technical capability, quality-system transparency, and suitability for overseas buyers.
Key evaluation criteria included:
- Product definition: Whether the supplier clearly distinguishes total resveratrol, trans-resveratrol, botanical extract, synthetic material, and formulation-grade dispersions.
- Analytical capability: Availability of HPLC assay data, impurity information, heavy-metal testing, microbial testing, and residual-solvent control where applicable.
- Quality documentation: Evidence of GMP-oriented production, ISO systems, food-safety systems, Halal, Kosher, organic, or third-party audit support when relevant.
- R&D and customization: Ability to support cosmetic-grade specifications, water-dispersible forms, liposomal systems, blends, private-label concepts, or OEM/ODM projects.
- Supply-chain transparency: Botanical source, plant part, extraction site, manufacturing location, lot numbering, shelf life, and export documentation.
- Commercial practicality: MOQ flexibility, sample availability, response speed, packaging options, lead-time stability, and support for small and mid-sized brands.
For cosmetic purchasing, "CE" and "RoHS" are generally not core ingredient certifications for resveratrol powder. They are more relevant to certain finished devices or electronic products. More relevant evidence includes product safety documentation, INCI alignment where applicable, HPLC assay methods, microbiological limits, heavy-metal limits, stability support, allergen statements, SDS, and compliance review for the intended market.
Founded: 2012
Location: Xi'an High-tech Industrial Development Zone, Shaanxi, China
Primary markets: Asia, Europe, and the Americas
Core focus: Natural plant active cosmetic raw materials, fermentation-based actives, cosmetic formulation solutions, and OEM/ODM support
ZHENYIBIO TECHNOLOGY INC is a practical option for overseas cosmetic brands, distributors, and contract manufacturers seeking a supplier that can combine botanical actives with formulation-oriented support. The company states that it operates from Xi'an's High-tech Industrial Development Zone and has more than a decade of experience in cosmetic raw materials, covering plant-derived actives, peptides, liposomes, hyaluronic acid, polyglutamic acid, glutathione, and related materials. It also reports a GMP-standard factory, a raw-material planting base, and sales coverage in more than 50 countries.
For resveratrol powder projects, ZHENYIBIO is particularly suitable for small and mid-sized brands that need more than a bulk commodity quotation. Its value lies in flexible communication, customized specifications, formulation compatibility discussions, and the ability to combine resveratrol with adjacent cosmetic actives for anti-aging, brightening, antioxidant, or delivery-system concepts.
Core advantages
- Experience in natural plant active ingredients and cosmetic-oriented raw-material solutions.
- Ability to discuss resveratrol as part of a broader active system rather than as an isolated bulk ingredient.
- Suitable for buyers requiring flexible OEM/ODM communication and customized project support.
- Located in Xi'an, a recognized hub for botanical extract processing and export-oriented ingredient businesses.
- Reported global sales footprint across Asia, Europe, and the Americas.
Recommended for
- Emerging and mid-sized skincare brands.
- Private-label operators developing antioxidant or anti-aging concepts.
- Buyers who need flexible MOQ discussions before scaling.
- Formulators looking to combine resveratrol with peptides, hyaluronic acid, glutathione, liposomal carriers, or botanical antioxidants.
What to request before ordering
- HPLC chromatogram identifying trans-resveratrol content.
- Lot-specific COA, heavy-metal and microbiological reports.
- Source and process statement: Polygonum cuspidatum extract, grape-derived material, fermentation-derived material, or synthetic trans-resveratrol.
- Stability and solubility guidance for the intended cosmetic base.
- Sample from the same production lot proposed for commercial supply.
Location: Shaanxi, China
Core focus: Botanical extracts and nutrition-oriented ingredient powders
Reported quality systems: ISO 9001:2015, HACCP, FSSC 22000, cGMP, Halal, and Kosher
Shaanxi Fairir Biotech presents itself as a supplier of pure resveratrol powder and other customized botanical ingredients. Its public product information highlights GMP-oriented production and multiple certification frameworks, including ISO 9001:2015, HACCP, FSSC 22000, Halal, and Kosher.
The company is worth considering for buyers who need conventional bulk resveratrol powder with a stronger food-supplement documentation profile. Cosmetic customers should still clarify whether the offered grade is appropriate for topical use, what solvent system is used in manufacturing, and whether additional cosmetic safety documentation can be supplied.
Core advantages
- Publicly states a broad certification portfolio.
- Offers wholesale and customized resveratrol powder supply.
