|
HS Code |
708709 |
| Product Name | Grape Skin Extract 30% Polyphenols |
| Appearance | Purple-red fine powder |
| Polyphenol Content | ≥30% |
| Active Ingredient | Polyphenols |
| Source | Vitis vinifera (grape) skins |
| Solubility | Water soluble |
| Odor | Characteristic mild odor |
| Storage Conditions | Cool, dry place, away from direct sunlight |
| Applications | Dietary supplements, food additives, cosmetics |
| Primary Benefits | Antioxidant, supports cardiovascular health |
| Loss On Drying | ≤5% |
| Heavy Metals | <10 ppm |
| Shelf Life | 24 months if properly stored |
As an accredited Grape Skin Extract 30% Polyphenols factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sealed 25kg fiber drum with inner double-layer polyethylene bags, labeled "Grape Skin Extract 30% Polyphenols" and batch details. |
| Shipping | Grape Skin Extract 30% Polyphenols is shipped in tightly sealed, food-grade containers to preserve potency and prevent contamination. Transported under dry and cool conditions, it is labeled according to regulatory requirements. Standard packaging sizes vary from 1 kg to 25 kg. All shipments include a Certificate of Analysis and safety documentation. |
| Storage | Grape Skin Extract 30% Polyphenols should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and moisture. Keep the container tightly closed to prevent contamination and degradation. Store at room temperature, ideally between 15-25°C (59-77°F), and avoid exposure to strong odors or chemicals. Follow all local regulations for safe chemical storage. |
Competitive Grape Skin Extract 30% Polyphenols prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Years in the plant extract industry have taught us one thing: nothing beats thorough understanding of your raw material. Grape skin extract has earned a respected spot in our lineup for good reason. We produce Grape Skin Extract standardized to 30% polyphenols, with a focus not only on content but on quality of those polyphenols. Developing this ingredient meant going far beyond the usual mass-market polyphenol mixes branded by traders. We start with grape skins sourced directly from trusted vineyards, primarily using Vitis vinifera. This gives us a reliable supply and a well-documented phytochemical profile. Our extract brings the rich color, potent antioxidant properties, and distinctive taste that product formulators notice right away.
Out in the field, there’s a big divide between extracts designed for bulk sales and extracts designed to perform. Too many products landing in the market today don’t come with a clear story or transparent data from the people who actually make them. Because we control the process from grape reception through final drying and powdering, we know exactly what ends up in each batch. There’s a difference you can see – the deep reddish-purple hue, the easily dispersible powder, the characteristic Grape flavor that develops in solution or blend.
Not every 30% polyphenol grape extract performs the same. Polyphenols form a broad class including anthocyanins, proanthocyanidins, flavonols, and phenolic acids, with varying types and ratios depending on how the material is handled. We use HPLC fingerprinting at every batch to ensure the proportion of anthocyanins and proanthocyanidins stays consistent. The 30% marker isn’t just a number – it’s a guarantee that the concentration doesn’t swing from one season to another. Sometimes we face unpredictable harvests and variations in precipitation, but we always match our standards by blending lots and adjusting extraction conditions.
Customers who visit our site can see the actual process, from grape reception and batch sorting to gentle crushing, water-ethanol extraction, and final spray drying. Our plant managers have decades of experience balancing optimal temperature and solvent composition to preserve polyphenol integrity. Many commercial extracts lose anthocyanin content during aggressive concentration. Here, nobody processes a batch without careful controls, because we understand that antioxidant power depends not only on quantity but the variety of polyphenols present. That translates into reliable functional properties for supplement manufacturers, food processers, and beverage brands.
Walking through our QC labs, you’ll find much more than basic spectrophotometric assays. Test protocols extend to moisture, ash, heavy metal, and pesticide residue analysis, because a good raw material is only the start. There’s no shortcut around true technical documentation, batch-to-batch certificates of analysis, safety data files, and even support for key regulatory filings. Specifications list 30% polyphenols by UV, less than 5% moisture, low ash, neutral flavor in solution, water dispersibility, and absence of synthetic additives. These details drive confidence for formulators looking to declare natural provenance for their own brands.
