Q-Defend

by Clean Nutraceuticals · capsule · 60 capsules

  • On the market (NIH)
  • UPC X0030YKLTT
  • DSLD label 310111
  • Serving 2 capsules
  • 30 servings

Q-Defend by Clean Nutraceuticals lists 20 ingredients, 5 with an amount per serving of 2 capsules, such as 1,000 mg of vitamin C, 125 mcg (5,000 IU) of vitamin D3, 100 mg of elderberry fruit extract and 100 mg of quercetin; 15 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on March 22, 2024.

What is in Q-Defend?

Each row as the label prints it, per serving of 2 capsules. 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).

Q-Defend: Supplement Facts rows against the market (DSLD label 310111, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid1,000 mg1,111%Vitamin C in Q-Defend against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg).

Vitamin D3as Cholecalciferol5000 IU125 mcg (5,000 IU)625%Vitamin D in Q-Defend against 14,175 products125 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg125 mcg

Higher than 92% of 14,175 products listing vitamin D (median 15 mcg). 1.3 times the adult UL a day.

Zinc Powerhouse3 Blend50 mg455%
Zinc Picolinatein the blend, no amount given

The label names the compound (Zinc Picolinate); its amount is likely the compound's weight, not the zinc it holds, so it is not placed among other products.

Zinc Gluconatein the blend, no amount given
Zinc Citratein the blend, no amount given
Elderberry Fruit Extractas Sambucus williamsii Fruit Extract10:1 Extract, equivalent to 1000 mg100 mgElderberry in Q-Defend against 159 products100 mg per serving; the middle half of products list 50 mg to 500 mg, the median 129 mg.100 mg

51% of 159 products listing elderberry give more (median 129 mg).

Quercetinas Sophora japonica Extract10:1 Extract, Equivalent to 1000 mg100 mgQuercetin in Q-Defend against 1,548 products100 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.100 mg

40% of 1,548 products listing quercetin give more (median 100 mg).

Q-Defend Immune Blend350 mg
Turmeric, Powderin the blend, no amount given
Ginger, Powderin the blend, no amount given
Echinacea Aerial Parts Extractin the blend, no amount given
Garlic, Powderin the blend, no amount given
Nettle, Powderas Urtica fissa, Powder, Urtica dioca, Powderin the blend, no amount given
Reishi Mushroom Fruiting Body Extractas Ganoderma lucidum Fruiting Body Extractin the blend, no amount given
Rose Hip, Powderas Rosa canina, Powderin the blend, no amount given
L-Lysine Hydrochloridein the blend, no amount given
Bromelain, Powderas Bromelia ananas, Powderin the blend, no amount given
Bifidobacterium animalis lactisin the blend, no amount given
Irish Sea Mossin the blend, no amount given
Artemisininas Sweet Wormwoodin the blend, no amount given
Black Pepper Fruit Extract5 mgBlack Pepper in Q-Defend against 2,363 products5 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.5 mg

33% of 2,363 products listing black pepper give more (median 5 mg).

Source: NIH ODS Dietary Supplement Label Database, label 310111 (entered March 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?

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:

  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.
  • At 1 serving a day, the most its directions give, the label lists 125 mcg (5,000 IU) of vitamin D, 1.3 times the adult Tolerable Upper Intake Level.

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 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 Q-Defend'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 else is on the label?

Other ingredients: Gelatin, Rice, Powder, Microcrystalline Cellulose, Magnesium Stearate.

How many labels does Q-Defend have?

One label is on file, entered on March 22, 2024.

  1. Label 310111 (current) Entered March 22, 2024 · on the market · 60 capsules · UPC X0030YKLTT

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

Who makes it?

The label names Clean Nutraceuticals (distributor), Sioux Falls, SD. All Clean Nutraceuticals products.

Where next?