Bioactive Quercetin EMIQ
by Natural Factors · capsule · 60 vegetarian capsules
- Off the market since February 2018 (NIH)
- UPC 0 68958 01381 7
- DSLD label 37885
- Serving 1 capsule
Bioactive Quercetin EMIQ by Natural Factors lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 50 mg of vitamin C and 167 mg of emiq. Its current label entered the NIH Dietary Supplement Label Database on October 10, 2014.
What is in Bioactive Quercetin EMIQ?
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 | 50 mg | 80% | 77% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 100 mg. |
| EmiqEMIQ (Alt. Name: Enzymatically Modified Isoquercitrin) Note: providing | 167 mg | ||
| 50 mg of highly absorbable Quercetin | 50 mg | 56% of 1,548 products listing quercetin give more (median 100 mg). Per day at the most servings: 100 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 37885 (entered October 10, 2014), version 9.4.0. See the label on DSLD. 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?
The products whose ingredient lists overlap most with Bioactive Quercetin EMIQ's, rare ingredients counting for more.
- Isoquercitrin 200 mgSuperSmart 1 shared, 63% alike
- IsoquercitrinSuperSmart 1 shared, 63% alike
- Aller-CVital Nutrients 2 shared, 51% alike
- Allergy FormulaDr. Clark Store 2 shared, 42% alike
- Resveratrol Reserve Cellular Longevity ComplexNature's Answer · off the market 2 shared, 37% alike
- Quercetin Plus Vitamin CVitamin World 2 shared, 37% alike
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: 1 capsule 1–2 times per day or as directed by a health professional.
- Warnings
- Keep out of the reach of children.
- Sealed for your protection. Do not use if seal is broken.
- Allergens and what it does not contain
- Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs.
- Storage
- For freshness, store in a cool, dry place.
Source: label statements in DSLD label 37885.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Vegetarian Capsule, Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Purity&Potency Guaranteed.
How many labels does Bioactive Quercetin EMIQ have?
One label is on file, entered on October 10, 2014.
- Label 37885 (current) Entered October 10, 2014 · off the market February 2, 2018 · 60 vegetarian capsules · UPC 0 68958 01381 7
DSLD also links this label to: Bioactive Querctin EMIQ 50 mg (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 Natural Factors Canada (manufacturer). All Natural Factors products.