PlainVitamins

Querciplex

by Douglas Laboratories · capsule · 60 vegetarian capsules

  • On the market (NIH)
  • UPC 3 10539 97980 8
  • DSLD label 261779
  • Serving 1 vegetarian capsule
  • 60 servings

Querciplex by Douglas Laboratories lists 2 ingredients, 2 with an amount per serving of 1 vegetarian capsule, such as 100 mg of vitamin C and 100 mg of bromelain. Its current label entered the NIH Dietary Supplement Label Database on April 11, 2022.

What is in Querciplex?

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

Querciplex: Supplement Facts rows against the market (DSLD label 261779, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid100 mg111%Vitamin C in Querciplex against 18,583 products100 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg100 mg

50% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 200 mg.

Quercefitas Quercetin Phytosome250 mg
Bromelainas Pineapple100 mgBromelain in Querciplex against 1,337 products100 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.100 mg

Higher than 55% of 1,337 products listing bromelain (median 50 mg). Per day at the most servings: 200 mg.

Source: NIH ODS Dietary Supplement Label Database, label 261779 (entered April 11, 2022), 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 2 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?

The products whose ingredient lists overlap most with Querciplex'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
Suggested usage: As a dietary supplement, adults take 1 capsule twice daily or as directed by a health professional.
Warnings
Warning: Not to be taken by pregnant or lactating women. If you have any condition or are taking any medication, consult your health professional before use.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 261779.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Ascorbyl Palmitate.

How many labels does Querciplex have?

7 labels are on file under this name since January 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 261779 (current) Entered April 11, 2022 · on the market · 60 vegetarian capsules · UPC 3 10539 97980 8
  2. Label 232226 Entered August 23, 2020 · on the market · 100 capsules · UPC 3 10539 00308 4
  3. Label 30659 Entered February 26, 2014 · off the market June 26, 2020 · 100 capsules · UPC 3 10539 00308 4
  4. Label 30658 Entered February 26, 2014 · off the market January 31, 2024 · 50 capsules · UPC 3 10539 01297 0
  5. Label 10064 Entered June 25, 2012 · off the market July 31, 2013 · 100 capsules · UPC 3 10539 00308 4
  6. Label 10063 Entered June 25, 2012 · off the market July 31, 2013 · 50 capsules · UPC 3 10539 01297 0
  7. Label 5186 Entered January 25, 2012 · off the market January 20, 2012 · 100 capsules · UPC 3 10539 00308 4

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

Who makes it?

The label names Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.

Where next?