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Pure Grape Seed Extract Powder
Part of the plant used: seed
Specification: 95% OPC
Active ingredient: Proanthocyanidins
Test method: UV
Appearance: Dark Purple fine powder
Annual output: 50tons
Two Factories & Three production lines
CGMP standard workshop & two independent laboratories
Certifications: Halal,ISO9001,PAHS Free,NON-GMO,KOSHER,SC
Overseas warehouse(NJ,USA)
Delivery term: DHL, FEDEX, Air freight,Sea freight
Provide Free Sample
MOQ: 1KG
Not for Private Person Sale
Description
Pure Grape Seed Extract Powder Suppliers:
Guanjie Biotech is a bulk Pure Grape Seed Extract Powder, which uses the fresh fruit of grapes. It is a dark purple fine powder and contains 95% OPC (oligomeric proanthocyanidins), which are naturally occurring bioflavonoids found in grapes. The extract is made using a UV test method and is derived in a GMP-standard workshop with independent laboratories. As a Grape Seed bulk extract supplier, you can trust our quality and service.

Why Choose Guanjie Biotech?
● Independent factories and labs.
● Provide the third-party testing.
● Guanjie Biotech has been in Pure Grape Seed Extract Powder production and sale for 20 years.
● Have strong Collaborators: Northwestern University and the Chinese Academy of Sciences research center.
COA:
|
Item |
Specification |
Result |
Method |
|
Marker Compounds |
|||
|
Proanthocyanidins |
>95% |
95.57% |
UV |
|
Organoleptic Data |
|||
|
Appearance |
Powder |
Conform |
GJ-QCS-1008 |
|
Color |
Red brown |
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 |
Conform |
/ |
|
Drying Method |
Vacuum drying |
Conform |
/ |
|
Physical Characteristics |
|||
|
Particle Size (80 mesh) |
98.0%pass 80mesh |
Conform |
GB/T 5507-2008 |
|
Moisture |
<5% |
1.71% |
GB/T 14769-1993 |
|
Ash Content |
<4% |
2.13% |
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 |
|
Pb |
<1.0 ppm |
Conform |
AOAC 986.15, 18th |
|
Cd |
<0.5ppm |
Conform |
AOAC 986.15, 18th |
|
Hg |
<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 |
<10,000cfu/g |
Conform |
AOAC 990.12, 18th |
|
Total Yeast & Mold |
<1,000cfu/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. |
What Is The Active Ingredient In Grape Seed Extract?
Pure Grape Seed Extract Powder is effective because of its powerful natural compounds, primarily known as OPCs (Oligomeric Proanthocyanidins). Think of OPCs as a dedicated team of antioxidants. Their main job is to protect the body's cells from damage caused by unstable molecules called free radicals.
However, OPCs don't work alone. The extract contains other beneficial team members, including flavonoids like catechin and quercetin. These compounds provide additional antioxidant support and help manage inflammation. You will also find resveratrol in the mix, a well-regarded compound known for supporting heart health.
It is this natural combination of OPCs, flavonoids, and resveratrol working together that makes Pure Grape Seed Extract Powder a comprehensive and valuable ingredient. This synergy is why it is so widely used in high-quality supplements, functional foods, and skincare products.
How to take pure grape seed extract powder?
● Measure the recommended dosage of grape seed extract powder using a measuring spoon or scale.
● Mix the powder into a glass of water or a smoothie, and stir it thoroughly until it is fully dissolved.
● Drink the mixture immediately.
● You can also take the powder by mixing it with food such as yogurt or applesauce if you prefer.
● Be sure to follow the recommended Pure Grape Seed Extract Powder dosage on the label, as taking more than the recommended amount can cause adverse effects.
Is grape seed extract safe?
For businesses in the nutraceutical, functional food, and cosmetic industries, the safety of Pure Grape Seed Extract Powder is the foundation of product integrity and consumer trust. Grape seed extract (GSE), a popular ingredient derived from the seeds of Vitis vinifera, is generally recognized as safe for consumption and use.
