PlainVitamins

Quercetin Complex

by Puritan's Pride · capsule · 100 veggie capsules

  • On the market (NIH)
  • UPC 0 25077 00150 7
  • DSLD label 286015
  • Serving 2 capsules
  • 50 servings

Quercetin Complex by Puritan's Pride lists 8 ingredients, 8 with an amount per serving of 2 capsules, such as 500 mg of ester-C, 50 mg of ester-C, 500 mg of quercetin and 50 mg of bromelain, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on May 24, 2023.

What is in Quercetin Complex?

Each row as the label prints it, per serving of 2 capsules. 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).

Quercetin Complex: Supplement Facts rows against the market (DSLD label 286015, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories5 Calories
Total Carbohydrates1 g1%Carbohydrate in Quercetin Complex against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g).

Ester-Cas Vitamin C500 mg556%
Ester-Cas Calcium50 mg4%
Quercetin500 mgQuercetin in Quercetin Complex against 1,548 products500 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.500 mg

Higher than 84% of 1,548 products listing quercetin (median 100 mg).

Bromelain2,000 GDU/g50 mgBromelain in Quercetin Complex against 1,337 products50 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.50 mg

50% of 1,337 products listing bromelain give more (median 50 mg).

Citrus Bioflavonoid Complex50 mgFlavonoid in Quercetin Complex against 2,343 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

46% of 2,343 products listing flavonoid give more (median 50 mg).

Rose Hips50 mgDog Rose in Quercetin Complex against 397 products50 mg per serving; the middle half of products list 10 mg to 65 mg, the median 25 mg.50 mg

Higher than 63% of 397 products listing dog rose (median 25 mg).

Acerola Berry Extract50 mgAcerola in Quercetin Complex against 436 products50 mg per serving; the middle half of products list 14.5 mg to 300 mg, the median 60 mg.50 mg

54% of 436 products listing acerola give more (median 60 mg).

Rutin10 mgRutin in Quercetin Complex against 1,232 products10 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.10 mg

74% of 1,232 products listing rutin give more (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 286015 (entered May 24, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). 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 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?

The products whose ingredient lists overlap most with Quercetin Complex's, rare ingredients counting for more.

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: For adults, take two (2) capsules daily, preferably with a meal.
Warnings
Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of reach of children.
Do not use if seal under cap is broken or missing.
Allergens and what it does not contain
Non GMO
Storage
Store at room temperature.

Source: label statements in DSLD label 286015.

What else is on the label?

Other ingredients: Cellulose, Silica, Magnesium Stearate, Stearic Acid.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): QA Quality Assured.

How many labels does Quercetin Complex have?

One label is on file, entered on May 24, 2023.

  1. Label 286015 (current) Entered May 24, 2023 · on the market · 100 veggie capsules · UPC 0 25077 00150 7

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

Who makes it?

The label names Puritan's Pride, Inc. (manufacturer), Ronkonkoma, NY, U.S.A.. All Puritan's Pride products.

Where next?