C Extra 500 mg Plus 500 mg Bioflavonoids

by Natural Factors · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 0 68958 01311 4
  • DSLD label 8014
  • Serving 1 tablet

C Extra 500 mg Plus 500 mg Bioflavonoids by Natural Factors lists 5 ingredients, 5 with an amount per serving of 1 tablet, such as 500 mg of vitamin C, 500 mg of citrus bioflavonoids, 50 mg of rutin and 50 mg of rosehips. Its current label entered the NIH Dietary Supplement Label Database on April 26, 2012.

What is in C Extra 500 mg Plus 500 mg Bioflavonoids?

Each row as the label prints it, per serving of 1 tablet. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

C Extra 500 mg Plus 500 mg Bioflavonoids: Supplement Facts rows against the market (DSLD label 8014, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg830%Vitamin C in C Extra 500 mg Plus 500 mg Bioflavonoids against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg).

Citrus Bioflavonoidsas grapefruit peel, lemon peel, OrangeCitrus Bioflavonoids (Form: from lemon peel, orange peel, & grapefruit peel) Note: powdered500 mgFlavonoid in C Extra 500 mg Plus 500 mg Bioflavonoids against 2,343 products500 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.500 mg

Higher than 94% of 2,343 products listing flavonoid (median 50 mg).

RutinRutin Note: powdered extract50 mgRutin in C Extra 500 mg Plus 500 mg Bioflavonoids against 1,232 products50 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.50 mg

Higher than 69% of 1,232 products listing rutin (median 25 mg).

RosehipsRosehips Note: powdered50 mgRose (unspecified) in C Extra 500 mg Plus 500 mg Bioflavonoids against 195 products50 mg per serving; the middle half of products list 14.5 mg to 100 mg, the median 30 mg.50 mg

Higher than 53% of 195 products listing rose (unspecified) (median 30 mg).

Hesperidin Bioflavonoids25 mgHesperidin in C Extra 500 mg Plus 500 mg Bioflavonoids against 552 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 20 mg.25 mg

Higher than 53% of 552 products listing hesperidin (median 20 mg).

Source: NIH ODS Dietary Supplement Label Database, label 8014 (entered April 26, 2012), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 500 mg of citrus bioflavonoids (filed by NIH under flavonoid) is higher than 94% of the 2,343 flavonoid products that print an amount; 65 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

2 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Usage: 1 tablet daily or as directed by a health professional.
Warnings
Sealed for your protection. Do not use if seal on cap is broken.
Allergens and what it does not contain
Contains no artificial preservatives or color, no dairy, sweeteners, wheat or yeast.
Storage
For freshness store in a cool, dry place.

Source: label statements in DSLD label 8014.

What else is on the label?

Other ingredients: Di-Calcium Phosphate, Lactose, Croscarmellose Sodium, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): (recycle) Recyclable container and label; Purity & Potency Guaranteed.

How many labels does C Extra 500 mg Plus 500 mg Bioflavonoids have?

One label is on file, entered on April 26, 2012.

  1. Label 8014 (current) Entered April 26, 2012 · on the market · 90 tablets · UPC 0 68958 01311 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Natural Factors Canada (manufacturer). All Natural Factors products.

Where next?