PlainVitamins

Quercetin Zinc+

by DEVA · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 8 95634 00066 9
  • DSLD label 299495
  • Serving 1 tablet
  • 90 servings

Quercetin Zinc+ by DEVA lists 6 ingredients, 6 with an amount per serving of 1 tablet, such as 25 mg of zinc, 0.225 mg of copper, 500 mg of quercetin and 50 mg of elderberry fruit extract. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Quercetin Zinc+?

Each row as the label prints it, per serving of 1 tablet. 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 Zinc+: Supplement Facts rows against the market (DSLD label 299495, January 2026 release)
IngredientAmount% DVAmong products listing it
Zincas Zinc Amino Acid Chelate, Zinc Citrate25 mg227%Zinc in Quercetin Zinc+ against 13,186 products25 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg25 mg

Higher than 85% of 13,186 products listing zinc (median 11 mg).

Copperas Copper Amino Acid Chelate0.225 mg25%Copper in Quercetin Zinc+ against 6,468 products0.225 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.225 mg

87% of 6,468 products listing copper give more (median 1 mg).

Quercetinas Quercetin Dihydrate500 mgQuercetin in Quercetin Zinc+ against 1,548 products500 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.500 mg

Higher than 84% of 1,548 products listing quercetin (median 100 mg).

Elderberry Fruit Extractas Sambucus nigra Fruit Extract50 mgEuropean Elder in Quercetin Zinc+ against 920 products50 mg per serving; the middle half of products list 50 mg to 400 mg, the median 150 mg.50 mg

73% of 920 products listing european elder give more (median 150 mg).

Echinacea purpurea root extract25 mgEchinacea purpurea in Quercetin Zinc+ against 484 products25 mg per serving; the middle half of products list 50 mg to 400 mg, the median 200 mg.25 mg

81% of 484 products listing echinacea purpurea give more (median 200 mg).

Oregano Leaf Extract25 mgOregano in Quercetin Zinc+ against 302 products25 mg per serving; the middle half of products list 45 mg to 250 mg, the median 145 mg.25 mg

90% of 302 products listing oregano give more (median 145 mg).

Source: NIH ODS Dietary Supplement Label Database, label 299495 (entered August 23, 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?

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:

  • 90% of the 302 products that print an amount of oregano list more than its 25 mg of oregano (median 145 mg).

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?

The products whose ingredient lists overlap most with Quercetin Zinc+'s, rare ingredients counting for more.

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: for adults, take 1 tablet daily with food or as directed by a doctor.
Warnings
Tamper evident: Do not use if imprinted seal under cap is broken.
Keep out of reach of children.
Warning: always consult your health care provider before taking dietary supplements.
Allergens and what it does not contain
This product does not contain any animal products, derivatives or byproducts.
Food sensitivity: free of yeast, soy, wheat, gluten, dairy, egg, salt, shellfish, sugar, animal products or derivatives.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 299495.

What else is on the label?

Other ingredients: Cellulose, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, Silica, Hypromellose, Glycerin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Vegan.

How many labels does Quercetin Zinc+ have?

One label is on file, entered on August 23, 2023.

  1. Label 299495 (current) Entered August 23, 2023 · on the market · 90 tablets · UPC 8 95634 00066 9

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

Who makes it?

The label names DEVA Nutrition LLC (manufacturer). All DEVA products.

Where next?