Best Resveratrol Powder

Top Resveratrol Powder Supplier for Capsules, Tablets, Functional Foods, and Cosmetics

Guanjie Biotech is one of the best resveratrol powder manufacturers, supplying high-quality bulk resveratrol powder, 99% trans resveratrol, micronized resveratrol powder, and water-soluble resveratrol for nutraceutical, food supplement, and cosmetic applications. Our micronized resveratrol is developed to improve the formulation performance of traditional resveratrol extract powder. Since regular resveratrol has poor water solubility and limited bioavailability, we apply advanced micronization technology to reduce particle size from approximately 100–500 microns to 2–10 microns. This process increases the specific surface area and improves dispersion properties, supporting better absorption efficiency in formulations. We provide bulk trans-resveratrol price per kg supply, OEM solutions, COA documentation, and customized resveratrol ingredient services for global brands.

Why Choose Guanjie Biotech ?

Guanjie Biotech has developed an innovative Resveratrol Powder extraction technology by integrating macroporous resin purification with a fully enzymatic process. This advanced method enables the production of high-purity Trans Resveratrol Powder (≥99%) while reducing enzyme consumption and manufacturing costs. With advanced micronization and grinding technology, Guanjie has achieved the first industrial-scale application of this process in China. Our facility operates two dedicated Resveratrol Powder production lines with an annual capacity of 20 tons for 99% Resveratrol Extract Powder. Backed by over 20 years of experience, a professional R&D team of 15+ engineers, and more than 14 patented technologies, Guanjie provides reliable bulk Resveratrol Powder supply, OEM solutions, and standardized botanical extract ingredients for global nutraceutical, food, and cosmetic manufacturers. .We are one of the most professional herbal extract manufacturers and suppliers.  If you are interested in our products, please contact us: info@gybiotech.com.

 

Price of Our Resveratrol Bulk Powder

Different Best Resveratrol Powder specifications have different prices; welcome to enquiry us: info@gybiotech.com.

● Resveratrol( Micronized)

● Natural Resveratrol 50%

● Natural Resveratrol 99%

● Water Soluble 10% Resveratrol

 

Advantages of Micronized Resveratrol, Resveratrol, and Water-Soluble Resveratrol:

1. Guanjie Biotech provides customized micronized resveratrol powder with optimized particle size for advanced nutraceutical and functional ingredient applications. Through high-frequency vibration micronization technology, our trans resveratrol powder can achieve a particle size of <3 μm (D50), improving dispersion, formulation flexibility, and processing performance. During micronization, high-purity botanical extracts such as 99% resveratrol powder may experience particle aggregation caused by static electricity, which can affect standard particle size analysis results. To ensure accuracy, particle morphology and size distribution can also be verified through electron microscopy analysis. Our bulk resveratrol powder solutions support dietary supplements, capsules, tablets, cosmetics, and other applications requiring high-purity and fine-particle resveratrol ingredients.

We use an advanced micronization process to produce high-quality Resveratrol Powder with improved particle size distribution and dispersion properties. Unlike traditional grinding and milling methods, our vibration pulverization technology generates high-frequency mechanical force to reduce particle size at room temperature while minimizing heat impact. This process helps preserve the stability and purity of 99% Trans Resveratrol Powder. The technology enables consistent quality for bulk resveratrol powder applications in nutraceuticals, dietary supplements, functional foods, and cosmetics.

 

The avarage micron size of this batch is as follows:
d(10%) 0.5μm( more than 10% particle diameter less than 0.5μm)
d(50%) 2.0μm( more than 50% particle diameter less than 2.0μm)
d(90%) 5.0μm( more than 90% particle diameter less than 5.0μm)

2. Resveratrol

Guanjie Biotech has developed an advanced extraction technology to overcome the challenge of low-purity trans resveratrol content. By combining macroporous resin purification with a fully enzymatic process, we achieve high-purity Resveratrol Powder with ≥99% trans resveratrol. This innovative production method enables efficient industrial manufacturing, reduces enzyme consumption, and lowers production costs. Our bulk resveratrol powder is suitable for dietary supplements, nutraceutical products, cosmetics, and functional food applications, with consistent quality and reliable supply.

 

3.Water Soluble Resveratrol Powder

⑴.Introduction to raw material solubility:

a. Hydroxypropyl- β- Cyclodextrin: easily soluble in water, methanol, ethanol, etc;

b.Resveratrol: easily soluble in methanol, ethanol, ether, acetone, etc;

Our resveratrol another technique is water soluble resveratrol, it is use Hydroxypropyl-β-Cyclodextrin to embed resveratrol. The assay of water soluble resveratrol powder is about 10%.It is fit for make melting-tablets.

