Purple Defense with Resveratrol

  • Powerful antioxidant blend
  • Contains resveratrol
  • Category: Brain, Heart & Mitochondria
  • 400 mg of antioxidants and 50 mg of resveratrol
  • 90 capsules
Out of stock
EUR 71.95
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Purple Defense with Resveratrol by Dr. Mercola

Purple Defense is a unique and powerful antioxidant blend by Dr. Mercola containing resveratrol. The product contains organic blackcurrant, grape seed extract, grape skin extract, organic plum extract and resveratrol. Antioxidants are substances that protect healthy cells and tissues in the body from free radicals. Free radicals are continuously created in our body during energy production (ATP) by the mitochondria. An excess is not desirable for our cells.

Resveratrol from Japanese knotweed root

Each Purple Defense capsule contains 50 mg of resveratrol from Polygonum cuspidatum, or Japanese knotweed root extract. This extract is standardized to 50% resveratrol ensuring that each capsule contains a constant amount. One capsule corresponds to the amount of resveratrol in no less than 39 glasses of wine of 250 ml each! Can’t get that amount drinking wine.


  • Powerful antioxidant blend
  • Resveratrol has an antioxidant effect*
  • Resveratrol contributes to the protection of healthy cells and tissues*
  • Contains no soy or gluten; GMO-free

* = Health claim pending European Commission approval

What is resveratrol anyway? 

Resveratrol (3, 4', 5-stilbene triol) is a natural product belonging to the group of non-flavonoid polyphenols called stilbenes. Its beneficial properties became apparent as vines and other plants were shown to produce resveratrols in response to stress, UV rays and microorganisms. These beneficial polyphenols have a wholesome effect on mitochondrial functions. 

Hormetic effects of resveratrol

Some special types of antioxidants act through a principle called hormesis. Hormesis, or hormetic effects, means that a substance is harmful in high doses, but works favorably in the body at low doses. For example, many fruits and vegetables are full of natural compounds called polyphenols. The plant produces these polyphenols to ward off pests and predators. The polyphenols are toxic to the predators, but since we as humans are much larger and take them in much smaller doses, they actually cause our bodies to develop a protective response that makes us stronger.

The power of Purple Defense

The strength of this Purple Defense product lies in the combination of all strong ingredients. The grape seed and peel extracts are produced in accordance with a patented process called OxyPhyte®. This unique process concentrates the antioxidant power of the specific compounds and maintains the high ORAC value. This is possible by extracting the phytonutrients with maximum activity. The OxyPhyte process extracts the very powerful water-soluble antioxidants from the grapes -- not only from the grapes, but from the seeds as well.

Organic blackcurrant powder contains additional healthy nutrients and quercetin, a polyphenolic compound with powerful antioxidant properties. 

Organic plum extract is an important source of fiber, potassium, vitamin C and other nutrients. 

Japanese Knotweed Root Extract contains 50 mg of resveratrol per capsule and contains additional sources of water-soluble antioxidants, among other nutrients.

About Dr. Mercola

A doctor with a clear mission, in 1997 osteopath Dr. Joseph Mercola founded the website www.mercola.com, one of the world's most visited natural health websites, with the goal of changing the existing medical paradigm and educating people about natural health. Mercola is an absolute authority in the field. Healthy nutrition, exercise and supportive supplementation occupy a foundational place in his vision. From his holistic view, Mercola developed its own high-quality nutritional supplement line. Dr. Mercola’s special products are of very pure origin and of high bioavailability.

More Information
Product Name
Purple Defense with Resveratrol
Dr. Mercola
90 capsules
User Instructions

Take 1 capsule daily or as recommended by a healthcare practitioner.

Ingredients per Serving

400 mg Dr. Mercola Antioxidant blend: black currant fruit, grape seed extract, grape skin extract, plum fruit extract, 50 mg Resveratrol (from Polygonum cuspidatum) root extract.

EU Norm
*RDA = Recommended Daily Allowance
Other Ingredients

Hydroxypropyl methylcellulose (capsule)

Storage: see label. Keep out of the reach of children. Consult an expert before use in case of pregnancy, breastfeeding, illness or medication.
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