The definitive industry briefing on molecular composition, commercial viability, and optimal processing methods for global manufacturing partners.
Grape Seed Oil (GSO), derived from the seeds of wine grapes (Vitis vinifera), is a highly prized botanical lipid rich in essential fatty acids, primarily linoleic acid (omega-6), which accounts for 65% to 75% of its total lipid profile. For cosmetic formulators and nutraceutical brand owners, sourcing from a vetted wholesale grape seed oil supplier ensures a dependable concentration of bioactive compounds. This profile includes oligomeric proanthocyanidins (OPCs), tocopherols (Vitamin E), and phytosterols.
These constituents act in synergy to support cutaneous barrier repair, reduce oxidative stress, and serve as light, non-comedogenic carrier bases. Unlike heavier oils, grape seed oil exhibits a dry, velvety skin-feel, making it the industrial standard for premium moisturizers, hair care systems, and clean-label dietary lipids.
Procuring entities must align their material specs with target demographics. Cold-Pressed Grape Seed Oil is obtained by mechanical expulsion below 49°C, retaining the raw color, nutty aroma, and the maximum load of native antioxidants (tocopherols and polyphenols). This grade is highly sought after by clean-beauty, natural wellness brands.
Conversely, Refined Grape Seed Oil undergoes gentle neutralization, bleaching, and deodorization (RBD). This process optimizes stability, neutralizes color to a pale straw-yellow, and delivers a highly consistent carrier fluid suited for high-temperature formulations, clear serum emulsions, and mass-market culinary application. Understanding this trade-off is critical for portfolio planning and regulatory clearance.
A global leader in plant extraction, combining 20+ years of manufacturing scale with unmatched quality validation.
Nanjing Tong Rui Bio-Tech Co., Ltd. (TRB) stands as China’s leading manufacturer and exporter of botanical extracts and active lipids for over 20 years. Our foundation is built on combining intensive research and development with scalable production and direct international supply lanes.
Over the years, TRB's rapid development and dedicated service to the health food, cosmetic, and pharmaceutical industries have earned us significant global recognition. We are proud to have been awarded the prestigious 2026 "Global Biotechnology and Life Sciences Award" - "Best Global Herbal Extract Provider 2026".
TRB's product ecosystem comprises standard herbal extracts, natural sweeteners, nootropics, fruit/vegetable juices, essential oils, and premium bee products. Currently, we operate three distinct specialized factories, each handling a specialized line of extracts (herbal extract, bee products, and animal derivative processing).
Years of Industry Expertise
GMP-Compliant Production Plants
Exporting Countries & Regions
Award Winner for Global Biotech Excellence
Ensuring absolute safety, traceability, and regulatory compliance across all major international markets.
For procurement officers representing international enterprises, quality assurance is non-negotiable. Nanjing Tong Rui Bio-Tech operates under rigorous international quality frameworks. Our production lines hold complete certification profiles, including GMP, ISO, HACCP, ORGANIC, FDA registration, HALAL, and KOSHER Certificates.
Every single batch of our Grape Seed Oil is subjected to a battery of analytical procedures. We utilize gas chromatography-mass spectrometry (GC-MS) to verify fatty acid distribution profiles, ensuring linoleic and oleic acid fractions comply with USP/EP monographs. Heavy metals, residual solvents, and polycyclic aromatic hydrocarbons (PAHs) are monitored down to parts-per-billion (ppb) limits, removing import friction at North American and European borders.
TRB is committed to natural raw materials, ensuring that we trace each seed source from contracted organic vineyards. This raw material security protects our bulk buyers from supply chain shocks and adulteration risks commonly associated with multi-tiered commodity brokers.
| Parameters Checked | USP / EP Limits | TRB Typical Analysis |
|---|---|---|
| Linoleic Acid (C18:2) | 58.0% - 78.0% | 69.8% |
| Oleic Acid (C18:1) | 12.0% - 28.0% | 17.5% |
| Acid Value (mg KOH/g) | ≤ 2.0 (refined) | ≤ 0.3 |
| Peroxide Value (meq/kg) | ≤ 10.0 | ≤ 2.5 |
| Heavy Metals (Pb, As, Cd) | ≤ 0.1 ppm | Not Detected (ICP-MS) |
How TRB integrates local agricultural density, infrastructure, and advanced technology to deliver competitive, high-purity oils.
By capturing grape pomace directly from China's premier viticultural regions (such as Xinjiang, Ningxia, and Hebei), TRB controls raw material freshness. Processing grape seeds immediately after crushing prevents lipid oxidation and maintains low initial acid values.
With three manufacturing plants, TRB runs highly optimized extraction processes. Our continuous automated solvent extraction and refining lines decrease fuel and solvent usage, allowing us to pass significant cost savings to our wholesale partners globally.
Global procurement requires a supply partner that can handle geopolitical changes and port restrictions. TRB utilizes dual-port shipping strategies (from Shanghai/Ningbo ports) and maintains steady contract pipelines to ensure continuous volume delivery.
A look at how Grape Seed Oil is being adapted across diverse sectors to satisfy modern consumer demands.
Clean-Label Cosmetics: Grape Seed Oil's light consistency makes it the go-to base for clean-label skincare. Brands use it as an emollient in lightweight facial oils, anti-acne formulations (due to its high linoleic acid content which balances sebum), and body massage oils.
Nootropics & Longevity Products: Leveraging TRB’s unique R&D focus on anti-aging and brain health, grape seed oil serves as a bio-available lipid carrier for fat-soluble nootropic powders, ensuring maximum absorption rates for sublingual and softgel delivery forms.
Sustainable Food Systems: In food service and processing, refined grape seed oil's high smoke point (approx. 216°C / 421°F) makes it a preferred option for functional baking, dressings, and frying, aligning with non-GMO and heart-healthy label requirements.
Direct technical answers to help you streamline your procurement evaluation process.
Pioneer Bio-Park, No 127 North Road Xishan Bridge, Yu Hua Tai District, Nanjing, China 210012
Phone: 86-25-52863298
Mobile: 86-13770771528
86-25-52867040
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