 

⑵.Molecular embedding technology principle:

Formation of inclusion complex: Cyclodextrin and its derivatives generally form inclusion complex through non-covalent combination of guest molecules and cavities. Inclusion reaction is a dynamic process. The guest molecules continue to recombine with cyclodextrins, but also continue to recombine. Hydroxypropyl cyclodextrin is easier to form an inclusion complex with suitable guest molecules than the original cyclodextrin, because hydroxypropyl substitution of 2, 3 hydroxyl H atoms increases the length of the cyclodextrin cavity, and the hydroxyl on hydroxypropyl may also form a new hydrogen bond with the guest molecules, increasing the stability of the inclusion complex. Most studies show that hydroxypropyl cyclodextrin and guest molecules mainly form 1:1 inclusion complexes, but there are also 2:1 inclusion complexes or oligomers.

Guest release: The inclusion complex formed by cyclodextrin and its derivatives with the guest is partly for the purpose of protection, slow release or solubilization. In this case, the guest molecule will eventually be released from the cyclodextrin. The main factors leading to or accelerating the release of guest molecules are concentration change and competitive substitution, and the influence of temperature and pH is small. When the concentration of the solution changes greatly, the customer will release in a very short time, and the cyclodextrin compound drug will be released quickly after injection into the body, which has almost no effect on the original pharmacology of the drug. When the binding constant of cyclodextrin and guest molecule is 10-4M-1, the decrease of concentration is enough to make the guest release. However, for the inclusion complex with high binding force, the effect of concentration gradually decreases, even has no effect, and competitive substitution becomes the main factor. Small molecules such as methanol and ethanol can competitively replace the guest of inclusion complex. The binding constant is determined by the properties of cyclodextrin and guest molecule. Hydroxypropyl cyclodextrin has a higher binding constant than the parent cyclodextrin.

 

⑶. Analysis:

The most effective way to achieve insoluble or insoluble matter (embedded matter) is to dissolve the embedded matter in another solvent with the same polarity to form a uniform molecular phase through the principle of similar phase solubility, and then transfer it into the solution of cyclodextrin by dropping it into the cavity of cyclodextrin, and form a stable complex by the van der Waals force of hydrogen bond, Or the complex that can stably exist between cyclodextrin and water has reached the purpose of embedding. Therefore, appropriate solvent can be selected for embedding operation according to the solubility of each component.

Hydroxypropyl- β- Cyclodextrin can be well dissolved in water, but also in methanol and ethanol.

Our goal is to dissolve the insoluble Best Resveratrol Powder in water through embedding technology, so the selection of solvent is very important. Methanol can be mixed with water in any proportion and can dissolve resveratrol.

 

⑷. Programme

Dissolve resveratrol bulk powder in methanol, and then slowly add it to hydroxypropyl- β- In the solution of cyclodextrin. By regulating hydroxypropyl- β- The amount of cyclodextrin, the volume ratio of water and methanol, temperature and pH value are used to obtain better embedding effect.

 

COA:

There are three COA about bulk resveratrol powder Non-GMO polygonum cuspidatum extract as following:

Resveratrol( Micronized)

Product Name: Resveratrol( Micronized)
Item	Specification	Result	Method
Basic Product Information
Genus and Species	Polygonum cuspidatum Sieb et Zucc．	Conform	/
Part of the Plant	Root	Conform	/
Country of Origin	China	Conform	/
Marker Compounds
Assay(Trans-resveratrol)	>99.0%	99.76%	HPLC
Emodin	<0.07%	0.02%	HPLC
Organoleptic Data
Appearance	Fine Powder	Conform	/
Color	Off-white to light yellow	Conform	/
Odor	Characteristic	Conform	/
Taste	Characteristic	Conform	/
Process Data
Method of Processing	Extraction	Conform	/
Solvent(s) Used	Ethanol & Water	Conform	/
Drying Method	Vacuum drying	Conform	/
Excipient	None	Conform	/
Ratio of Extraction	100:1	Conform	/
Physical Characteristics
Solubility	Soluble in Alcohol	Conform	Visual
Particles size analysis	d(10%)	0.353μm	GB/T 5507-2008
d(50%)	1.392μm
d(90%)	2.951μm
Surface area mean diameter D【3,2】	2.423μm
Volume mean diameter D【4,3】	3.757μm
Size range	0.059-112.0 μm
Loss on drying	<1.0%	0.51%	GB/T 14769-1993
Ash Content	<1.0%	0.48%	AOAC 942.05, 18th
Solvent Residue	Eur Pharm (Alcohol)	298ppm	GJ-QCS-1007
Heavy Metals
Total Heavy Metals	<10 ppm	Conform	USP<231>, method II
As	<2.0 ppm	Conform	AOAC 986.15, 18th
Pb	<2.0 ppm	Conform	AOAC 986.15, 18th
Hg	<0.5 ppm	Conform	AOAC 971.21, 18th
Cd	<0.5 ppm	Conform	AOAC 971.21, 18th
Pesticide Residue
666	<0.2ppm	Conform	GB/T5009.19-1996
DDT	<0.2ppm	Conform	GB/T5009.19-1996
Microbiology
Total Plate Count	<1,000cfu/g	Conform	AOAC 990.12, 18th
Total Yeast & Mold	<100cfu/g	Conform	FDA (BAM) Chapter 18, 8th Ed.
E. Coli	Negative	Negative	AOAC 997.11, 18th
Salmonella	Negative	Negative	FDA (BAM) Chapter 5, 8th Ed.