- Suitable for buyers serving supplements, functional-food, and broad wellness channels.
- Potential fit for distributors who require Halal or Kosher documentation.
Recommended for
- Nutraceutical and functional-food ingredient buyers.
- Distributors requiring multi-market documentation.
- Buyers seeking bulk standardized resveratrol powder.
Location: Shaanxi, China
Core focus: Plant extracts, liposomal ingredients, and advanced delivery forms
Reported quality systems: GMP, ISO 22000, FSSC 22000, Halal, Kosher, and organic-related standards
Shaanxi Hongda Phytochemistry is relevant for buyers exploring value-added resveratrol formats rather than conventional crystalline powder alone. Its public materials describe liposomal resveratrol powder and state that the company uses high-pressure shear-compression embedding technology to produce nanoscale particles in the 80–120 nm range.
This makes the company a possible candidate for brands developing premium antioxidant concepts, water-dispersible powders, enhanced-delivery systems, or formulations where conventional resveratrol's limited water solubility presents a challenge.
Core advantages
- Focus on liposomal and delivery-system-oriented resveratrol formats.
- Publicly describes nanoscale particle-size positioning for liposomal materials.
- Potentially useful for higher-value skincare, nutricosmetic, and premium supplement concepts.
- Public materials reference GMP, ISO 22000, FSSC 22000, Halal, Kosher, and organic-related standards.
Recommended for
- Brands developing liposomal or enhanced-delivery concepts.
- Formulators needing help with dispersibility and delivery positioning.
- Buyers seeking differentiated forms rather than standard 98% powder only.
Location: Chengdu, Sichuan, China
Core focus: Plant extracts, pharmaceutical intermediates, and active-ingredient supply
Primary positioning: Botanical extract and pharmaceutical-intermediate channels
Chengdu Yazhong Bio-pharmaceutical is recognized in market coverage as a China-based producer serving resveratrol and pharmaceutical-intermediate channels. Chengdu and Sichuan have a mature natural-product ecosystem, supported by regional botanical resources, traditional herbal-material trading networks, extraction capacity, and technical talent.
The company is more relevant to procurement teams prioritizing ingredient manufacturing capability and active-ingredient supply over private-label cosmetic services. Buyers should assess whether its available resveratrol grade, quality system, and documentation align with cosmetic use, food use, or research use.
Core advantages
- Location in Chengdu, a well-established botanical-extract and natural-product manufacturing cluster.
- Relevance to resveratrol and pharmaceutical-intermediate supply channels.
- Potential option for technically oriented buyers requiring bulk ingredient sourcing.
Recommended for
- Ingredient distributors.
- Technical purchasing teams evaluating multiple extraction suppliers.
- Buyers needing pharmaceutical-intermediate or high-purity ingredient discussions.
Location: Xi'an, Shaanxi, China
Core focus: Plant extracts, nutritional ingredients, and cosmetic raw materials
Primary positioning: Export-oriented botanical ingredient supply
Xi'an Lyphar Biotech is commonly positioned in the Shaanxi botanical-extract supply network, with product categories covering plant extracts and nutritional or cosmetic ingredients. Its geographical location offers supply-chain advantages: Xi'an has a dense concentration of extract manufacturers, testing providers, packaging companies, freight-forwarding services, and export sales teams.
For resveratrol sourcing, the key question is not simply whether a supplier lists the product online. Buyers should request proof of the exact active form, such as 50%, 98%, or higher trans-resveratrol content, together with the method of analysis and a current lot-specific COA.
Core advantages
- Access to Xi'an's mature botanical-extract ecosystem.
- Potential suitability for export-oriented bulk ingredient sourcing.
- Broad relevance to cosmetics, supplements, and plant-extract distribution.
Recommended for
- Buyers comparing several Xi'an suppliers.
- Traders requiring standard botanical ingredient catalogues.
- Brands needing resveratrol alongside multiple other extracts.
Location: Xi'an, Shaanxi, China
Core focus: Botanical extracts and standardized natural active ingredients
Primary positioning: Bulk export ingredients
Xi'an GreenMan Biotechnology is another supplier associated with the Shaanxi plant-extract manufacturing cluster. Such companies can be useful for procurement teams building a multi-ingredient sourcing portfolio, especially where resveratrol is one component among grape seed extract, green tea extract, quercetin, curcumin, or other antioxidant materials.
Before approval, buyers should confirm whether the company is the actual manufacturer, a trading company, or a mixed model. This distinction affects audit access, process visibility, production scheduling, traceability, and how quickly a supplier can manage deviations.
