Grape Leaf Extract, derived specifically from the red leaves of Vitis vinifera L., has achieved substantial commercial prominence within global nutraceutical, cosmetic, and pharmaceutical portfolios. Historically recognized for its traditional uses in Mediterranean regions, scientific validation has elevated this botanical extract to a premier standard for vascular health, microcirculation optimization, and cellular protection. As a major source of bioactive compounds—including polyphenols, flavonoids, anthocyanins, and resveratrol—Grape Leaf Extract exhibits robust radical scavenging activity, stabilizing endothelial membranes and supporting overall cardiovascular vitality.
In the industrial manufacturing ecosystem, Grape Leaf Extract is widely processed into dietary supplement formats (capsules, tablets, softgels) and topical therapeutic products. Modern pharmacological studies indicate that its high concentration of active flavonoids acts directly upon capillary permeability, combating chronic venous insufficiency (CVI) and providing anti-inflammatory relief to tissues affected by circulatory issues. This dual action—exerted systemic and topically—makes it a highly sought-after ingredient for forward-looking brands aiming to fulfill consumer demand for naturally derived, clinically backed wellness and skincare products.
Standardized levels of polyphenols and anthocyanins directly target capillary strength, reducing edema and supporting microvascular circulation.
Decades of pharmacological studies back the efficacy of red vine leaf extract in managing chronic venous insufficiency (CVI).
Complies with stringent food and pharma regulations across North America, Europe, and the Asia-Pacific region.
The international market for botanical ingredients is witnessing an unprecedented transition towards hyper-standardization and traceability. Global consumers no longer accept generic botanical claims; they demand evidence of clinical-grade efficacy, sustainable cultivation, and the total absence of industrial contaminants. In this context, Grape Leaf Extract has transitioned from a niche herbal remedy to a primary active ingredient in mainstream vascular and healthy aging formulations.
Crucial growth patterns include the development of synergies between Grape Leaf Extract and other complementary vasoprotective agents (such as Horse Chestnut and Gotu Kola). The emergence of the "nutricosmetics" sector—beauty-from-within concepts—has also expanded the applications of this ingredient. Its ability to combat oxidative stress and prevent collagen degradation from within has led to its inclusion in premium oral skin-firming formulations. Furthermore, the global shift toward clean-label and vegan-friendly products has forced manufacturers to eliminate chemical excipients, utilizing green extraction technologies like ethanol/water extraction instead of harsh organic solvents.
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB), is the China Leading manufacturer and exporter of herbal extracts and its derivatives for more than 20 years. As a pioneer in the modernization of plant chemistry, TRB combines research and development, state-of-the-art production, and global commercialization. Our comprehensive product portfolio covers premium Herbal extracts, Sweeteners, Nootropics, Vegetable & Fruit Juice powder, Essential oil, and Bee Products.
Driven by technological excellence and dedication to the plant extract industry, TRB was honored with the 2026 "Global Biotechnology and Life Sciences Award" - "Best Global Herbal Extract Provider 2026". This recognition highlights our commitment to delivering superior, traceable, and bio-efficacious ingredients to our clients worldwide.
Currently, TRB operates three specialized production facilities: a modern herbal extract facility, a dedicated bee product facility, and an advanced animal-derived extract factory. Our facilities are backed by an extensive certification framework, including GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER Certificates, ensuring uncompromised compliance with local and international regulations.
Procurement directors and product developers at global pharmaceutical and nutraceutical enterprises encounter severe regulatory challenges when sourcing botanical raw materials. Quality control demands extend far beyond basic identification tests. Enterprises require batch-to-batch consistency, defined chemical profiles verified by high-performance liquid chromatography (HPLC), and a comprehensive regulatory documentation package (including DMF, SDS, and stability studies).
