grape seed extract capsules Standardized extract bulk supplier



Product Overview:
Our grape seed extract capsules provide a standardized polyphenol content of 95% and are rich in highly active oligomeric proanthocyanidins (OPCs). As a GMP-certified facility, we understand that the key to high-quality plant extracts lies in comprehensive quality control throughout the entire process, from raw materials to the finished product. We employ gentle extraction and drying processes, rigorously testing each batch to ensure the consistency and purity of key active ingredients, providing you or your brand with a reliable, verifiable product to support cellular health.
E-mail: sales05@nutritionoem.com, sales09@nutrition-oem.com
Efficacy: Skin Supplement
grape seed extract capsules Standardized extract bulk supplier Details
Last updated July 2026
| Product Name | grape seed extract capsules Private Label Manufacturer |
| Appearance | capsules |
| GMP certified factory | Xi'an ECO Biotech Factory Co., Ltd. Xi'an Henrikang Biotech Co., Ltd. |
| Brand | Reson and Ausreson |
| Specification | 500mg/Cap,1000mg/Cap or as your request |
| Certification | ISO,Halal,HACCP |
| Keywords | grape seed extract capsules, Best antioxidant for skin and heart health, High potency OPC capsules |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. |
| Shelf Life | 24 Months |
What is Grape seed extract?
- Grape seed extract is a dietary supplement made from natural components extracted from grape seeds. Its main components are proanthocyanidins (OPC) and polyphenols, primarily used to supplement the body's need for antioxidants. These products help maintain healthy cells by eliminating excess free radicals (unstable molecules that can cause cell damage), thereby helping to improve skin condition and blood vessel elasticity.
- The proanthocyanidins in grape seed extract have high bioactivity and can work synergistically with various vitamins to enhance antioxidant effects. Some studies suggest that grape seed extract may offer some protection against UV-induced skin damage and may also help relieve eye strain from prolonged screen time.
Ingredients and Formulation
The core components of grape seed extract include proanthocyanidins, polyphenolic compounds, vitamin E, and trace minerals. Proanthocyanidins are the most abundant active substance in grape seeds, belonging to the bioflavonoid family, and possess strong antioxidant capabilities; polyphenols protect cell structure by regulating oxidative stress responses.
- Proanthocyanidins (OPC): Natural antioxidants derived from grape seeds, reducing oxidative damage by neutralizing free radicals.
- Polyphenolic compounds: Including catechins and epicatechins, which can help enhance blood vessel elasticity and improve microcirculation.
- Vitamin E: Works synergistically with grape seed extract to prolong the antioxidant effect and protect cell membrane structure.
| OEM Service | ||||
| We offer OEM services, please contact us for more information>> | ||||
| Product Type | Capsules,Softgels,Tablets,Gummies,Liquid Drops,Gum,solid beverage and other customized products | |||
| Packaging | Bottles, Bags, Bulk, Blister packs, Custom | |||
| Formulas | Standard formulas or custom formulas | |||
| OEM service | Support OEM&ODM Custom service,Different Formula,Flavors, Shapes,Bottle ,Color | |||
Why Grape Seed Extract is the "Longevity Essential"
1. Cardiovascular & Circulation Support
- Grape seed OPCs help strengthen the walls of your blood vessels and promote the production of nitric oxide. This supports healthy blood flow, reduces the appearance of "spider veins," and helps maintain blood pressure levels already within a normal range.
- Free radicals are the primary cause of premature skin aging. Grape Seed Extract protects the skin’s collagen and elastin matrix from environmental damage (UV and pollution), helping to maintain firmness and a bright, even skin tone.
- The potent antioxidants in grape seeds are capable of crossing the blood-brain barrier. They help protect neural tissues from oxidative stress and support healthy microcirculation to the eyes, making it a favorite for digital professionals.
- By neutralizing systemic oxidative stress, Grape Seed Extract supports a balanced inflammatory response throughout the body, benefiting joint comfort and overall metabolic health.
How Grape Seed Extract Supports Your Health
1. Supports Cardiovascular Function
Grape seed OPCs help support healthy blood vessel function and circulation.
2. Provides Powerful Antioxidant SupportRich in polyphenols and OPCs, grape seed extract helps neutralize free radicals and protect cells from oxidative stress.
3. Supports Skin HealthAntioxidants help protect the skin’s collagen and elastin matrix from environmental damage, supporting healthy skin appearance.
4. Supports Healthy AgingBy combating oxidative stress, grape seed extract supports cellular health as part of a healthy lifestyle.
Frequently Asked Questions
Q: Does it contain caffeine or sugar?
- A: No. While derived from grapes, the extract is concentrated for polyphenols and does not contain the sugar found in whole fruit, nor the caffeine found in green tea extracts.
- A: Skin cells typically turn over every 28–40 days. Most users report a more "vibrant" complexion and improved skin texture after 4–8 weeks of consistent use.
- A: Yes. Our Grape Seed Extract is 100% plant-derived and encapsulated in non-GMO vegetable cellulose, making it 100% Vegan and Vegetarian friendly.
Our Manufacturing Expertise
Source Control of Raw Materials: We carefully select wine grape seeds from specific growing regions and clearly identified varieties, which naturally contain higher proportions of the target polyphenols. Each batch of raw materials undergoes screening for pesticide residues and heavy metals to ensure safety from the source.
“Standardized” Process Core: Achieving “95% polyphenols” is not simply a matter of mixing; it is achieved through precise solvent extraction, concentration, and spray-drying processes. Our production parameters (such as temperature, time, and solvent ratios) have been validated to maximize the retention of OPC’s bioactivity while effectively removing ineffective plant fibers and impurities.
Guaranteeing Batch Consistency: Natural variations between batches are inherent in plant extracts. Our solution involves rigorously testing the extracted concentrates and standardizing the formulation based on these test results to ensure that the total polyphenol content in the final product remains stable at the labeled value of 95%. This is the key distinction between professional-grade supplements and ordinary powders.
Our Commitment to Quality and Purity:
“Three-Free” and “Full Inspection” Standards: Our products are free of artificial colors, preservatives, and common allergens. Each batch undergoes comprehensive testing by a third-party laboratory (such as SGS) for total polyphenol content, OPC content, heavy metals (lead, arsenic, cadmium), microorganisms, and pesticide residues, and a Certificate of Analysis (COA) is provided.
Form and Absorption: We use vegan HPMC capsule shells, suitable for all dietary needs. The raw material is a fine powder, which aids in rapid dispersion and dissolution in the gastrointestinal tract.
Stability Protection: Packaged in opaque, moisture-resistant HDPE bottles with built-in desiccants, our products effectively protect light- and moisture-sensitive polyphenols, ensuring efficacy throughout the 24-month shelf life.