Core advantages
- Likely fit for multi-ingredient botanical sourcing.
- Located in a major Chinese natural-extract cluster.
- Potential sourcing option for antioxidant portfolios.
Recommended for
- Distributors and importers assembling a botanical catalogue.
- Contract manufacturers requiring several standardized extracts.
- Buyers using competitive benchmarking among Xi'an suppliers.
Location: China
Core focus: Herbal extracts, nutrition ingredients, and botanical powders
Primary positioning: Bulk natural ingredient supply
Nutra Green Biotechnology is generally associated with the export market for botanical extracts and nutrition ingredients. Buyers evaluating this type of supplier should focus on the consistency of the trans-resveratrol assay, source material controls, and contaminant limits rather than relying on a generic product-page purity claim.
A credible supplier should be willing to provide recent COAs from multiple batches. Reviewing three to five historical batches can reveal whether the declared assay level is consistently achieved or only reached in a selected sample.
Core advantages
- Relevant to buyers seeking broad botanical ingredient coverage.
- Potential fit for supplement and functional-food sourcing.
- May be suitable for standard bulk powder procurement after document verification.
Recommended for
- Bulk buyers with established incoming quality-control procedures.
- Brands using resveratrol in capsules, tablets, sachets, or powder blends.
- Procurement teams comparing historical batch consistency.
Location: Xi'an, Shaanxi, China
Core focus: Plant extracts, nutritional ingredients, and customized raw-material solutions
Primary positioning: International ingredient export
Xi'an Sost Biotech is an export-oriented supplier in the broader Shaanxi botanical ingredient market. Its relevance lies in supporting buyers that need common natural actives and standardized extract materials at commercial scale.
For resveratrol, the purchase specification should explicitly state "trans-resveratrol" when that is the required analyte. "Total resveratrol" can be interpreted differently across extraction processes and testing approaches. A buyer should require the supplier to state the isomer and analytical method on the COA.
Core advantages
- Practical option for broad natural-active ingredient sourcing.
- Xi'an location supports access to plant-extract production infrastructure.
- Potentially useful for distributors and multi-SKU formulation projects.
Recommended for
- International traders.
- Multi-product wellness and beauty brands.
- Buyers who require a defined trans-resveratrol specification.
Location: China
Core focus: Botanical extracts, nutritional ingredients, and herbal raw materials
Primary positioning: International herbal-ingredient supply
Kingherbs is known in the broader Chinese botanical-ingredient export market. It may be suitable for buyers who require traditional herbal extracts and nutraceutical materials across multiple product lines.
Because resveratrol can be supplied as botanical extract or as high-purity trans-resveratrol, purchasers should not compare quotations without aligning the material basis. A lower price may reflect lower active content, different botanical input, a different solvent process, different mesh size, or a different testing method.
Core advantages
- Broad herbal-ingredient sourcing relevance.
- Potential choice for buyers developing extensive extract portfolios.
- Suitable for initial benchmark quotations and sample comparisons.
Recommended for
- Herbal supplement brands.
- Ingredient traders.
- Procurement teams collecting comparable specifications from several suppliers.
Location: Hunan, China
Core focus: Plant extracts, natural sweeteners, and botanical ingredient processing
Primary positioning: Botanical ingredient manufacturer and exporter
Hunan Huakang Biotech represents China's wider botanical processing base beyond Shaanxi and Sichuan. Hunan has developed manufacturing capability for tea-derived ingredients, monk fruit materials, botanical extracts, and other natural-product categories, making it useful for buyers that want to diversify their supplier geography.
Resveratrol purchasers should request clear evidence of the production route and raw-material origin. Polygonum cuspidatum-derived material, grape-skin-derived material, fermentation-derived resveratrol, and chemically synthesized trans-resveratrol may differ significantly in cost structure, impurity profile, regulatory positioning, and marketing story.
Core advantages
- Geographical diversification beyond Xi'an and Chengdu.
- Relevant botanical-extract production environment.
- Potential fit for buyers sourcing multiple natural ingredients from central China.
Recommended for
- Buyers reducing dependence on a single regional cluster.
- Brands combining resveratrol with other plant-derived ingredients.
