Quercetin Phytosome
by NOW · capsule · 90 veg capsules
- On the market (NIH)
- UPC 7 33739 03087 0
- DSLD label 314013
- Serving 1 veg capsule
- 90 servings
Quercetin Phytosome by NOW lists 2 ingredients, 2 with an amount per serving of 1 veg capsule, such as 250 mg of quercetin phytosome. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2024.
What is in Quercetin Phytosome?
Each row as the label prints it, per serving of 1 veg 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 |
|---|---|---|---|
| Quercetin Phytosomeas Sophora japonica Flower Extract, Sunflower Lecithin | 250 mg | Higher than 71% of 1,548 products listing quercetin (median 100 mg). Per day at the most servings: 500 mg. | |
| Quercetin | 80 mg |
Source: NIH ODS Dietary Supplement Label Database, label 314013 (entered July 25, 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 1 to 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?
6 products list the very same ingredients; the nearest amounts come first.
- QuercetoneThorne Research · off the market same ingredients
- Quercetin 250 mgVQ Verified Quality same ingredients
- Quercetin PhytosomeThorne Research · off the market same ingredients
- Quercetin LipoMicel MatrixNatural Factors same ingredients
- Quercetin PhytosomeThorne same ingredients
- Quercetin 300 mgMoss Nutrition 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 Usage: Take 1 capsule 1 to 2 times daily, preferably with food.
- Warnings
- Caution: For adults only. Keep out of reach of children.
- Quercetin may interact with a variety of medications; consult physician before using this product if taking prescription drugs. Consult physician if pregnant/nursing or have a medical condition (especially kidney dysfunction).
- Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
- Allergens and what it does not contain
- Non-GMO
- Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
- Storage
- Store in a cool, dry place after opening.
Source: label statements in DSLD label 314013.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Hypromellose, Potato Maltodextrin, Silicon Dioxide, Stearic Acid.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quality GMP Assured.
How many labels does Quercetin Phytosome have?
One label is on file, entered on July 25, 2024.
- Label 314013 (current) Entered July 25, 2024 · on the market · 90 veg capsules · UPC 7 33739 03087 0
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.