As international regulatory frameworks tighten and consumer demands shift towards clean-label botanical solutions, selecting a certified, high-capacity wholesale grape seed flavonoids supplier becomes a strategic imperative. Grape seed extract, exceptionally rich in oligomeric proanthocyanidins (OPCs), polyphenols, and monomeric catechins, stands at the absolute core of cellular health formulations, dietary supplements, premium cosmetics, and functional foods.
UniCare bridges the gap between agricultural sourcing and state-of-the-art biochemistry. By combining automated extraction technologies with rigorous validation protocols, we deliver standardized Grape Seed Flavonoid profiles characterized by consistent molecular weight distribution, verified antioxidant potency, and zero harmful solvent residues.
Dedicated to the discovery, purification, and global supply of highly bioactive herbal compounds under strict GMP conditions.
UniCare is a professional supplier of natural active ingredients. Our products are widely used in various fields such as dietary supplements, foods, cosmetics, and pharmaceuticals. We focus on product development and quality stability, insisting on growing together with our customers around the world.
UniCare has deep cooperation with several excellent Chinese manufacturers who have complete quality management system certifications, including but not limited to GMP, EU-GMP, CEP, ISO9001, ISO22000, and HACCP. Each factory has independent testing capabilities and is equipped with advanced and efficient testing equipment to ensure the high quality and long-term stability of each batch of products.
Transforming botanical potential into optimized industrial applications through science, integrity, and sustainability.
Unlocking the hidden potential of raw herbal structures, refining them into high-bioavailability active complexes to enhance final formulation effectiveness.
Investing heavily in technological optimizations to systematically reduce impurities, improve extraction yield, and eliminate solvent residues.
Utilizing high-efficiency automated extraction lines, precision membrane separation, and industry-leading chromatography systems to maintain batch homogeneity.
Supporting local agricultural partners through GACP-compliant farming strategies and optimizing cultivation parameters to secure long-term raw material sustainability.
A deep breakdown of the bioactive profiles, standardized chemical values, and quality benchmarks that define premium wholesale supply.
Grape Seed Flavonoids consist of a complex mixture of polyphenolic structures, dominated by monomeric flavan-3-ols (such as (+)-catechin and (-)-epicatechin) and their oligomeric condensation products, known as Oligomeric Proanthocyanidins (OPCs). The biological efficacy—specifically the free radical scavenging capacity and cardiovascular protection—depends directly on the degree of polymerization (DP) of these molecules.
Low DP oligomers (DP 2 to 5) are easily absorbed by the human intestinal tract, whereas high molecular weight polymers (tannins) exhibit poor bioavailability. As a primary manufacturer, UniCare monitors and refines these parameters to optimize the ratio of active low-DP OPCs in every batch.
Our extraction process uses optimized aqueous-ethanol systems rather than outdated toxic hydrocarbon solvents, ensuring clean-label compliance for global supplement and cosmetics brands.
| Analytical Parameter | Standard Specification | Testing Methodology |
|---|---|---|
| Total Polyphenols | ≥ 95.0% | UV-Vis / Folin-Ciocalteu |
| Oligomeric Proanthocyanidins (OPCs) | ≥ 95.0% | PVPP / Porter's Method / HPLC |
| Monomeric Catechins | ≥ 5.0% to 15.0% | RP-HPLC |
| Loss on Drying | ≤ 5.0% | USP <731> |
| Heavy Metals (Pb, As, Hg, Cd) | Conforms to EU / USP standards | ICP-MS |
Equipped with the largest and most advanced extraction infrastructure in China to guarantee continuous global supply.
UniCare attaches great importance to the hardware conditions of production equipment and has the largest and most advanced extraction factory in China. The entire production line in UniCare is controlled by a modern, intelligent, automatic control system.
Until now, UniCare has built up two GMP workshops, containing six multi-functional extraction lines, among which is the only production line for Ginkgo Biloba Extract of acetone process in the whole of China. Here are several other production lines including fermentation production lines and Chinese medicine pieces. A total of 30,000 tons of various Chinese medicine plant raw materials can be processed each year.
All operations strictly follow national and international GMP regulations, ensuring batch validation and complete process safety.
Our Ginkgo Biloba EU-GMP and CEP certifications reflect our technical capabilities and strict quality control standards.
Includes three annular dynamic countercurrent extraction lines (10 & 15 tons), two multi-functional extraction lines, and one round dynamic countercurrent line.
