Quercetin 500
by ProCaps Laboratories · capsule · 240 easy-to-swallow capsules
- On the market (NIH)
- UPC 712545
- DSLD label 320266
- Serving 1 capsule
- 240 servings
Quercetin 500 by ProCaps Laboratories lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 25 mg of vitamin C. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2024.
What is in Quercetin 500?
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Calcium Ascorbate, Calcium Palmitate | 25 mg | 28% | 88% of 18,583 products listing vitamin C give more (median 100 mg). |
| Quercetin Phospholipid Complexas Quercetin, Phospholipids, Quercetin Dihydrate80% phospholipids and 20% dihydrate | 25 mg | 28% | |
| Quercetintotal quercetin | 235 mg | Higher than 71% of 1,548 products listing quercetin (median 100 mg). | |
| Phospholipidstotal phospholipids | 135 mg |
Source: NIH ODS Dietary Supplement Label Database, label 320266 (entered November 22, 2024), 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?
6 products list the very same ingredients; the nearest amounts come first.
- Quercetin with Vitamin C 500 mgEveryday Health same ingredients
- Bioactive Querctin EMIQ 50 mgNatural Factors same ingredients
- SunActive IsoQTomorrow's Nutrition same ingredients
- Quercetin PlusOL Olympian Labs same ingredients
- Resveratrol Reserve Cellular Longevity ComplexNature's Answer · off the market same ingredients
- C Extra + QuercetinNatural Factors same ingredients
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 Consume one capsule daily. You can increase your intake as required or as guided by your physician.
- Allergens and what it does not contain
- Contains no additives or common allergens Contains no milk, soy, yeast, corn, wheat, gluten, sodium, salt, sugar, fat, cholesterol, color, preservative, common allergens, genetically modified (GMO) ingredients or manufacturing additives.
Source: label statements in DSLD label 320266.
What else is on the label?
Other ingredients: Gelatin.
How many labels does Quercetin 500 have?
2 labels are on file under this name since October 24, 2022: other sizes, label designs and reformulations. The current one leads this page.
- Label 320266 (current) Entered November 22, 2024 · on the market · 240 easy-to-swallow capsules · UPC 712545
- Label 275285 Entered October 24, 2022 · off the market December 13, 2023 · 240 easy-to-swallow capsules · UPC 712545
DSLD also links this label to: Quercetin 500 (image 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 ProCaps Labs (manufacturer), Henderson, NV. All ProCaps Laboratories products.