Quercetin Plus Vitamin C
by Foster Regal · capsule · 60 capsules
- On the market (NIH)
- DSLD label 297011
- Serving 1 capsule
- 60 servings
Quercetin Plus Vitamin C by Foster Regal lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 700 mg of vitamin C and 250 mg of quercetin. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2023.
What is in Quercetin Plus Vitamin C?
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 L-Ascorbic Acid | 700 mg | 1,167% | Higher than 90% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,400 mg. |
| Quercetinas Rutin | 250 mg | Higher than 71% of 1,548 products listing quercetin (median 100 mg). Per day at the most servings: 500 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 297011 (entered September 25, 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 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.
- Formula 480DC same ingredients
- Formula 480 Quercetin Plus Vitamin CDC same ingredients
- Quercetin plus Vitamin CWonder Laboratories same ingredients
- C Extra + QuercetinNatural Factors same ingredients
- Quercetin- Ascorbate PowderDesigns for Health same ingredients
- SunActive IsoQTomorrow's 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
- Directions: As a dietary supplement, take 1 capsule in the morning and 1 capsule in the evening, preferably with meals.
- Warnings
- Tamper evident: Do not use this product if imprinted foil seal under cap is broken or missing.
- Keep out of reach of children.
- Caution: If you are pregnant or nursing, consult your physician before taking this product.
- Allergens and what it does not contain
- Quercetin Plus Vitamin C is a high-potency, synergistic combination of Quercetin, a non-citrus bio-active bioflavonoid derived from Rutin from Pagoda Tree buds and corn free pure crystalline vitamin C. Quercetin is more potent than common bioflavonoid complexes and contains no citrus allergens.
- Gluten free
- Storage
- Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees - 30 degrees C).
Source: label statements in DSLD label 297011.
What else is on the label?
Other ingredients: Gelatin, Magnesium Stearate, Cellulose.
How many labels does Quercetin Plus Vitamin C have?
One label is on file, entered on September 25, 2023.
- Label 297011 (current) Entered September 25, 2023 · on the market · 60 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Foster Regal Laboratories (distributor), White House, TN. All Foster Regal products.