PlainVitamins

Quercetin Complex

by BioCare · capsule · 90 vegetable capsules

  • On the market (NIH)
  • UPC 5 033290 260903
  • DSLD label 336069
  • Serving 1 capsule; amounts per 3 capsules
  • 90 servings

Quercetin Complex by BioCare lists 4 ingredients, 4 with an amount per serving of 3 capsules, such as 90 mg of vitamin C, 900 mg of quercetin, 150 mg of nettle leaf extract and 54 mg of bromelain. Its current label entered the NIH Dietary Supplement Label Database on July 24, 2025.

What is in Quercetin Complex?

Each row as the label prints it, per serving of 3 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 336069, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin C90 mg113%Vitamin C in Quercetin Complex against 18,583 products90 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg90 mg

57% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 270 mg.

Quercetin900 mgQuercetin in Quercetin Complex against 1,548 products900 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.900 mg

Higher than 96% of 1,548 products listing quercetin (median 100 mg). Per day at the most servings: 2,700 mg.

Nettle Leaf Extract4:1, equivalent 600mg150 mgStinging Nettle in Quercetin Complex against 710 products150 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.150 mg

Higher than 54% of 710 products listing stinging nettle (median 120 mg). Per day at the most servings: 450 mg.

Bromelain540 GDU54 mgBromelain in Quercetin Complex against 1,337 products54 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.54 mg

Higher than 50% of 1,337 products listing bromelain (median 50 mg). Per day at the most servings: 162 mg.

Source: NIH ODS Dietary Supplement Label Database, label 336069 (entered July 24, 2025), 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?

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 900 mg of quercetin is higher than 96% of the 1,548 quercetin products that print an amount; 57 list more.

The NIH database records 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?

1 product lists 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: 1 capsule taken 3 times daily with food, or as professionally directed.
Warnings
This product should not be used as a substitute for a varied diet and healthy lifestyle. Do not exceed the stated recommended daily intake. Do not purchase if the seal is broken. If you are under medical supervision, please consult a doctor before use.
Keep out of reach of children.
Caution is advised with anti-coagulant medication. Not suitable for use during planned pregnancy, pregnancy, or breastfeeding.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 336069.

What else is on the label?

Other ingredients: Quercetin, Hydroxypropyl Methylcellulose, Bromelain, Microcrystalline Cellulose, Nettle Leaf Extract, Vitamin C, Ascorbyl Palmitate, Rice.

How many labels does Quercetin Complex have?

2 labels are on file under this name since January 24, 2024: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 336069 (current) Entered July 24, 2025 · on the market · 90 vegetable capsules · UPC 5 033290 260903
  2. Label 302268 Entered January 24, 2024 · off the market March 27, 2025 · 90 vegetable capsules · UPC 5 033290 260903

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

Who makes it?

The label names UK - BioCare Ltd (manufacturer), Redditch , UK. All BioCare products.

Where next?