Swanson Grape Seed Extract with MegaNatural Gold is a grape seed extract supplement that supports antioxidant health and vascular function. Key active MegaNatural Gold provides a high polyphenol profile, while grape seed and skin extracts give broad antioxidant coverage. Manufactured in California with water extraction, OU Kosher certified, and GMP compliant, this formula reflects Swanson's commitment to purity and consistency. A daily capsule helps you tap antioxidant benefits as part of a balanced routine.

Available Sizes & Variants:

60 capsules grape seed extract - convenient daily dose.

Benefits & Features:

• Supports antioxidant protection with MegaNatural Gold polyphenols.
• Promotes healthy vascular function by helping maintain endothelial balance.
• Designed for daily use with a simple twice daily dosing schedule.
• Manufactured in California using water extraction and OU Kosher certified processes.
• What really makes this stand out is MegaNatural Gold's purity and standardization, ensuring a consistent level of polyphenols across batches, supported by strict quality controls.

Swanson stands out for quality, not hype. MegaNatural Gold grape seed extract is produced in California from wine and juice grapes using water extraction, with no sulfur dioxide. It carries OU Kosher certification. The formula blends MegaNatural Gold with grape seed powder and grape skin extract for broad polyphenol coverage, standardised to deliver a consistent polyphenol profile. In short, this is a trusted, high quality option within the grapine antioxidant supplements category, and it can sit confidently alongside your vitamin d supplement routine.

MegaNatural Gold Grape Seed Extract (Vitis vinifera) (seed) (standardized to 90% polyphenols), Grapeseed Powder (Vitis vinifera) (seed), Grape Skin Extract 4:1 (Vitis vinifera) (skin), MegaNatural Gold Grape Seed Extract (Vitis vinifera) (seed) (standardized to 90% polyphenols), Grapeseed Powder (Vitis vinifera) (seed), Grape Skin Extract 4:1 (Vitis vinifera) (skin)

• GTIN: 87614142913
• Manufacturer: Swanson
• Categories: Grape Seed Extract SupplementsSwanson
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

As a dietary supplement, take one capsule two times per day with water. Store tightly closed in a cool and dry place. WARNING: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition. Keep out of reach of children. Do not exceed the recommended dose. Do not purchase if the outer seal is broken or damaged. A food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Primary Ingredient Is: Grape Seed Extract (MegaNatural Gold)

Grape seed extract is a plant-derived supplement ingredient rich in polyphenols, recognised for its antioxidant potential.

This formula uses MegaNatural Gold grape seed extract, a high-purity form standardised for polyphenol content and sourced from grapes grown in California.

What Does Grape Seed Extract Do?

Grape seed polyphenols act as antioxidants and may support healthy endothelial function and vascular signaling, contributing to normal cardiovascular function.

Dr. Creasy of the University of California found that grape seed polyphenols can enhance endothelial function and vascular signalling, aligning with evidence on antioxidant activity and vascular health.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Swanson brings a long-standing reputation for quality manufacturing and rigorous sourcing, underpinned by a commitment to GMP practices and programme-level quality controls. The use of MegaNatural Gold, a branded grape seed extract produced in California with a 90% polyphenol standard, reflects Swanson’s focus on purity and potency through advanced, water-based extraction and strict processing standards. This product line demonstrates Swanson’s capability to combine seed and skin extracts for broad polyphenolic coverage, aligned with a scientific approach to antioxidant constituents.

This brand's product-specific capability shines in its clear formulation and dependable dosage framework, delivering a consistent daily intake that supports polyphenol provision and vascular health-related research context. Swanson’s recognised manufacturing heritage and kosher certification further emphasise their quality heritage and regulatory alignment. Our expert team evaluated Swanson for reliability, traceability, and stringent ingredient controls, confirming a robust fit for Welzo’s quality expectations. This makes Swanson the right partner for this grape seed extract supplement, trusted by our clinicians and supported by our guidelines for product purity and safety. This brand was evaluated by our expert team of doctors, nurses, and nutritionists for compliance with our ingredient quality and purity standards.