500-C Methoxyflavone

by Metagenics · tablet or pill · 270 tablets

  • On the market (NIH)
  • UPC 7 55571 01000 1
  • DSLD label 215641
  • Serving 1 tablet
  • 270 servings

500-C Methoxyflavone by Metagenics lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 500 mg of vitamin C and 500 mg of citrus bioflavonoid complex. Its current label entered the NIH Dietary Supplement Label Database on March 24, 2020.

What is in 500-C Methoxyflavone?

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).

500-C Methoxyflavone: Supplement Facts rows against the market (DSLD label 215641, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg556%Vitamin C in 500-C Methoxyflavone 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 Bioflavonoid Complexas BioflavonoidsCitrus Bioflavonoid Complex (Form: standardized to (225 mg) 45% Bioflavonoids (Form: Hesperidin, and other naturallly occurring Phenolic Compounds))500 mgFlavonoid in 500-C Methoxyflavone 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).

Source: NIH ODS Dietary Supplement Label Database, label 215641 (entered March 24, 2020), 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 bioflavonoid complex (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?

6 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
Directions: Take one tablet daily or as directed by your healthcare practitioner.
Warnings
Caution: Keep out of the reach of children.
Tamper evident: Do not use if safety seal is missing or broken.
Allergens and what it does not contain
This product is non-GMO, gluten-free, and vegetarian.
Storage
Storage: Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 215641.

What else is on the label?

Other ingredients: Cellulose, Silica, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Coating.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non-GMO Project Verified nongmoproject.org; Certified Gluten-Free. Listed with: Non-GMO Project Verified (a seal is the label's claim; the certifier's own list confirms it).

How many labels does 500-C Methoxyflavone have?

4 labels are on file under this name since October 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 215641 (current) Entered March 24, 2020 · on the market · 270 tablets · UPC 7 55571 01000 1
  2. Label 209659 Entered December 22, 2019 · off the market December 20, 2019 · 270 tablets
  3. Label 26241 Entered October 25, 2013 · off the market September 10, 2019 · 270 tablets · UPC 7 55571 01000 1
  4. Label 26237 Entered October 25, 2013 · off the market September 10, 2019 · 90 tablets · UPC 7 55571 01001 8

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

Who makes it?

The label names Metagenics (manufacturer), Gig Harbor, WA. All Metagenics products.

Where next?