A primary concern for global buyers sourcing Grape Leaf Extract is the control of contaminants. The product must comply with rigorous international regulations concerning pesticide residues (under EP and USP standards), polycyclic aromatic hydrocarbons (PAH4), and heavy metals (Lead, Cadmium, Mercury, Arsenic). Furthermore, as supply chains face increasing pressures, global buyers require raw material suppliers that can provide continuous inventory, transparent lead times, and comprehensive logistical reliability. Customization—such as adjusting extract ratios or active marker percentages (like total polyphenols or resveratrol levels)—is also crucial to meet precise end-product specifications.
China's plant extraction industry has undergone a massive technological shift, moving from labor-intensive processing to advanced "Factory 4.0" automation. At TRB, our manufacturing processes integrate automated closed-loop systems, real-time chromatographic analysis, and high-efficiency spray drying. This digital integration guarantees that active compounds in the raw materials are preserved during extraction, achieving high yields and consistent active profiles.
Furthermore, China's extensive raw material supply network and advanced logistical infrastructure provide unparalleled protection against supply chain disruptions. By establishing direct contracts with raw material growers and implementing strict quality checks at the source, TRB maintains complete control over the supply chain. This vertical integration allows us to optimize production costs, control quality at every stage, and pass these savings directly to our global partners, ensuring competitive pricing and reliable supply.
Grape Leaf Extract can be formulated into a wide range of products across diverse industries, allowing companies to target specific consumer needs:
Commonly formulated into tablets or softgels designed to improve lower-limb circulation, combat heavy legs, and alleviate symptoms of varicose veins and CVI.
Utilized in topical creams, serums, and gels. Its strong antioxidant action protects dermal structures from UV damage and premature collagen breakdown.
Incorporated into concentrated beauty shots, RTD beverages, and instant powder mixes to promote systemic antioxidant defense and vascular vitality.
The main active constituents of Vitis vinifera leaf extract are polyphenols, flavonoids (specifically quercetin-3-O-beta-D-glucuronide and isoquercitrin), and anthocyanins. These compounds act synergistically to reinforce capillaries, exert strong antioxidant effects, and inhibit inflammatory pathways.
We primarily utilize clean, eco-friendly food-grade water and ethanol extraction systems. This process avoids chlorinated or toxic organic solvents, ensuring compliance with strict global dietary supplement and cosmetic safety guidelines.
Every production batch undergoes comprehensive testing at our certified in-house laboratories. We utilize HPLC (High-Performance Liquid Chromatography) to verify active compound percentages, and UV-Vis spectrophotometry to ensure consistency. Standardized Certificate of Analysis (CoA) records are provided with every shipment.
Yes, our extract complies with EP, USP, and FDA standards regarding heavy metals, pesticide residues (covering over 400 screen compounds), and microbiology limits. We also test for Polycyclic Aromatic Hydrocarbons (PAH4) and Aflatoxins to ensure clean-label compatibility.
Absolutely. We offer customization options to meet specific formulation requirements. We can supply varying ratios of raw leaf-to-extract (e.g., 4:1, 10:1) or standardize to specific marker levels (e.g., minimum 4% total polyphenols or specific anthocyanin counts).
Our manufacturing plants operate under a comprehensive quality management system certified by GMP, ISO, HACCP, ORGANIC, FDA, HALAL, and KOSHER. This ensures that our botanical extracts meet the strict regulatory demands of international buyers.
Under optimal storage conditions (dry, dark, cool locations in unopened original drums), our Grape Leaf Extract has a certified shelf life of 24 months. We package the powder in double-lined food-grade polyethylene bags sealed inside heavy-duty fiber drums.
Standard stock specifications can be ready for dispatch within 5–7 working days. For custom formulation requests or large-scale contract manufacturing runs, lead times typically range between 15 and 25 days, depending on raw material sourcing and customized assay requirements.
Contact our specialists to request product specification sheets, Certificate of Analysis (CoA) documentation, sample lots, and bulk price quotes.
Fax: 86-25-52867040