 

Resveratrol

Product Name Resveratrol
Item	Specification	Result	Method
Basic Product Information
Genus and Species	Polygonum cuspidatum Sieb et Zucc．	Conform	/
Part of the Plant	Root	Conform	/
Country of Origin	China	Conform	/
Marker Compounds
Assay(Trans-resveratrol)	>99.0%	99.65%	HPLC
Emodin	<0.07%	0.01%	HPLC
Organoleptic Data
Appearance	Fine Powder	Conform	NLS-QCS-1008
Color	Off-white to light yellow	Conform	GB/T 5492-2008
Odor	Characteristic	Conform	GB/T 5492-2008
Taste	Characteristic	Conform	GB/T 5492-2008
Process Data
Method of Processing	Extraction	Conform	/
Solvent(s) Used	Ethanol & Water	Conform	/
Drying Method	Vacuum drying	Conform	/
Excipient	None	Conform	/
Ratio of Extraction	100:1	Conform	/
Physical Characteristics
Melting point	253℃～255℃	254.6℃	GB21781-2008T
Solubility	Soluble in Alcohol	Conform	Visual
Particle Size (80 mesh)	>98.0% pass 80mesh	Conform	GB/T 5507-2008
Loss on drying	<2.0%	0.54%	GB/T 14769-1993
Ash Content	<1.0%	0.21%	AOAC 942.05, 18th
Solvent Residue	Eur Pharm	Conform	NLS-QCS-1007
Heavy Metals
Total Heavy Metals	<10 ppm	Conform	USP<231>, method II
As	<2.0 ppm	Conform	AOAC 986.15, 18th
Lead	<2.0 ppm	Conform	AOAC 986.15, 18th
Mercury	<0.5 ppm	Conform	AOAC 971.21, 18th
Pesticide Residue
666	<0.2ppm	Conform	GB/T5009.19-1996
DDT	<0.2ppm	Conform	GB/T5009.19-1996
Microbiology
Total Plate Count	<1,000cfu/g	Conform	AOAC 990.12, 18th
Total Yeast & Mold	<100cfu/g	Conform	FDA (BAM) Chapter 18, 8th Ed.
E. Coli	Negative	Negative	AOAC 997.11, 18th
Salmonella	Negative	Negative	FDA (BAM) Chapter 5, 8th Ed.

 

