Grape pomace is the solid residue left over from pressing grapes during winemaking: skins, seeds, and sometimes stems. Rich in polyphenols, proanthocyanidins (OPC), resveratrol, and fiber, it is valued in health nutrition for its antioxidant and venotonic properties. Discover our range of natural antioxidants.
What is grape pomace?
Grape pomace is one of the most nutrient-rich byproducts of viticulture. Its concentration of active compounds depends on the grape variety, the degree of ripeness, and the extraction process. The seeds are rich in proanthocyanidins (OPCs) —procyanidolic oligomers with exceptional antioxidant properties—while the skins provide resveratrol and bioflavonoids. As a supplement, it is often combined with grape polyphenols to provide a broader spectrum of action.
What active compounds are found in grape pomace?
Grape pomace contains several families of complementary bioactive compounds.
- OPCs (proanthocyanidins): powerful antioxidants derived from the seeds—protect cell membranes and blood vessel walls
- Resveratrol: a stilbene polyphenol found in grape skins—extensively studied for its cardiovascular and antioxidant effects
- Viniferin: an oxidative derivative of resveratrol—studied for its effects on skin pigmentation
- Fiber: contributes to digestive comfort and satiety
- Anthocyanins from grape skins: antioxidant pigments similar to those found in red berries
Grape pomace and blood circulation?
OPCs from grape pomace are recognized for their effect on the integrity of blood vessel walls —the most well-documented benefit.
- They help maintain capillary strength and permeability
- Useful for heavy legs and venous discomfort—see our heavy legs product line
- Works in synergy with vitamin C to support collagen synthesis in blood vessel walls
- Formulated in supplements for venous circulation
- Caution: individuals taking anticoagulants—consult your doctor
Grape pomace and digestive comfort?
Its high fiber and polyphenol content supports digestive comfort and regularity.
- The insoluble fiber in the skins promotes bowel movements and a feeling of fullness
- Polyphenols help maintain the balance of gut flora (documented prebiotic effect)
- Liver support via polyphenols — contributes to healthy liver function without a “detox” effect in the medical sense
- Powder form: can be added to beverages and cold dishes for a daily fiber intake
Grape pomace and skins: benefits?
Grape pomace is a dermo-cosmetic active ingredient recognized for its antioxidant and skin-brightening effects.
- OPCs and resveratrol protect skin cells against oxidative stress (UV rays, pollution)
- Viniferine has been extensively studied for its ability to even out skin tone and reduce pigmentation spots
- In cosmetics: a natural exfoliant (ground grape skins) that enhances the skin’s radiance
- In nutrition: OPCs contribute to the skin’s internal protection and the quality of the complexion
How to use grape pomace?
Grape pomace is available in several dosage forms depending on the intended use.
- Capsules or tablets: standardized OPC extract—the most concentrated form for vascular and antioxidant effects
- Powder: to be mixed into cold beverages—a combined source of fiber and polyphenols
- Cosmetic use: scrubs, masks, and skincare products made with grape seeds and viniferin
- Choose formulas derived from organic farming, free of synthetic solvents
- Pregnant and breastfeeding women: consult a healthcare professional before taking any supplements
