Trans-Resveratrol 60 capsules.

200 mg trans-resveratrol with 80 mg polyphenols, from Japanese knotweed and grape. A very powerful antioxidant that neutralises free radicals (claim on hold).

Why this product?

200 mg trans-resveratrol and 80 mg polyphenols per capsule

ResVinol-25®, from Japanese knotweed and red wine matrix

Very powerful antioxidant, to protect healthy cells*

Taking medication? Only under medical supervision

1 capsule a day with a meal, vegan

Regular price €29,95
Regular price Sale price €29,95
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60 capsules · 60 days · €0.50 per day
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Trans-Resveratrol - Plant Polyphenol Complex - 200 mg

Trans-Resveratrol 60 capsules.

Order before 22:00, processed the same day
Free shipping from €85.00
Money-back guarantee
€29,95
€0,49 per serving
Quantity
01 / The story

Resveratrol from a plant the Netherlands would rather be rid of.

01, The story
02, Form & figures
03, Ingredients & dosage
04, What we may claim
05, Quality & production
06, Frequently asked questions
Reading time · 6 min

Trans-Resveratrol from Doctor's Best contains ResVinol-25®: 200 mg trans-resveratrol and 80 mg polyphenols per capsule, from the root of Japanese knotweed and the red wine matrix. Trans-resveratrol is a very powerful antioxidant that neutralises free radicals in cells and tissues*. Only trans-resveratrol is absorbed by the body. (*claim on hold)

Japanese knotweed

Japanese knotweed was brought to Europe in the nineteenth century by Philipp Franz von Siebold, a physician in Dutch service on Dejima, and sold as an ornamental plant through his nursery in Leiden. Now it is one of the most troublesome invasive plants in the Netherlands: it grows through asphalt and foundations. Its roots, however, are one of the richest sources of resveratrol.

Made in the United States

Doctor's Best uses ResVinol-25®, standardised to 25% trans-resveratrol and 20% polyphenols, tested for heavy metals, micro-organisms and pesticides. The packaging protects against UV light, which converts trans-resveratrol into the cis form. The product is vegan.

Facts about this product

One capsule contains 200 mg trans-resveratrol. Take the capsule with a meal. If you take medication, use this product only under medical supervision.

Trans-Resveratrol from Doctor's Best

Trans-Resveratrol with ResVinol-25® is an extract with very high concentrations of polyphenols (20%) and trans-resveratrol (25%) from the so-called red wine matrix and the root of the Japanese knotweed, or Polygonum cuspidatum. The red wine matrix consists of sugars, acids, ethanol and tannin. Trans-Resveratrol with ResVinol-25® is a very powerful antioxidant and neutralizes free radicals in cells and tissues. These capsules from Doctor's Best contain a whopping 200 mg of trans-resveratrol and 80 mg of polyphenols per capsule.

Benefits

Contains 200 mg trans-resveratrol with ResVinol-25® and 80 mg polyphenols. Resveratrol has an antioxidant effect, protecting healthy cells and tissues (claim on hold). Contains no gluten or soy, GMO free. Suitable for vegans and vegetarians.

A high quality resveratrol product

Resveratrol exists in trans- and cis-forms. Trans-resveratrol and cis-resveratrol differ from each other. Research shows that only trans-resveratrol is absorbed by the body and therefore has high bioavailability and efficacy. Therefore, it's important to choose a trans-resveratrol form with a significant dosage when choosing a resveratrol product. Doctor's Best's formula contains a whopping 200 milligrams per capsule. Trans-resveratrol can be converted into the ineffective cis-resveratrol under the influence of ultraviolet light. The packaging of Doctor's Best Trans-Resveratrol protects the trans-resveratrol from ultraviolet light.

Why Trans-Resveratrol with ResVinol-25?

ResVinol-25® is a standardized form of trans-resveratrol of exceptionally high quality. Each batch of capsules is manufactured using ProfileProven™ quality testing, guaranteeing the purity and high dosage of each extract. The product is rigorously tested for heavy metals and potential contamination from bacteria, fungi and pesticides. The final product is guaranteed to meet Doctor's Best's high-quality standards.

What is resveratrol anyway?

Resveratrol (3,4',5-stilbenetriol) is a natural product belonging to the group of non-flavonoid polyphenols, also known as stilbenes. Its beneficial properties became apparent when vines and other plants produced resveratrol in response to stress, UV radiation and microorganisms.

About Doctor's Best

Doctor's Best is a company that produces nutritional supplements based on scientific research into healthy nutrition and the latest scientific insights. It was founded in 1990 by a physician driven by his interest in healthy nutrition. Doctor's Best's product range now includes over 200 high-quality products. Only brand-name ingredients are used, and the supplements are thoroughly tested throughout the production process, from raw material to finished product. The production process is fully based on Current Good Manufacturing Practice (cGMP) guidelines. The ingredients for Doctor's Best products are sourced from all over the world. This is achieved through collaboration with nutritional scientists, and the ingredients are carefully developed and researched. This results in high-quality finished products.

Standardised brand products

In its products Doctor's Best almost exclusively uses proprietary and standardized brand materials of official trademarks that have been extensively researched. The authenticity of these ingredients is guaranteed in all products. Doctor's Best never uses alternatives. This results in a qualitatively superior line of supplements with very high bioavailability.

02 / Form & figures

Figures from the label.

Per capsule, as stated by Doctor's Best.

