Natural Factors Natural Factors - ResveratrolRich Super Strength Resveratrol Concentrate, 60 vcaps
Natural Factors ResveratrolRich Super Strength Resveratrol Concentrate - Resveratrol is a type of polyphenol, an antioxidant compound found in certain plants. High concentrations of resveratrol are found in grapes and Japanese knotweed. Resveratrol has shown good results in helping to improve cardiovascular health, and protect against neurological deterioration and other diseases of aging.
Price
Regular Canadian retail price: $37.98 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.
In stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.
Why people keep reordering it
- Year-round defense
- Daily support for a resilient immune response.
- Antioxidant support
- Helps protect cells from everyday oxidative stress.
- Tradition meets research
- Time-tested ingredients in clinically informed doses.
Best suited to: anyone building a polyphenol into a daily routine, people whose interest is vascular measures, someone who wants one polyphenol, not a blend.
What the research supports
One capsule provides 250 mg of resveratrol from grape and Japanese knotweed extract, concentrated from 500 mg of raw material. The 60 capsules last two months.
Vascular trials use 150 to 500 mg of resveratrol daily.
- Blood flow (evidence: moderate, from randomized controlled trial, meta-analysis)
- Resveratrol is thought to help blood vessels relax and widen, and doses of 150 mg and up have improved that flow response against placebo in several small trials.
- Blood pressure (evidence: mixed, from randomized controlled trial, meta-analysis)
- The same vessel-relaxing effect is proposed to ease systolic pressure a little, but pooled data show a modest effect while individual trials disagree with each other.
- Longevity (evidence: limited, from laboratory studies, animal studies)
- Resveratrol is proposed to switch on cell-protection genes tied to aging, but almost all of that evidence comes from yeast, worms and rodents, not people.
Read the literature: Blood flow on PubMed, Blood pressure on PubMed, Longevity on PubMed.
Is it right for you
Worth it if
- Anyone building a polyphenol into a daily routine
- One 250 mg capsule a day for two months is about the simplest way to run resveratrol at a trial-level dose.
- People whose interest is vascular measures
- The flow-mediated dilation trials used 150 mg and up, which this clears with room to spare.
- Someone who wants one polyphenol, not a blend
- This is resveratrol alone from a dual grape and knotweed source, with nothing else to muddy what you are testing.
Look elsewhere if
- Someone who wants broad polyphenol coverage
- A grape seed or mixed berry extract covers a wider range of polyphenols for less money, though none of them at a single trial-level dose.
- Anyone expecting to feel a difference
- Nothing in this category produces a sensation. If you want something you can feel, look at the energy or sleep shelves instead.
- People buying it for a longevity effect
- Be clear-eyed about it. The lifespan work is in yeast, worms and mice. In humans the measured effects are on blood vessel and metabolic markers, not on lifespan.
What to expect
Nothing perceptible, at any point. Resveratrol trials measure blood vessel dilation, blood pressure and glucose markers over four to twelve weeks. If you need feedback from a supplement to keep taking it, this is not the one.
How it compares
- Compared with a grape seed extract
- This isolates resveratrol at 250 mg, matching the trial doses, where grape seed extract supplies proanthocyanidins and only traces of resveratrol. The tradeoff: Grape seed is cheaper, has its own vascular evidence, and gives you a broader mix of polyphenols rather than one molecule.
- Compared with a mixed antioxidant formula
- You get a known amount of a specific compound rather than a long ingredient list at unstated or token doses. The tradeoff: One molecule covers one pathway. A formula spreads its bets, which sometimes matters more than dose.
Product details
- Active ingredient
- (from 500 mg ResveratrolRich®)
- Ingredient form
- vcaps
- Servings per container
- 60
- Suggested use
- 1 capsule daily or as directed by a health care practitioner.
- Country of manufacture
- Canada
- Independent testing
- ISURA
- Certifications
- Non-GMO, Made in Canada
- Storage
- Store in a cool, dry place
- Brand
- Natural Factors
How to take it
1 capsule daily or as directed by a health care practitioner.
- Store in a cool, dry place away from direct light.
- Keep out of reach of children.
- Consult a practitioner if you are pregnant, nursing or on medication.
Ingredients
Each vegetarian capsule contains
- Resveratrol [grape (Vitis vinifera) (fruit) and Japanese knotweed (Polygonum cuspidatum) (root)]
- 250 mg*
- (from 500 mg ResveratrolRich®)
Non-medicinal ingredients
Rice powder, vegetarian capsule (carbohydrate gum [cellulose], purified water), vegetable grade magnesium stearate (lubricant), silica.
Free from
Contains no artificial preservatives, colours or sweeteners; no dairy, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts or GMOs. Suitable for vegetarians/vegans.
Interactions and cautions
- Medications
- Some immune botanicals may interact with immunosuppressant medication. Review with your practitioner.
- Timing
- Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
- Pregnancy and breastfeeding
- Consult a healthcare practitioner before use if pregnant or breastfeeding.
- General
- Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.
This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.
Questions about Natural Factors - ResveratrolRich Super Strength Resveratrol Concentrate
- Is this the genuine, authentic product?
- Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
- How is the price below retail?
- We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
- Can I return it?
- You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.