Equipment in production lines is set for small and large scale demand, giving us flexibility. Some customers need hundreds of kilos per batch, others prefer smaller test runs. We designed schedules to limit cross-contamination and protect key actives. Typical packaging uses fiber drums lined with food-grade plastic – we developed custom closures to guard against oxygen and heat during shipping. Experience taught us not to cut corners: more rejections and lost product come from overlooked basics than high-tech shortcomings. As manufacturers, we keep direct communication with sourcing managers and product designers to resolve any technical question that comes up.
Having tested and formulated with a range of plant polyphenols over the years, we see a clear difference between grape skin extract and other botanical sources like pomegranate husk, green tea, or cranberry. Grape brings both color and a specific spectrum of antioxidants, particularly anthocyanins, setting it apart from tannin-heavy or catechin-rich extracts. Drawing on a controlled, single-plant input also reduces the unpredictable variability often seen with multi-botanical or impure sources.
Resellers sometimes confuse grape seed and grape skin extracts. The distinction matters. Seeds yield a higher proportion of oligomeric proanthocyanidins and almost no anthocyanins, resulting in drastically different phytochemical profiles. In final product applications, grape skin extract delivers intense color and a pattern of antioxidant activity that fits both fortification and visual improvement in drinks and foods. Choosing the correct extract for a project means discussing your end goals with someone who knows the harvest source, powder morphology, extraction ratios, and chemical fingerprint.
Food producers reach out for grape skin extract to achieve three main goals: natural color, flavor enrichment, and functional health support through antioxidants. In our experience, beverage formulators especially value consistent anthocyanin content, not just for label claims but for controlled color presentation in wines, juices, energy drinks, and craft sodas. Berry-based blends benefit from the deep purple of grape skin, while candy and dessert manufacturers have moved away from synthetic dyes thanks to reliable natural color in our extract.
Dietary supplement customers look for polyphenol-rich ingredients to support cardiovascular health, healthy inflammation response, and antioxidant protection. In these uses, the clean-label benefits of our extract resonate—unadulterated with flowing agents or color stabilizers found off-the-shelf elsewhere. Adding our grape skin extract to tablets, capsules, and stickpack powders enables clear differentiation in crowded health-food segments. We’ve helped supplement companies reformulate when their previous suppliers changed input specifications or couldn’t provide adequate documentation, so our team regularly assists with technical data and stability studies when needed.
Pet health product companies and natural cosmetic brands also draw on grape skin extract’s ability to bring both color and phytonutrient support. We have worked with R&D teams blending grape skin with other fruit extracts or fortifying animal foods. In these collaborations, application-specific advice on pH requirements, solvent compatibility, and organoleptic testing comes from firsthand processing knowledge, not off-the-shelf handbook summaries.
As primary manufacturers, we invest in process stability and traceability. Being able to pull samples and review logbooks from each batch instills real confidence. Whenever international buyers conduct audits, we open the doors to our extraction, filtration, and drying operations. Documentation reflects actual practice, not just paperwork. This pushes us to not only maintain certifications but to align with evolving food safety standards from major markets.
Direct communication with our technical team often makes a difference. We’ve seen too many projects fail due to miscommunication with traders or repackagers. Our partners join us for pilot runs, on-site formulation trials, and even marketing studies where accurate ingredient data matters. Our legacy batches, archived freeze-dried and vacuum packed, provide reference material for ongoing stability and regulatory checks. If a customer faces product recalls or ingredient queries, we can pull archived samples for re-analysis instead of offering vague explanations.
Each grape harvest brings its own set of challenges. Polyphenol levels may shift with weather or grape variety, requiring careful blending and lot selection before extraction even begins. In one recent season, late rains threatened to lower anthocyanin content in some batches. Our solution draws on skilled evaluators who sort incoming fruit, pulling substandard lots before they enter main extraction. Solvents and parameters adjust to maintain core polyphenol ratios. This level of oversight only comes with long-term staff who understand not just equipment operation but the biology of the grape itself.
Transport and storage are another challenge. Polyphenols degrade with heat and light, so extract protection starts from the minute we seal each drum. We train customers in best warehouse practices and periodically adjust our packaging based on feedback. Manufacturers working in countries with hot climates or spotty infrastructure receive additional packaging layers or expedited shipment options, because maintaining potency matters more than selling cheap extract that fails at the end user’s facility.
