PlainVitamins

Vitamin C With Flavonoids

by Thorne Research · capsule · 180 vegetarian capsules

  • Off the market since October 2017 (NIH)
  • UPC 6 93749 15202 6
  • DSLD label 15749
  • Serving 1 capsule

Vitamin C With Flavonoids by Thorne Research lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 500 mg of vitamin C and 75 mg of citrus bioflavonoids. Its current label entered the NIH Dietary Supplement Label Database on November 21, 2012.

What is in Vitamin C With Flavonoids?

Each row as the label prints it, per serving of 1 capsule. 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).

Vitamin C With Flavonoids: Supplement Facts rows against the market (DSLD label 15749, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg833%Vitamin C in Vitamin C With Flavonoids 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). Per day at the most servings: 1,500 mg.

Citrus Bioflavonoids75 mgFlavonoid in Vitamin C With Flavonoids against 2,343 products75 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.75 mg

Higher than 60% of 2,343 products listing flavonoid (median 50 mg). Per day at the most servings: 225 mg.

Source: NIH ODS Dietary Supplement Label Database, label 15749 (entered November 21, 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 3 servings 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
Suggested Use: Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Warnings
Tamper Evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 15749.

What else is on the label?

Other ingredients: Hypromellose (derived from Cellulose) Capsule, Silicon Dioxide.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): (pulled apart capsule)(R).

How many labels does Vitamin C With Flavonoids have?

One label is on file, entered on November 21, 2012.

  1. Label 15749 (current) Entered November 21, 2012 · off the market October 27, 2017 · 180 vegetarian capsules · UPC 6 93749 15202 6

DSLD also links this label to: Vitamin C With Flavonoids (package size difference, same product), Vitamin C with Flavonoids (package size difference, same product).

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

Who makes it?

The label names Thorne Research, Inc. (manufacturer), Dover, Idaho. All Thorne Research products.

Where next?