Grape Seed Extract is a premium botanical raw material extracted from the seeds of grapes. In traditional herbal theories, grape seeds are recognized to benefit qi and blood circulation, strengthen bones and tendons, promote diuresis, and help relieve symptoms including qi and blood deficiency, lung deficiency with cough, night sweats, palpitations, rheumatism, gonorrhea and edema.
Modern scientific research has confirmed that the core active ingredient of grape seed extract is oligomeric proanthocyanidins (OPCs). These powerful bioactive compounds deliver outstanding antioxidant properties. They help neutralize free radicals in the human body, reduce oxidative stress, and assist in lowering blood cholesterol levels. As a high-efficiency natural antioxidant, grape seed extract has attracted wide attention in the health ingredient industry.
This product appears as fine off-white to light brown powder with good powder flow property. It is partially soluble in water and easily dissolved in ethanol. It is commonly applied in dietary supplements, functional foods, nutraceuticals, skincare and cosmetic formulations.
Our grape seed extract is produced through a strict process of crushing, solvent extraction, purification, concentration and spray drying. We can supply multiple specifications with different proanthocyanidin contents to meet varied customer requirements. Standard packing is 25kg per drum with inner double PE bags. The minimum order quantity is 1 FCL.

| Product Name: | Grape Seed Extract |
| Synonyms: | Extract of grape leaf;Unii-T3pw93ib4q;Vitis vinifera L. (vitaceae), extract;Vitis vinifera leaf extract;Grape Seed Extract, 95 Percent, Powder;GRAPE SEED;GRAPE SEED EXTRACT;Grape seed dry |
| CAS: | 84929-27-1 |
| MF: | C32H30O11 |
| MW: | 590.574 |
| EINECS: | 284-511-6 |
| Product Categories: | Inhibitors;Natural Plant Extract;Plant extracts |
| Mol File: | 84929-27-1.mol |
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| Grape Seed Extract Chemical Properties |
| density | 0.961g/cm3 at 20℃ |
| vapor pressure | 0.003Pa at 60℃ |
| FEMA | 4045 | GRAPE SEED EXTRACT |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Soluble in DMSO |
| form | Solid:particulate/powder |
| color | Brown to reddish brown |
| InChIKey | VWKAFYWVDIOMSL-PSXRJWADNA-N |
| SMILES | [C@H]1(C2=CC=C(O)C(O)=C2)OC2=C(C(O)=CC(O)=C2)[C@@H](C2C3O[C@H](C4=CC=C(O)C(O)=C4)[C@@](O)(C)CC=3C(C)=CC=2O)[C@@H]1O |&1:0,18,22,31,41,r| |
| LogP | 6.5 at 25℃ and pH5-6 |








