Product Introduction
Qyherb supplies Grape Seed Extract Powder that has beneficial physiological functions for the human body, and has preventive and therapeutic effects on various diseases. As a pure natural functional additive, the active ingredient proanthocyanidin is widely used in health food, medicine and cosmetics. Our company is located in Shaanxi, where there are abundant grape resources. And with the continuous improvement of product extraction and purification process, we can provide you with high-content OPC products. We are committed to providing the best product solutions.

Health Benefits
1. OPC powder has a strong antioxidant effect;
2. It can reduce the risk of some diseases, such as heart disease, cancer, premature aging, arthritis, high blood pressure, etc.
3. Helps control diabetes and cholesterol levels;
4. It can improve sebum production, improve skin appearance and skin elasticity;
5. Grape Seed Extract has an anti-inflammatory effect.
6. Proanthocyanidins in grape seed extract can enhance the resistance of blood vessels, reduce swelling, reduce the severity of sports injuries, and reduce edema and swelling of the legs.
7. Grape seed powder for skin: Reduces excessive oxidative free radicals and moderately cross-links collagen. To keep the skin supple and smooth to achieve skin care effect.
7. It can relieve pain caused by arthritis, enhance immunity, and treat acute gastric ulcers.
Production Process
At present, the extraction methods mainly use water extraction, organic solvent extraction, microwave method, supercritical CO2 extraction and so on. The most widely used method is organic solvent extraction. The organic solvents are mainly ethanol, methanol, acetone and the like. The crude grape seed extract contains more impurities and lower content of proanthocyanidins. Therefore it needs further purification.
The purification of crude grape seed extract mainly adopts solvent extraction method, precipitation method, enzymatic hydrolysis method, ultrafiltration method, adsorption elution method and other methods. To sum up, there are mainly two kinds of solvent method and adsorption resin method.
OPC Uses and Application

1. Food additives: Grape Seed Extract Powder can not only meet the needs of the food industry for additives, but also provide certain health care functions and anti-corrosion and fresh-keeping functions.
2. Skin care products, cosmetics field:
New whitening antioxidant;
Anti-aging, easily absorbed by human epidermis;
Keep skin firm and hydrated, reduce wrinkles and keratin production;
Skin care products containing proanthocyanidins can shrink pores and firm skin;
3. Supplement raw materials
Prevent Parkinson's disease and Alzheimer's disease;
Prevent and improve cardiovascular disease, arthritis, cancer, etc.;
Reduce free radical damage to the eye lens.
4. Pharmaceutical: A variety of pharmacological activities can make it develop into valuable natural botanical medicine.
Certificate of Analysis
Item | Specification | Result | Method | |
Assay | OPC 95% | 97.08% | UV | |
Physical & Chemical Data | ||||
Appearance | Brown Red Fine Powder | Conforms | Organoleptic | |
Odor & Taste | Characteristic | Conforms | ||
Analytical Quality | ||||
Identification | Identical | TLC | ||
Sieve | NLT 95% Through 80 mesh | Conforms | Mesh Screen | |
Extract Solvent | Ethanol & Water | Conforms | ||
Loss on Drying | ≤5.0% | 3.39% | CP2020 | |
Ash | ≤5.0% | 3.54% | CP2020 | |
Bulk Density | 0.30~0.70g/ml | Conforms | CP2020 | |
Pesticide Residue | ||||
BHC | ≤0.2ppm | Conforms | GC-MASS | |
DDT | ≤0.2ppm | Conforms | GC-MASS | |
PCNB | ≤0.1ppm | Conforms | GC-MASS | |
Total Heavy Metals | ≤10ppm | Conforms | Colorimetry | |
Arsenic(As) | ≤2ppm | Conforms | AAS | |
Lead(Pb) | ≤2ppm | Conforms | AAS | |
Mercury(Hg) | ≤0.1ppm | Conforms | AAS | |
Cadmium(Cd) | ≤1ppm | Conforms | AAS | |
Microbiological Tests | Irradiation | Non irradiated | ||
Total Plate Count | ≤1000cfu/g | ≤10000cfu/g | Conforms | CP2020 |
Yeast & Mold | ≤100cfu/g | ≤300cfu/g | Conforms | CP2020 |
E.Coli | Negative | Negative | Negative | CP2020 |
Salmonella | Negative | Negative | Negative | CP2020 |
Staphylococcus | Negative | Negative | Negative | CP2020 |
Conclusion | Conform with specification | |||
Quality Assurance

Qyherb Certificates

Qyherb Advantage
1. Experienced Natural Ingredients Manufacturer: 15 years of dedication to extracting active ingredients from natural herbal medicine plants; Focus on applying natural plant in food, dietary supplements, cosmetics, health products and other fields.
2. Advanced Equipment: 2 factories with 10000㎡; modern processing equipment (extraction, concentration, column layer, spray drying, CNC vacuum drying oven, etc.); GMP production workshop.
3. One-stop Product Solution Supplier: Provide a variety of product specifications. Not only raw materials, professional team also provides OEM service(development, production, processing and sales).
4. Reliable Quality Assurance: Independent laboratories and professional technicians; advanced testing equipment; complete product certificates (Halal/KOSHER/SC/ISO9001/ISO22000).

If you’d like to buy Grape Seed Extract Powder, please contact us at info@dnbiology.com. Products in various specifications, or customized according to customer needs.
We are dedicated to extracting natural ingredients from herbal and plants with 15 years of experience. As well as the application of active ingredients in food, functional food, dietary supplements, cosmetics, health care products and other fields.
Why choose us?
- We understand the importance of timely delivery and work hard to meet our customers' needs.
- Quality is the first step to establish a brand image. Only when the quality is good, customers will be willing to spend.
- Our company has a team of experienced production and quality control professionals.
- With many years of unremitting efforts and practice accumulation, we can provide customers with higher quality products and better service.
- We take pride in our high customer satisfaction ratings.
- Our company provides customers with first-class products and services. Continuously innovating service culture, continuously improving service standards, and continuously updating service quality are the eternal goals pursued by enterprises facing customers.
- We value customer feedback and use it to continuously improve our products and services.
- We always maintain an understanding of the latest research trends in [Grape Seed Extract Powder field.
- Our Herbal Extract products are backed by scientific research and evidence-based practices.
- Here, we will continue to work hard to impress customers with the highest quality products and sincere service. At the same time, our company will always be at the forefront of the environmental protection team and strive to become an ethical enterprise that actively contributes to society and a model enterprise recognized by the industry.
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