Purple Defense, Premium Antioxidant - 90 Caps - Dr Mercola

Resveratrol, Japanese Knotweed Root Extract, Purple Defense Proprietary Blend Organic Black Currant Fruit, Grape Seed Extract, Grape Skin Extract, Organic Plum Fruit Extract

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Adults should take 1 capsule of this dietary supplement per day. For children over the age of 4, follow the instructions given by a physician. Take 1 to 2 capsules daily or as directed by your healthcare practitioner

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

1. Purple Defense by Dr. Mercola provides a powerful blend of antioxidants that can help support a healthy immune system and protect against free radical damage.
2. This premium antioxidant supplement contains a variety of phytonutrients from purple fruits and vegetables, which have been shown to have anti-inflammatory properties and may help promote cardiovascular health.

The Active Ingredient Is: Resveratrol (from Japanese Knotweed root extract, standardized to 50%)

Resveratrol is a polyphenolic compound recognised for its antioxidant properties and (found in some) plant-based extracts.

This form is (sourced from) Japanese Knotweed root extract, standardised to 50 percent, and is (blended) with other polyphenols in the formulation.

What Does Resveratrol Do?

Resveratrol supports antioxidant defences and may contribute to physiological processes involved in vascular function, as (observed) in scientific literature. This aligns with EFSA-style interpretations of polyphenol activity in healthy individuals.

Dr. Tome-Carneiro of the University of Valencia found that resveratrol-containing interventions can influence vascular function and oxidative stress in healthy adults, (backing) its role as part of a daily antioxidant approach.

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

Dr Mercola stands out to Welzo for its science‑driven take on antioxidant blends, with Purple Defense bringing a polyphenol‑rich blend that matches our focus on formulation know‑how and product development. This brand consistently lays out a clear production focus on natural multi‑component antioxidants, and we recognise its commitment to a GMO‑free, gluten‑free and soy‑free profile that supports a straightforward, trustworthy ingredient story. For us, that clarity speaks to a disciplined quality mindset that resonates with Welzo's standards.

This brand’s product development is shown through a targeted blend of grape seed extract, grape skin, black currant and plum extracts with resveratrol, made for everyday antioxidant intake. We decided on Dr Mercola because our assessment highlighted a consumer‑friendly quality story and a production footing in the USA that works with our internal vetting process. Our medical team and quality framework have checked partnerships like this to ensure alignment with our medical team and our quality certification process, boosting trust and safety while helping this supplement’s fit within Welzo’s curated range.