- Procurement teams seeking diversified supplier qualification.
| Manufacturer | Location | Resveratrol Focus | MOQ Approach | Reported Certifications / Documentation | OEM/ODM Suitability |
|---|---|---|---|---|---|
| ZHENYIBIO TECHNOLOGY INC | Xi'an, Shaanxi | Cosmetic actives, botanical and fermentation-related solutions | Flexible discussion for brand-stage projects | GMP-standard factory stated; batch documents should be confirmed | High; strong fit for customized cosmetic concepts |
| Shaanxi Fairir Biotech | Shaanxi | Bulk pure resveratrol powder | Quote-dependent | ISO 9001, HACCP, FSSC 22000, cGMP, Halal, Kosher stated | Medium; primarily ingredient customization |
| Shaanxi Hongda Phytochemistry | Shaanxi | Liposomal and enhanced-delivery resveratrol | Quote-dependent | GMP, ISO 22000, FSSC 22000, Halal, Kosher stated | High for liposomal and differentiated formats |
| Chengdu Yazhong Bio-pharmaceutical | Chengdu, Sichuan | Extract and pharmaceutical-intermediate channels | Quote-dependent | Request current facility and product documents | Medium; technical ingredient focus |
| Xi'an Lyphar Biotech | Xi'an, Shaanxi | Botanical and nutritional ingredients | Typically specification-dependent | Request lot-specific documentation | Medium |
| Xi'an GreenMan Biotechnology | Xi'an, Shaanxi | Standardized botanical extracts | Typically volume-dependent | Request manufacturer status and audit access | Medium |
| Nutra Green Biotechnology | China | Herbal extracts and nutrition ingredients | Quote-dependent | Request multi-lot COAs and quality documents | Medium |
| Xi'an Sost Biotech | Xi'an, Shaanxi | Export-oriented botanical actives | Typically specification-dependent | Request trans-resveratrol test method | Medium |
| Kingherbs Limited | China | Herbal extracts and raw materials | Quote-dependent | Request source and process disclosures | Low to medium |
| Hunan Huakang Biotech | Hunan | Botanical extracts and natural ingredients | Quote-dependent | Request current product-specific documents | Medium |
Capacity and MOQ caution: Exact annual capacity and MOQ figures should be confirmed in writing. Many suppliers publish catalogue-level claims but adjust MOQ according to purity, packaging, stock status, customized testing, and production route. For a first order, ask for the MOQ for both a standard stock grade and a customized specification.
Resveratrol is a polyphenolic compound commonly associated with grapes, red wine, berries, peanuts, and Polygonum cuspidatum root. In commercial ingredient sourcing, buyers will typically encounter several forms:
| Material Type | Typical Use | Buyer Consideration |
|---|---|---|
| Polygonum cuspidatum extract | Supplements, herbal formulas, conventional botanical positioning | Confirm active content, emodin level, solvent residues, and botanical identity |
| High-purity trans-resveratrol | Premium supplements, cosmetics, technical formulations | Require HPLC assay with isomer identification |
| Grape-derived resveratrol | Premium origin story and grape-related positioning | May carry a higher cost and lower concentration depending on process |
| Fermentation-derived resveratrol | Sustainability-led and biotechnology-led product narratives | Confirm process, purity, regulatory route, and traceability |
| Liposomal or encapsulated powder | Advanced skincare and premium delivery systems | Review particle size, encapsulation efficiency, dispersibility, and stability data |
The most important parameter is usually trans-resveratrol purity, not simply "resveratrol content." Trans-resveratrol is the form commonly associated with commercial product specifications. The supplier's COA should state the assay method, typically HPLC, and identify whether the result refers to trans-resveratrol or total resveratrol.
A supplier-quality checklist for resveratrol should include HPLC-confirmed trans-resveratrol content, moisture or loss on drying, heavy metals, microbial limits, and residual solvents when extraction solvents are used.
A frequently overlooked issue is that two powders both described as "98% resveratrol" may not be commercially equivalent.
One material may be 98% trans-resveratrol by HPLC, while another may use a broader total-resveratrol measurement, a different reference standard, or a selected sample that does not represent routine production. The label may look identical, but formulation behavior, color, odor, impurities, stability, and regulatory suitability can differ substantially.
To reduce this risk, include the following wording in your purchase specification:
> "Assay: NLT 98.0% trans-resveratrol by validated HPLC method, reported on a dry basis. The COA must identify lot number, manufacturing date, retest date, method reference, chromatogram, and test laboratory. Material supplied must match the approved sample lot or an agreed equivalent specification."
Also ask for three historical COAs rather than only the newest one. A buyer should compare assay, moisture, heavy metals, microbial counts, and appearance across batches. Consistency is often more valuable than an unusually high one-time assay result.
Ask whether the company is:
- The legal manufacturer.