Water Soluble Resveratrol Powder

Product Name: Water Soluble Resveratrol Powder
Item	Specification	Result	Method
Basic Product Information
Genus and Species	Polygonum cuspidatum Sieb et Zucc．	Conform	/
Part of the Plant	Root	Conform	/
Country of Origin	China	Conform	/
Marker Compounds
Assay(Trans-resveratrol)	>10.0%	11.56 %	HPLC
Organoleptic Data
Appearance	Fine Powder	Conform	/
Color	Off-white to light yellow	Conform	/
Odor	Characteristic	Conform	/
Taste	Characteristic	Conform	/
Process Data
Method of Processing	Extraction	Conform	/
Solvent(s) Used	Ethanol & Water	Conform	/
Drying Method	Vacuum drying	Conform	/
Carrier	Betacyclodextrin	Conform	/
Water Solubility	>0.08g/ml	Conform
Ratio of Extraction	100:1	Conform	/
Physical Characteristics
Solubility	Soluble in Alcohol	Conform	Visual
Particle Size (80 mesh)	>98.0% pass 80mesh	Conform	GB/T 5507-2008
Loss on drying	<2.0%	0.68%	GB/T 14769-1993
Ash Content	<1.0%	0.54%	AOAC 942.05, 18th
Solvent Residue	Eur Pharm	Conform	GJ-QCS-1007
Heavy Metals
Total Heavy Metals	<10 ppm	Conform	USP<231>, method II
As	<2.0 ppm	Conform	AOAC 986.15, 18th
Lead	<2.0 ppm	Conform	AOAC 986.15, 18th
Mercury	<0.5 ppm	Conform	AOAC 971.21, 18th
Pesticide Residue
666	<0.2ppm	Conform	GB/T5009.19-1996
DDT	<0.2ppm	Conform	GB/T5009.19-1996
Microbiology
Total Plate Count	<1,000cfu/g	Conform	AOAC 990.12, 18th
Total Yeast & Mold	<100cfu/g	Conform	FDA (BAM) Chapter 18, 8th Ed.
E. Coli	Negative	Negative	AOAC 997.11, 18th
Salmonella	Negative	Negative	FDA (BAM) Chapter 5, 8th Ed.

 

How Is Best Resveratrol Powder Produced?

Testing report:

 

 

Area Percent Report:

B2B Frequently Asked Questions (FAQ)

Q1: What specifications of bulk resveratrol powder does Guanjie Biotech supply?

A: As a leading bulk resveratrol powder manufacturer, Guanjie Biotech supplies four main specifications to meet diverse formulation needs:

• Natural Trans-Resveratrol 99% (High-purity botanical extract for capsules & tablets)
• Micronized Resveratrol Powder 99% (Particle size D50 <3μm for optimized bioavailability & absorption)
• Water-Soluble 10% Resveratrol Powder (Hydroxypropyl-β-cyclodextrin inclusion complex for melting tablets & liquid supplements)
• Natural Resveratrol 50% (Standardized extract for cost-effective nutritional formulations)

Q2: What is the difference between regular resveratrol and micronized trans-resveratrol powder?

A: Regular resveratrol extract powder exhibits poor water solubility and limited oral bioavailability due to its large particle size (100–500 microns). Through high-frequency vibration pulverization technology at room temperature, our micronized resveratrol powder reduces particle size to 2–10 microns (D50 < 3μm). This significantly increases specific surface area, prevents thermal degradation, enhances dispersion properties, and supports superior bioavailability in final nutraceutical and cosmetic formulations.

Q3: How does your water-soluble resveratrol powder improve formulation performance?

A: Our water-soluble 10% resveratrol powder utilizes advanced molecular embedding technology with Hydroxypropyl-β-Cyclodextrin. By forming a stable inclusion complex, it overcomes the natural hydrophobic barrier of raw resveratrol, enabling excellent water dispersion without precipitation. This grade is specifically engineered for functional beverages, liquid shots, effervescent tablets, and melting tablets requiring high clarity and stability.

Q4: What quality documentation (COA, MSDS, TDS) can you provide for raw resveratrol bulk order?

A: As a standardized botanical extract factory, every batch of Guanjie's bulk trans-resveratrol powder comes with comprehensive technical documentation, including:

• Certificate of Analysis (COA) (Testing HPLC assay, particle size distribution, heavy metals, pesticides, and microbiology)
• Technical Data Sheet (TDS) & Safety Data Sheet (MSDS)
• Third-Party Lab Testing Reports (SGS/Eurofins reports for pesticides, heavy metals, and PAHs available upon request)
• Certifications: ISO 9001, HALAL, KOSHER, and Non-GMO (Pony Test verified).

Q5: What is your minimum order quantity (MOQ) and annual production capacity for bulk resveratrol?

A: Guanjie Biotech operates two dedicated resveratrol production lines with an annual capacity of 20 metric tons for 99% Trans-Resveratrol Extract Powder. Our standard MOQ is 1 kg for sampling and trial orders, while commercial bulk orders are supplied in standard 25 kg fiber drums (with food-grade double polyethylene bags inside). Customized OEM packaging and private labeling services are also available for global brands.

Q6: How does Guanjie Biotech ensure low pesticide residues and low heavy metals in resveratrol extract?