Contamination risk can never be ignored. We maintain strict checks for heavy metals, pesticides, and microbial load, since grape skins readily absorb field sprays and environmental contamination. Commitment to clean extracts led us to invest in both in-house and third-party ISO-certified testing, even when regulations didn’t require it. Being a manufacturer means holding accountability for every kilogram delivered.
Responsibility to the end user drives all our decisions, right down to grape selection. Our name stands behind every shipment, not just a certificate or lot number. Having experienced the disappointment of rejected lots, delayed container traffic, or end customers returning finished product for off-flavors, we know that what looks good on spec sheets can fall short in practice. Our extract delivers predictable results for the formulation chemist, the QC analyst, and the brand manager overseeing stability.
We educate customers on extraction differences, storage, and formulation methods, rather than just shipping out pallets. Teams seeking unique color nuances for craft beverages, or high-potency functional supplements, rely on our technical support—ranging from blending advice to shelf-life studies. We routinely collaborate on custom polyphenol ratios, batch blending, and particle sizing, because the right ingredient is the one that fits the final use, not just one that meets a minimum spec.
Tracing how a batch moves from vineyard to production floor teaches lessons each year. Transparency to our customers starts with tours and photos from on-site visits and extends through detailed COAs, process flowcharts, and ongoing open communication about challenges and opportunities. Our technical team stays engaged long after a shipment leaves the plant, supporting batch traceability, regulatory questions, and process troubleshooting. We routinely update our production SOPs to reflect both customer feedback and new discoveries from food science research, always aiming to improve the extract’s performance for evolving market needs.
Collaboration with research universities and third-party labs allows us to keep pace with the latest standards for polyphenol analysis and health claim substantiation. The research team regularly participates in scientific forums, presenting findings about stability, bioavailability, and performance in functional foods and beverages. This knowledge feeds directly into product improvements, guiding adjustments in extraction methods, drying protocols, and blending strategies.
Grape skin is a byproduct of winemaking, and sustainable sourcing matters. We partner with wineries that follow responsible agricultural practices and document grape provenance. By extracting value from this stream, we cut down on waste and promote resource efficiency. Many companies claim green credentials, but we back ours with actual audits, reduction in landfill waste, and improved relationships with local farmers. Our process engineers identify opportunities to cut water and solvent usage each season, and we document emission reductions from shifting to renewable energy for high-energy parts of extraction and drying.
We see the results not just in paperwork, but in the quality and consistency of each shipment. Local communities rely on this partnership, which reinforces our commitment to jobs and flows of benefit beyond the narrow scope of ingredient supply. By keeping sourcing local and managing traceability in-house, we control both supply chain integrity and environmental footprint.
Downstream success for our customers comes from our experience with practical formulation questions. Some clients need clarification on interaction with common excipients, color shift under different pH conditions, or taste impact at specific dosages. Our R&D staff runs real-world trials simulating end product storage – at times uncovering stability concerns or flavor masking issues before they impact the market. By sharing technical insights, we empower brands to optimize their own formulations instead of troubleshooting blind with an anonymous third-party product.
Safety education also plays a role. Natural doesn’t always mean safe at any dose, so our team publishes maximum inclusion guidelines by food type and supplement form, references food safety committees, and supports gap analysis for end product regulatory compliance across different markets. We don’t leave customers guessing about allowable limits or best mixing practices. This support finishes the full loop of product stewardship—from grape selection, through extraction, to finished dose or packaged food.
Every year brings new challenges and higher expectations from global buyers, brand owners, and savvy consumers. Our direct experience, from mud-caked boots in the vineyard to safety glasses on the production floor, gives us a viewpoint few resellers or packagers can offer. We constantly monitor the landscape for shifting regulations, new product applications, and changing assurance needs. The value in our grape skin extract doesn’t stop at 30% polyphenols. It continues with every phone call, batch sample, and technical document shared with our customers.
Supplying the ingredient is just the start. Backing our product with evidence, technical partnership, and real responsiveness closes the loop. This is how we build confidence in both the extract and the end products that carry it into the marketplace, whether as a natural colorant in a drink or a core antioxidant in a supplement.
