PlainVitamins

ImmuBlast Citrus

by 21st Century · tablet or pill · 32 chewable tablets

  • On the market (NIH)
  • UPC 7 40985 27696 9
  • DSLD label 326329
  • Serving 4 tablets
  • 8 servings

ImmuBlast Citrus by 21st Century lists 17 ingredients, 7 with an amount per serving of 4 tablets, such as 600 mcg of vitamin A, 1,000 mg of vitamin C, 13.5 mg of vitamin E and 40 mg of magnesium; 10 sit inside a blend without their own amounts, beside 3 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on January 23, 2025.

What is in ImmuBlast Citrus?

Each row as the label prints it, per serving of 4 tablets. 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).

ImmuBlast Citrus: Supplement Facts rows against the market (DSLD label 326329, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories20 Calories
Total Carbohydrates5 g2%Carbohydrate in ImmuBlast Citrus against 21,979 products5 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.5 g

Higher than 65% of 21,979 products listing carbohydrate (median 3 g). Per day at the most servings: 15 g.

Total Sugars5 gSugar in ImmuBlast Citrus against 11,807 products5 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.5 g

Higher than 78% of 11,807 products listing sugar (median 2 g). Per day at the most servings: 15 g.

Added Sugars5 g10%
Vitamin Aas Retinyl Palmitate600 mcg67%
Vitamin Cas Ascorbic Acid1,000 mg1,111%Vitamin C in ImmuBlast Citrus 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). Per day at the most servings: 3,000 mg. 1.5 times the adult UL a day.

Vitamin Eas DL-Alpha-Tocopheryl Acetate13.5 mg90%
Magnesiumas Magnesium Oxide40 mg10%Magnesium in ImmuBlast Citrus against 14,003 products40 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg40 mg

70% of 14,003 products listing magnesium give more (median 86 mg). Per day at the most servings: 120 mg.

Zincas Zinc Oxide8 mg73%Zinc in ImmuBlast Citrus against 13,186 products8 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg8 mg

60% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 24 mg.

Seleniumas Sodium Selenite15 mcg27%Selenium in ImmuBlast Citrus against 7,658 products15 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg15 mcg

90% of 7,658 products listing selenium give more (median 55 mcg). Per day at the most servings: 45 mcg.

Manganeseas Manganese Sulfate3 mg130%Manganese in ImmuBlast Citrus against 7,016 products3 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg3 mg

Higher than 71% of 7,016 products listing manganese (median 2 mg). Per day at the most servings: 9 mg.

Proprietary Herbal Extract Blend350 mg
Maltodextrinin the blend, no amount given
Lonicera japonica flower extractin the blend, no amount given
Forsythia suspensa Fruit Extractin the blend, no amount given
Schizonepeta tenuifolia Aerial Extractin the blend, no amount given
Ginger Root Extractin the blend, no amount given
Vitex trifolia Fruit Extractin the blend, no amount given
Isatis tinctoria root extractin the blend, no amount given
Echinacea purpurea Aerial Extractin the blend, no amount given
Proprietary Amino Acid Blend350 mg
L-Lysine Hydrochloridein the blend, no amount given
L-Glutaminein the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 326329 (entered January 23, 2025), 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:

  • At 3 servings a day, the most its directions give, the label lists 3,000 mg of vitamin C, 1.5 times the adult Tolerable Upper Intake Level.
  • 90% of the 7,658 products that print an amount of selenium list more than its 15 mcg of selenium (median 55 mcg).

The NIH database records 1 to 3 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 ImmuBlast Citrus'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
21st Century ImmuBlast chewable tablets can be taken conveniently without water. Just chew four tablets and continue with your busy day.
Directions: As a dietary supplement for adults and children 12 years and older, chew four (4) tablets per serving. Repeat as necessary up to 12 tablets per day. Do not exceed recommended dosage. Individual results may vary.
Warnings
Do not exceed recommended dosage.
Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Stop use and contact a physician if adverse reactions occur. Do not use if product appears to be tampered with or seal is broken.
Keep out of reach of children.
Allergens and what it does not contain
Gluten free
No added yeast. Gluten free.
Storage
Store at room temperature.

Source: label statements in DSLD label 326329.

What else is on the label?

Other ingredients: Dextrose, Sorbitol, FD&C Yellow #6, Magnesium Stearate, Orange Flavor, Natural, Silicon Dioxide, Sucralose.

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

How many labels does ImmuBlast Citrus have?

4 labels are on file under this name since March 25, 2015: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 326329 (current) Entered January 23, 2025 · on the market · 32 chewable tablets · UPC 7 40985 27696 9
  2. Label 208370 Entered November 21, 2019 · on the market · 50 chewable tablets · UPC 7 40985 27934 2
  3. Label 208258 Entered October 23, 2019 · off the market July 18, 2023 · 32 chewable tablets · UPC 7 40985 27696 9
  4. Label 43798 Entered March 25, 2015 · off the market March 14, 2019 · 32 chewable tablets · UPC 7 40985 27696 9

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

Who makes it?

The label names 21st Century HealthCare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.

Where next?