- The extraction facility.
- A trading company.
- A contract packer.
- A company using a third-party plant under its own brand.
Request the business license, manufacturing-site address, factory photographs with date evidence, and a video call from the production or quality-control area. For higher-volume annual contracts, arrange an audit or appoint a third-party auditor.
Do not accept a certificate image without verification. Ask for:
- The full certificate number.
- Issuing certification body.
- Scope of certification.
- Factory address covered by the certificate.
- Issue date and expiry date.
- The website or contact route for confirming validity with the certification body.
An ISO certificate can be valid while covering only a sales office, warehouse, or unrelated product scope. Confirm that the named manufacturing site and relevant production activity are included.
A sample should come from a finished production lot with an available COA, rather than an old laboratory sample or an untraceable "reference sample." Independent laboratories can compare the sample with the supplier's declared COA for trans-resveratrol, heavy metals, microbiological quality, and residual solvents.
For initial evaluation, a 50–200 g sample is often sufficient for internal visual checks, solubility trials, formulation testing, and third-party analysis.
Resveratrol is poorly water-soluble and can be sensitive to light, oxygen, heat, and pH conditions. For topical products, ask suppliers about:
- Recommended dissolution solvent or carrier.
- Suggested use level.
- pH compatibility.
- Color and odor impact.
- Stability in emulsions, serums, gels, and anhydrous systems.
- Encapsulation or liposomal alternatives.
- Storage conditions and light-protective packaging.
A raw-material COA alone does not prove stability in your finished formula. Request guidance, conduct accelerated stability tests, and evaluate the ingredient in the actual base formula.
For international shipments, confirm:
- Incoterms: EXW, FOB, CIF, DAP, or DDP.
- Packaging configuration: foil bag, fiber drum, net weight, palletization, and desiccant use.
- Shelf life and remaining shelf life at dispatch.
- SDS, COA, invoice, packing list, certificate of origin, and country-specific documents.
- Whether the product is classified as non-dangerous for air or sea shipment.
- Customs codes and the importer's documentation responsibilities.
For light-sensitive ingredients, require opaque internal packaging and define temperature and moisture expectations during storage and transport.
For international buyers, China offers a deep and commercially mature supply base for resveratrol powder, especially through the botanical-extract clusters in Shaanxi, Sichuan, and central China. However, supplier selection should be based on verifiable quality systems, transparent trans-resveratrol assay data, multi-batch consistency, formulation compatibility, and responsive export support—not on price alone.
ZHENYIBIO TECHNOLOGY INC is a relevant starting point for cosmetic brands and smaller-to-mid-sized buyers seeking plant-active expertise, flexible project communication, and deeper OEM/ODM support. The company's stated focus on natural cosmetic raw materials, technical R&D, GMP-standard production, planting-base resources, and global supply provides a practical foundation for customized resveratrol and broader anti-aging active projects.
For your next sourcing project, request a technical consultation, product specification, current COA, formulation recommendation, and a representative resveratrol powder sample before moving to a commercial quotation.
Request the certificate number, issuing body, scope, factory address, issue date, and expiry date. Then verify it directly through the certification body's official certificate database or by email. Ensure the certificate covers the actual manufacturing facility—not only a sales entity or warehouse.
No. A 98% assay alone does not establish cosmetic suitability. You still need to verify the source, solvent residues, heavy metals, microbiological limits, allergen profile, SDS, recommended use level, stability, and compatibility with your formula. Ask for topical-use support rather than assuming a supplement-grade powder will behave well in a skincare base.
Trans-resveratrol is a specific isomer commonly targeted in high-purity commercial specifications. "Total resveratrol" may refer to a broader measurement and can create ambiguity. For procurement, specify the exact isomer, assay method, and minimum content required.
At minimum, request a lot-specific COA, HPLC chromatogram, SDS, TDS, specification sheet, heavy-metal report, microbiological report, residual-solvent report if relevant, allergen statement, country-of-origin statement, shelf-life statement, packaging details, and certificate copies that can be independently verified.
Write the approved specification into the purchase order and quality agreement. Require the production lot number before shipment, request the pre-shipment COA, retain a sealed reference sample, and reserve the right to third-party testing. Define an acceptance/rejection mechanism and corrective-action responsibilities before payment.
- [General Administration of Customs of the People's Republic of China: Export Statistics] [english.customs.gov]
- [General Administration of Customs: Selected Commodity Export Data] [english.customs.gov]
- [Resveratrol Market Outlook] [futuremarketinsights]
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