OWN Brand
Intergroup is supplying OEM service for the Well-known brands Reson and Ausreson. Alibaba International Station No.1 supplier, Alibaba International Station Number 1, Alibaba International Station Number one Customized logo is welcome, Packing as your requirement. offering private label

Cusrom Process
01 Contact us 02 Confirm Product Formula 03 Sample Confirmation 04 Deposit Payment 05 Factory Production 06 Product Quallty Inspectlon 07 Balance Payment 08 Dispatch and Delvery


Factory & Exhibition
Private Label design, fast delivery, USA Warehouse, European Warehouse, capsules factory,Softgels factory,tablets factory, pills factory, Gummies factory, Liquid Drops factory,Gum factory,solid beverage factory, customized factory, capsules manufacturer, Softgels manufacturer, tablets manufacturer, pills manufacturer, Gummies manufacturer, Liquid Drops manufacturer,Gum manufacturer,solid beverage manufacturer.
In order to better serve our global customers, we will participate in various large-scale exhibitions.Europe, North America

Certifications
We are a nutritional supplement raw material and nutritional supplement brand OEM manufacturing factory in China with ISO 22000, ISO 9001, HACCP Management certifications, GMP certificate the factory, HALAL, CE, CE-ROHS, Organic, KOSHER, NSF Product certifications.Our product's comprehensive certification standards.

Packaging
We promise to provide high-quality products, but please raise any quality issues within 15 days of receiving the package.
From concept to finished product, we are committed to quality, efficiency, and customer satisfaction. Let us help you bring your product to life!

FAQs
Q: What kind of OEM forms can you supply ?
A: Pre mix powder, Capsules, Tablets, pills, Softgel,drops, Gummy.
Q: What's the pill size?
A: Capsule: 2#,1#,0#, 00#. Tablet: Can customize like 500mg, 1000mg, 1500mg, 2000mg
Q: What are capsule shells made of ?
A: Gelatin,HPMC (Vegan), Enteric gelatin & enteric vegan shells.
Q: Can the formula be customized by our Own Formula?
A: Yes, The formula can be exact customized.
Q: Minimum Order Quantity (MOQ) ?
A: Small quantity sample can be customized according to your requirements. Official order MOQ: 100,000 pieces
Q: Can you supply bottles with private label?
A: Yes, all can be customized.
Q: What kind of certificates can you supply for your OEM capsules / Tablets?
A: Health certificate, Original certificate.