Grape seeds themselves have been indirectly consumed for millennia through wine-making and grape consumption. The concentrated extract, rich in oligomeric proanthocyanidin complexes (OPCs), is a more modern innovation, but its components are naturally derived. OPCs are powerful antioxidants, and the safety of polyphenol-rich plant extracts is well-documented. This long history of human exposure to its core compounds provides a strong initial argument for its safety. The safety of Pure Grape Seed Extract Powder has been evaluated by numerous scientific studies and authoritative bodies.
● GRAS Status:
In the United States, Pure Grape Seed Extract Powder has achieved "Generally Recognized as Safe" (GRAS) status for use in specific food categories. This designation means that qualified experts have concluded the ingredient is safe under the conditions of its intended use. For businesses, this is a critical regulatory green light, simplifying the process of incorporating GSE into food, beverage, and supplement products.
● Clinical Evidence:
Hundreds of clinical trials have investigated the effects of GSE on human health, often using doses ranging from 100 to 300 mg per day, and some studies have gone much higher. A comprehensive review of this research consistently shows that GSE is well-tolerated by most individuals. The most commonly reported side effects are mild and infrequent, typically including minor headaches, dizziness, or digestive discomfort, which are common to many dietary supplements.
● Safety in Topical Applications:
For cosmetic and personal care brands, Pure Grape Seed Extract Powder is also considered very safe. It is non-irritating for most skin types and is valued for its antioxidant and firming properties. Its natural origin enhances its appeal in clean-label and natural cosmetic formulations.
How to Choose a Grape Seed Extract Supplier?
Selecting a high-quality grape seed extract supplier is a critical decision that impacts your product's quality, consistency, and marketability. Moving beyond just price, a diligent evaluation based on the following criteria will ensure a successful partnership.
High-Quality and Purity Certifications:
The foremost consideration is quality assurance. Your Pure Grape Seed Extract Powder supplier must provide comprehensive Certificates of Analysis (CoAs) for every batch, verifying key metrics like:
• Potency:
Standardized levels of Oligomeric Proanthocyanidins (OPCs), typically 90-95% or higher.
• Purity:
Confirmation of the absence of heavy metals, pesticides, and microbiological contaminants.
• Solvent Residues:
Proof of safety from extraction chemicals.
Look for suppliers whose manufacturing facilities are certified under international standards like ISO, cGMP (current Good Manufacturing Practices), or FSSC 22000. These certifications are non-negotiable for ensuring consistent, pharmaceutical-grade quality.
R&D capabilities and extraction technologies
A Pure Grape Seed Extract Powder supplier is a technical partner. Inquire about their R&D capabilities and extraction technologies (e.g., water-based, ethanol, or supercritical CO2). Can they provide technical data sheets and application support? Furthermore, determine if they offer customization in terms of powder granulation, extract ratios, or specific OPC profiles to fit your unique product formulation needs.
Evaluate Supply Chain Stability and Scalability:
Your supplier must be a reliable long-term partner. Assess their sourcing of raw materials-do they control their grape pomace supply? Inquire about their production capacity and inventory levels to ensure they can meet your demand fluctuations and support your business growth without disruption.
Consider Regulatory and Market-Specific Compliance:
Ensure the supplier understands the regulatory landscape of your target market. They should be able to provide documentation and support for GRAS status, EU Novel Food compliance, or other regional requirements, streamlining your own product's path to market.
By systematically evaluating suppliers on these pillars of Quality, Expertise, Reliability, and Compliance, you can secure a partnership that protects your brand and delivers a superior product to your customers.
Guanjie Biotech is a Pure Grape Seed Extract Powder supplier. Our products guarantee purity and consistency through advanced manufacturing and rigorous testing, allowing our clients to confidently formulate products that are not only effective but also safe for the end-consumer.
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Certification

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