Get our buying guides
One email a month with new buying guides written for Canadian homes. No daily promotions, unsubscribe any time.
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order
Free shipping across Canada, no minimum · 30-day returns with a prepaid label · WELCOME10 = 10% off your first order





Free shipping across Canada, no minimum. Orders packed within 1–2 business days.
Free shipping across Canada with no minimum order. See shipping estimates and return conditions. To request help or a return, contact Kelorix with your order number.
Free shipping across Canada with no minimum order. See shipping estimates and return conditions. To request help or a return, contact Kelorix with your order number.
NOW Grape Seed Extract Maximum Strength is a concentrated dietary supplement delivering 500 mg grape seed extract standardized to at least 90% polyphenols in easy-to-take vegetarian capsules.
This high-potency formula provides oligomeric proanthocyanidins (OPCs), the water-soluble polyphenols found in grape seeds, in a concentrated format designed for adults seeking more intensive antioxidant support than regular-strength extracts. NOW’s product is vegan, Non-GMO, gluten-free and manufactured under GMP standards. Natural color variation may occur between batches.
The 500 mg capsules are concentrated to deliver a minimum of 90% polyphenols, giving over four times the grape seed extract per serving versus NOW’s regular-strength option. That means a higher OPC content per capsule for those preferring a stronger extract.
Grape seed OPCs are studied for their antioxidant activity and their potential to support normal tissue health, including vascular and connective tissues, by helping manage oxidative and metabolic stress. This supplement supports a balanced immune response tied to everyday metabolic challenges, without claiming to prevent or treat disease.
Follow label directions or your healthcare professional’s guidance for dosing. As a concentrated extract, consider speaking to a provider before use if you are pregnant, nursing, taking medications, or have a medical condition. Store in a cool, dry place and keep out of reach of children.
NOW manufactures this grape seed extract in facilities following GMP protocols with validated testing for stability and potency. The product is suitable for many dietary preferences and allergen needs, supporting use by those avoiding common allergens and animal products.
Who is this for: This maximum-strength grape seed extract is intended for adults seeking a higher-dose botanical polyphenol supplement, especially those wanting a vegan, allergen-conscious product manufactured to GMP standards. It’s a fit for people who prefer a concentrated OPC source for everyday antioxidant support and who consult with healthcare professionals when combining supplements with medications or specific health conditions.
Grape Seed Extract, Hypromellose (Cellulose Capsule), Microcrystalline Cellulose and Stearic Acid (Vegetable Source).
Q: How much polyphenol concentration is in each capsule?
A: Each 500 mg capsule is standardized to a minimum of 90% polyphenols, including oligomeric proanthocyanidins.
Q: Is this product suitable for vegetarians and people with allergies?
A: Yes — the formula is vegan, Non-GMO, and free from gluten, soy, dairy, egg, and nuts.
Free shipping across Canada with no minimum order. See shipping estimates and return conditions. To request help or a return, contact Kelorix with your order number.
One email a month with new buying guides written for Canadian homes. No daily promotions, unsubscribe any time.
Thanks for subscribing!
This email has been registered!