200 mg
Trans-resveratrol
ResVinol-25®.
80 mg
Polyphenols
From knotweed and grape.
25%
Trans-resveratrol
In the extract.
60
Capsules
Per jar.
Ingredients and use

Per capsule.

Per capsule Amount %RI Source
Trans-resveratrol 200 mg* ResVinol-25®, from Japanese knotweed
Polyphenols 80 mg* From red wine matrix (Vitis vinifera) and Japanese knotweed

Label · other ingredients: plant-based capsule (modified cellulose), rice powder, silicon dioxide, magnesium stearate · dosage: 1 capsule a day with a meal · if you take medication, only under medical supervision · net contents 60 capsules

Product information

How to use it. And everything on the label.

How to use

Take 1 or more capsules daily with meals, or as recommended by a physician or therapist.

Contents
60 capsules
Allergens
None
Other ingredients
Modified cellulose (vegetarian capsule), rice powder, silicon dioxide, magnesium stearate (vegetable source)
Storage
Store in a cool, dry and dark place.
Do not exceed the recommended daily dose.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
Keep out of the reach of young children.
* RI = reference intake according to European standards.

Reviews

What we may claim

One claim for resveratrol, on hold.

Framework
EU 432/2012
Art. 28(5)
Subject
Resveratrol
(1 capsule a day)

In Europe, we may only make health claims about food supplements that have been assessed and authorised by the EFSA, or claims for plant extracts that fall under the transitional arrangement.

For resveratrol from knotweed there is a claim on hold, awaiting assessment. The other descriptions on this page come from Doctor's Best's product information.

Resveratrol contributes to the protection of cells against stress.

PENDING · NOT YET AUTHORISED BY EFSA
AND WHAT WE ARE NOT ALLOWED TO SAY
  • -
    No claim whatsoever about curing, preventing or treating diseases. A supplement is not a medicine and we do not present it as one.
  • -
    No substitute for medical advice. If you take medication, are pregnant or have a medical condition, consult your doctor.
  • -
    No substitute for a varied diet. A supplement is an addition to healthy eating, not an alternative.
AWAITING ASSESSMENT

A scientific assessment by the EFSA is still ongoing for a number of plant substances. Claims for these may be used under a transitional arrangement and are marked on this page as on hold.

Professionally reviewed

Read and checked by a fellow professional.

Diederik Jansen

Independent researcher · editorial review

The content of this page has been checked for factual accuracy, from the composition to compliance with the European rules on health claims.

The content of this page has been checked for factual accuracy, from the composition to compliance with the European rules on health claims.

Curator's note
Resveratrol from the root of a rampant weed.
Selected by Ergomax

200 mg trans-resveratrol per capsule, from Japanese knotweed and grape.

If you take medication, use this product only under medical supervision. Not during pregnancy or breastfeeding. Do not take more than one capsule a day.

About the brand

Doctor's Best, briefly explained.

Doctor's Best

Branded raw materials with a name.

Doctor's Best is an American supplement brand, founded in 1990. The range comprises more than 200 products. A distinctive feature is that the brand often works with raw materials from specialised suppliers that are sold under their own brand name, such as MenaQ7®, Suntheanine® and OptiMSM®. As a result, the label shows exactly which raw material is inside.

All products from Doctor's Best
Quality and production

Branded ingredients, tested at every step.

Doctor's Best often uses branded ingredients: raw materials from specialised suppliers, delivered under their own brand name, such as MenaQ7® and OptiMSM®. That way you know exactly which ingredient you are getting. All products are made according to cGMP, the American guidelines for good manufacturing practice.

Raw materials 01
Branded ingredients
Such as MenaQ7® and OptiMSM®
Production 02
According to cGMP
Current Good Manufacturing Practice
Testing 03
Tested at every step
From raw material to end product
Range 04
More than 200 products
Since 1990
08 / Frequently asked questions

What you still wanted to know.

A polyphenol from the stilbene family, found in grape skins, red wine, peanuts and blueberries, among others. Each capsule contains 200 mg trans-resveratrol.

From the root of Japanese knotweed (Polygonum cuspidatum), supplemented with a red grape extract (ResVinol-25®) that provides 80 mg polyphenols per capsule.

One capsule a day with a meal, or more if your doctor or therapist advises it. Resveratrol dissolves poorly in water; a meal containing some fat helps. At one a day, a jar of 60 capsules lasts two months. The product is vegan.

If you take blood thinners or other medication, or are pregnant or breastfeeding, consult your doctor first.

They are two forms of the same molecule. Trans-resveratrol is the form that plants make and that the body absorbs. Under UV light, trans-resveratrol changes into cis-resveratrol. That is why it comes in light-tight packaging.

Can't find your question? We're happy to help.
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09 / Combines well with

A routine, not a standalone product.

Quercetin Bromelain from Doctor's Best contains another polyphenol, from the flavonol group.

Trans-resveratrol 200 mg supplement in its packaging
Trans-Resveratrol
Quercetin with bromelain supplement in its packaging
Quercetin Bromelain
Two polyphenols

Resveratrol and quercetin.

  • Resveratrol: 200 mg trans-resveratrol
  • Quercetin: 500 mg with bromelain
There are no authorised claims for quercetin; for resveratrol there is a claim on hold.
€70,90

Trans-Resveratrol €29,95 + Quercetin Bromelain €40,95