Features six fermentation tanks, each with a 20-ton capacity, dedicated to structural enzymatic modifications that improve active compound absorption.
Equipped with analytical instruments to guarantee absolute compound purity, trace-level safety compliance, and stability.
UniCare has established a leading and complete quality control system, and strictly controls the high quality of products in accordance with the quality system. With advanced testing instruments, strict control of product quality, to provide every customer with high quality products.
Detectable items include: Signature component detection (HPLC or UV), solvent residues (GC), pesticide residues (GC-MS-MS), heavy metals (lead, arsenic, mercury, cadmium, copper by ICP-MS), microscopic identification, moisture, dry weight loss, ash, microbial limits, thin layer identification, bulk density, conductivity, pH, and sulfur dioxide residue.
Our central laboratory is qualified by CNAS, housing high-performance analytical systems. The equipment configuration guarantees that we meet the regulatory requirements of EU, US FDA, and USP monographs.
| Instrument Model | Quantity | Primary Analytical Application |
|---|---|---|
| UHPLC Agilent 1290 | 2 Sets | High-resolution active ingredient assay, isomers separation |
| HPLC Agilent 1260 | 4 Sets | Routine fingerprint mapping, quantitative active assay |
| HPLC Shimadzu LC-20AT | 2 Sets | Polyphenol concentration validation, purity verification |
| Shimadzu GC-2010 | 1 Set | Organic solvent residues and volatile impurities tracking |
| Shimadzu AA-7000 (Atomic Absorption) | 1 Set | Trace heavy metal quantitative analysis |
| ELSD Shimadzu 2000ES | 2 Sets | Detection of non-UV absorbing compounds and lipids |
Securing raw material purity from planting seeds to advanced molecular extraction.
UniCare invests 10% of our annual net profit in research and development. In addition to optimizing and developing the existing natural plant extraction process, we have established a professional R&D department for natural fermentation products. By increasing investment in natural fermentation products, we try to break through traditional processes and disrupt industry development.
UniCare has deep cooperation with Beijing University of Chemical Technology in the field of fermentation, jointly developing and transforming new raw materials for pharmaceutical, cosmetic, and natural health products into mass-produced products.
In order to control raw materials more efficiently and with higher quality, a raw material procurement system has been established, which extends procurement to every piece of planting land and can trace the raw materials of each batch of products. The storage of raw materials is operated according to the advanced quality management system process.
To further ensure the high quality of important products, UniCare has cooperated with planting farmers to establish ginkgo leaf planting bases, epimedium planting bases, phellodendron planting bases, and olive leaf planting bases. Some of these bases are planted strictly in accordance with the GACP management model. We also cooperate with seedling R&D companies to develop high-content cultivation through hybridization or gene optimization to reduce unit costs for users.
Understanding market dynamics, clinical evidence, and technical demands within the global botanical market.
Global brands are phasing out synthetic excipients and chemical carriers. Our Grape Seed Flavonoids are processed using clean water and food-grade ethanol, matching consumer expectations for 100% natural, clean-label formulations.
Regulatory agencies such as the FDA and EFSA demand strict DNA/chromatographic confirmation of raw materials. UniCare provides complete documentation, including pesticide profiles and third-party laboratory verification, to simplify compliance audits.
Modern applications require grape seed extracts to interact effectively with other actives like Resveratrol, Vitamin C, and Rutin. Our custom powder processing supports complex product formats, including tablets, softgels, and instant dry drink mixes.
Providing customized physical and chemical properties to resolve downstream formulation challenges.
For encapsulation and tableting, powder flowability, tap density, and moisture control are critical parameters. UniCare optimizes particle size distribution (standard 80 mesh, custom options available) to limit machine friction and reduce waste during high-speed production run-times.
Grape Seed Flavonoids are highly regarded as strong natural anti-aging agents, but polyphenolic formulations are prone to oxidation and color drift. UniCare offers microencapsulation-ready grades that stabilize the compound, ensuring long-term color integrity in emulsions, creams, and water-based serums.
How we support global distribution networks and innovate next-generation botanical actives.
Global regulatory compliance is a key focus at UniCare. We support your regulatory filing procedures by providing comprehensive documentation packages, including:
Our regulatory support team works directly with your compliance managers to simplify importation procedures and speed up market entry.
Over the next five years, UniCare plans to expand its research collaboration with partners like Beijing University of Chemical Technology. Our key technical objectives include:
Technical and logistical insights to assist global procurement managers and product formulators.
