OPC Proanthocyanidins is a processed derivative sourced from grape seeds, packed with high concentrations of antioxidants and oligomeric proanthocyanidin complexes (OPCs). This plant extract is linked to a wide spectrum of potential therapeutic benefits, including accelerated wound healing, and support for managing conditions such as high cholesterol, atherosclerosis, age-related macular degeneration, poor peripheral circulation, and nerve damage, alongside properties that help lower cancer development risk. As a professional OPC Proanthocyanidins manufacturer and supplier based in China, China Extract Warehouse specializes in delivering premium-grade products at highly competitive market prices. For long-term partnership inquiries, free product samples are available upon request, and we warmly welcome all incoming consultation messages.
Basic Product Details
| Item | Specification |
|---|---|
| Product Name | OPC Proanthocyanidins |
| Other Aliases | Oligomeric Proanthocyanidins / OPC |
| Active Content | 95% |
| Appearance | Fine reddish-brown powder |
| Sample Policy | Free samples offered |
| Extraction Technology | Solvent Extraction |
| Used Raw Material Part | Grape Seed |
| Place of Origin | China |
| Compliance Standard | CP2015 |
| Held Certifications | ISO, Halal, Kosher, SGS Test Report |
| Supplier | China Extract Warehouse |
| Product Grade | Food grade and medical grade |
Core Functions of OPC Proanthocyanidins
- Helps reduce overall cancer risk for regular users
- Delivers potent free radical scavenging antioxidant activity
- Features notable anti-inflammatory effects, and helps reduce swelling and edema
- Lowers the occurrence rate of skin pigmentation spots and cataracts
- Mitigates the risk of exercise-induced atherosclerosis
- Significantly strengthens the elasticity of blood vessel walls
Key Application Scenarios of OPC Proanthocyanidins
- OPC Proanthocyanidins can be formulated into health food products in capsule, lozenge and granule forms
- It is widely added as a functional active ingredient to beverages, wine, and different types of skincare cosmetics
- In European and North American markets, it is commonly incorporated into various food products such as cakes and cheese, acting both as a nutritional supplement and a natural preservative that greatly improves end product food safety.
Official Quality Test Report
| Test Item | Required Standard | Actual Test Result | Test Method |
|---|---|---|---|
| Proanthocyanidins Content | ≥95.0% | 102.4% | UV Spectrophotometry |
| Appearance | Fine Powder | Conforms | Visual Inspection |
| Color | Reddish Brown | Conforms | Visual Inspection |
| Ethyl Alcohol Residue | ≤5000ppm | 2392.5ppm | GC-ECD |
| Particle Size | ≥95% pass 80 mesh sieve | Conforms | Screen Testing |
| Loss On Drying | ≤5% | 2.32% | 5g sample tested at 105℃ for 2 hours |
| Residue on Ignition | ≤2% | 1.56% | 3g sample tested at 550℃ for 4 hours |
| Total Heavy Metals | ≤10mg/kg | <10mg/kg | Atomic Absorption Spectroscopy |
| Lead Content | ≤2mg/kg | Conforms | Atomic Absorption Spectroscopy |
| Arsenic Content | ≤2mg/kg | Conforms | Atomic Absorption Spectroscopy |
| Mercury Content | ≤1mg/kg | Conforms | Atomic Absorption Spectroscopy |
| Cadmium Content | ≤0.5mg/kg | Conforms | Atomic Absorption Spectroscopy |
| Microbiological Indicators | |||
| Total Plate Count | ≤1000cfu/g | Conforms | AOAC Standard Method |
| Total Yeast & Mold Count | ≤100cfu/g | Conforms | AOAC Standard Method |
| E. Coli | Negative | Negative | AOAC Standard Method |
| Salmonella | Negative | Negative | AOAC Standard Method |
| Test Conclusion: | This product passes all inspection items, and fully meets all stated quality specifications. |
Where To Purchase OPC Proanthocyanidins Across The Globe?
China Extract Warehouse is a trusted supplier of high-purity nutritional active compounds, with OPC Proanthocyanidins featured as part of our comprehensive ingredient portfolio that supports healthy mineral metabolism. We serve customers in all regions of the world, supplying high-quality raw materials and professional technical expertise to help you develop highly effective end nutritional products.
- China Extract Warehouse has dedicated itself to the research and development of plant-derived active ingredients for over 14 years, holding multiple national invention patents for our extraction and purification technologies.
- We have obtained a full set of international certification systems, including ISO9001, ISO22000, Kosher, Halal, SGS and other authoritative qualifications.
- We have a professional, experienced R&D team that ensures consistent stable product quality.
- We provide diversified product lines: our ingredients are already adopted by major international leading brands across the pharmaceutical, dietary supplement, cosmetics, animal nutrition and functional food industries.









