Natural Factors Natural Factors - C Extra + Quercetin 500/500 mg 500 mg, 90tabs
Natural Factors C Extra + Quercetin - An immune-support formula that combines the antioxidant benefits of vitamin C with the bioflavonoid quercetin for enhanced support. Vitamin C is not stored by the body and needs to be consumed daily in order to maintain the levels recommended for overall health. Vitamin C is an essential nutrient that helps in collagen formation, which is needed for the normal development and maintenance of bones, cartilage, teeth, and gums. It also helps maintain the body’s ability to metabolize nutrients. Quercetin is a bioflavonoid found in many fruits, vegetables, and herbs. It has a wide range of benefits, including allergy relief, cardiovascular support, and enhancing the body’s absorption and use of vitamin C. Both vitamin C and quercetin also help protect tissues from free radical damage. C Extra + Quercetin contains 500 mg of Vitamin C blended with 500 mg of Quercetin for anyone looking for additional immune and antioxidant support.
Price
Regular Canadian retail price: $39.98 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 $75. 30-day returns. Ships from Victoria, BC.
See member pricing on Natural Factors Natural Factors - C Extra + Quercetin 500/500 mg
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: year-round defense, seasonal support, antioxidant support, recovery.
What the research supports
- Immune support (evidence: moderate, from systematic review, rct)
- Immune nutrients and botanicals help back up your body's natural defenses.
- Antioxidant protection (evidence: moderate, from scientific review)
- Antioxidants help protect your cells from everyday wear and tear.
Read the literature: Immune support on PubMed, Antioxidant protection on PubMed.
Product details
- Active ingredient
- Natural Factors - C Extra + Quercetin 500/500 mg
- Ingredient form
- tabs
- Strength
- 500 mg
- Servings per container
- 90
- Suggested use
- As directed on label
- 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
Take 1 to 2 capsules daily with food, or as directed by your healthcare 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.
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 - C Extra + Quercetin 500/500 mg
- 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?
- Forty-two years of supplier relationships let us price below what stores charge. You see it privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 2pm ET ship the same business day from our Canadian warehouse. Shipping is free over $75.
- Can I return it?
- Unopened products can be returned within 30 days. Find it cheaper anywhere in Canada and we will match the price.