A: Our raw materials are sustainably harvested from wild Polygonum cuspidatum in the unpolluted Qinling Mountains. During extraction, we employ patented macroporous resin purification and fully enzymatic processes (Patent No. CN114632345A) to eliminate contaminants. Our finished natural trans-resveratrol powder strictly complies with EP (European Pharmacopoeia) and USP standards for total heavy metals (<10 ppm, Lead/Arsenic <2.0 ppm, Mercury/Cadmium <0.5 ppm) and pesticide residues (DDT/666 <0.2 ppm).

Q7: What are the shelf life and recommended storage conditions for bulk resveratrol ingredient?

A: The shelf life of our bulk resveratrol powder is 24 months from the manufacturing date when stored in its original unopened packaging. Because trans-resveratrol is sensitive to light and high heat, it should be kept in a cool, dry, and dark place (below 25°C / 77°F, away from direct sunlight and humidity).

Q8: How can I request a sample or get a wholesale quote for resveratrol bulk powder?

A: You can request a resveratrol powder free sample or customized price quote by emailing our sales engineering team at info@gybiotech.com. Please specify your target specification (e.g., 99% Micronized, 10% Water-Soluble), estimated order quantity, and intended application (dietary supplements, functional food, or cosmetics). Our sales representative will provide a competitive wholesale FOB/CIF price and COA within 24 hours.

 

Patent Production Process:

Guanjie Biology has studied pure best resveratrol powder for more than 20 years, and we have obtained two patents in the production process:

● A kind of protection device for extraction equipment
Patent No.: CN114632345A

The invention discloses a protective device for an extraction device, which comprises an extraction tank body, a placement box is fixedly arranged in the middle of the upper end of the extraction tank body, a rotary motor is fixedly arranged inside the placement box, an upper fixing frame is fixedly arranged at the upper end of the side wall of the rotary motor, a lower fixing frame is fixedly arranged at the lower end of the rotary motor, and a connecting bearing is fixedly arranged at the middle of the lower fixing frame, The output end of the rotary motor is fixedly connected with a rotary shaft through a connecting bearing, and the side wall of the rotary shaft is fixedly connected with a plurality of crushing knives. The invention discloses a protective device for extraction equipment, which can prevent the stress concentration between the equipment, avoid the damage of the parts inside the equipment, effectively fix and shock the motor, prevent the motor from producing large vibration when working, make the lower cutting knife run more stably, have higher safety performance, and prevent users from being burned by high-temperature steam leakage, further increase the safety of the device, which is worth promoting. It is worth popularizing to further increase the safety of the device.
 

● A kind of concentration equipment for easy disassembly
Patent No.: CN112843843A

The invention discloses a concentration device which is easy to disassemble, including a fixing ring plate and a cylinder. The fixing ring plate is located at the outer side of the cylinder, the inner fixing sleeve of the fixing ring plate is provided with a No. 2 fixing ring, the middle fixing sleeve of the cylinder is provided with a No. 1 fixing ring, and both sides of the No. 2 fixing ring are provided with bolts at the upper and lower ends of the fixing ring plate, One end of the four bolts close to the cylinder is threaded through the No. 2 fixing ring and sleeved at the inner end of the No. 1 fixing ring. A fixing seat is fixedly arranged at the center of the upper end face of the cylinder. A motor is fixedly arranged at the center of the upper end face of the fixing seat. The output end of the motor is fixedly connected with a rotation rod. The lower end of the rotation rod is penetrated through the fixing seat and the cylinder to the interior of the cylinder 19. The invention discloses a concentration device which is easy to disassemble, and the concentration device which is easy to disassemble is convenient to disassemble, saving time and labor.

 

Physical and chemical properties

Best Resveratrol Powder is Insoluble in water, soluble in ethanol, acetone and other organic solvents

 

Advantage

Wild raw material from Qinling mountain.Customized micronized powder and Water-soluble resveratrol.

 

Our factory:

There are two factories both in Baoji city and Shangluo City, Guanjie factories covers an area of 7000㎡, including GMP standard workshop of 2000㎡.

 

Product Qualification

Best Resveratrol Powder is produced in a clean working environment and every step is conducted by highly qualified professionals. Both the production processes of manufacture and the resveratrol 98 powder itself meet all international standards. And if you need our testing report, we can provide you.

 

Testing Center:

Both the production processes of manufacture and the product itself meet all international standards. And if you need our testing report, we can provide you.

 

Certification

We have obtained the NON-GMO by Pony test international group. And we get the certifications about HALAL,ISO 9001,ISO 22000,Kosher, PAHS,SC and so on.

 

 

Package&Warehouse:

 

Shipment:

DHL, FEDEX, Sea freight,Air freight you can choose.

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