Immune Booster
by Doctor's Best · capsule · 120 veggie caps
- On the market (NIH)
- UPC 7 53950 00521 1
- DSLD label 270244
- Serving 2 veggie capsules
- 60 servings
Immune Booster by Doctor's Best lists 3 ingredients, 3 with an amount per serving of 2 veggie capsules, such as 23 mg of zinc, 400 mg of echinacea aerial parts extract, powder and 300 mg of elderberry extract. Its current label entered the NIH Dietary Supplement Label Database on September 22, 2022.
What is in Immune Booster?
Each row as the label prints it, per serving of 2 veggie 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Zincas Zinc Citrate | 23 mg | 209% | Higher than 84% of 13,186 products listing zinc (median 11 mg). |
| Echinacea Aerial Parts Extract, Powderas Echinacea purpurea aerial parts extract | 400 mg | Higher than 72% of 234 products listing echinacea (median 200 mg). | |
| Elderberry extract | 300 mg | Higher than 66% of 920 products listing european elder (median 150 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 270244 (entered September 22, 2022), 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 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 Immune Booster's, rare ingredients counting for more.
- Immune SupportNATURELO Premium Supplements 3 shared, 87% alike
- DefenceEveryday Health 3 shared, 87% alike
- ShieldWellpath 3 shared, 61% alike
- Echinacea Vitamin C with Elderberry ExtractIntegrative Therapeutics · off the market 3 shared, 55% alike
- Immune Elderberry + ZincZemvelo 2 shared, 54% alike
- Zinc Lozenges Elderberry FlavorAdvanced Nutrition by Zahler 2 shared, 54% 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 Adult Use: Take 2 capsules daily with food, or as recommended by a nutritionally informed physician.
- Warnings
- Consult your physician before using elderberry if you have autoimmune diseases.
- Allergens and what it does not contain
- Non-GMO Gluten free Soy free
- Storage
- Store in a cool dry place.
Source: label statements in DSLD label 270244.
What else is on the label?
Other ingredients: Hypromellose, Microcrystalline Cellulose, Maltodextrin, Silicon Dioxide, Magnesium Stearate.
How many labels does Immune Booster have?
One label is on file, entered on September 22, 2022.
- Label 270244 (current) Entered September 22, 2022 · on the market · 120 veggie caps · UPC 7 53950 00521 1
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Doctor's Best, Inc. (distributor), California. All Doctor's Best products.