Scores 35/35 for dosage transparency, 24/25 for a clean formula, 21/25 for label completeness. 9 ingredients disclosed with amounts.
capsule · 30 servings · $2.21/servingBuy on iHerb$66.18
Ranking
10 Best Immune Support Supplements
Immune formulas are one of the most crowded categories on iHerb, and one where seasonal marketing outweighs labels. Elderberry products in particular vary widely: some state the extract amount and standardization, many do not.
We ranked elderberry, echinacea, colostrum, lactoferrin and multi-ingredient immune formulas sold on iHerb by label quality. Single vitamin C, vitamin D and zinc products have their own rankings.
Our top picks
Scores 35/35 for dosage transparency, 23/25 for a clean formula, 22/25 for label completeness. 9 ingredients disclosed with amounts.
capsule · 30 servings · $0.63/servingBuy on iHerb$18.87
Scores 35/35 for dosage transparency, 25/25 for a clean formula, 23/25 for label completeness. 2 ingredients disclosed with amounts.
capsule · 60 servings · $0.30/servingBuy on iHerb$17.99
Top 10 ranked
#ProductScoreFormServingsPrice
How we ranked them
Every product is scored 0–100 from its label data in the NIH Dietary Supplement Label Database: dosage transparency (35 points - are amounts stated per ingredient, or hidden in a proprietary blend?), label completeness (25), formulation cleanliness (25 - fillers, dyes, titanium dioxide and other non-active ingredients) and ingredient profile (15). The Top 10 admits only products scoring 60 or higher; among those, products with a verified retail listing are shown first so the list is one you can act on. No brand can pay to be included or moved up.
Forms and dosage
- Elderberry extract or syrup
- Labels should state the extract amount and ratio or standardization, not only "elderberry".
- Echinacea
- Different species and plant parts are used; a good label names them.
- Colostrum and lactoferrin
- Bovine-derived; amounts in milligrams should be stated.
- Immune blends
- Vitamin C, zinc, vitamin D and herbs together, often at modest amounts each.
How much to take
There are no official doses for elderberry or echinacea; compare extract amounts between products. For the vitamins and minerals in immune blends, the NIH upper limits apply: vitamin C 2,000 mg, zinc 40 mg, vitamin D 4,000 IU per day for adults.
Who it's for
Adults who want a clearly labeled immune product rather than an undisclosed seasonal blend.
What to watch out for
Proprietary immune blends, sugar-heavy syrups and gummies, zinc above 40 mg per day from all sources, and echinacea if you are allergic to ragweed.
All Immune Support products (4473)
1
OL Olympian LabsHerp-Eeze
882Bio NutritionOlive Leaf & Oregano Immune Wellness
883ParadiseElderberry + with Zinc
884SambucolBlack Elderberry for Kids
875American BioSciencesImmPowerD3
876Nature's WayAlive! Immune with Elderberry
877KyolicKyolic Formula 103
878KyolicKyolic Vitamin C, Astragalus, Mushrooms, Oregano Formula 103
879KyolicKyolic Vitamin C, Astragalus, Mushrooms
8710Nature's WayAlive! Immune Gummies
8711KyolicKyolic Immune Formula 103
8712CodeageLungs
8613NutraChampsElderberry Vitamin C + Zinc
8614OL Olympian LabsHerp-Eeze Next Generation
8615Pure EncapsulationsPureDefense w/NAC
8516Nature's WaySambucus Immune Syrup
8517NutricostElderberry Gummies 90 mg
8518ChildLife EssentialsElderberry Super-Immune SoftMelts Natural Berry Flavor
8519youtheoryImmune+ Daily wellness
8520Quantum HealthTheraZinc Immune Support Throat Spray Peppermint Flavor
85Frequently Asked Questions
Why are vitamin C and zinc not in this ranking?
They have their own category rankings. This one covers products sold for immune support as a whole, such as elderberry, echinacea and immune blends.
How do I compare elderberry products?
By the extract amount and its ratio or standardization per serving. "Elderberry 500 mg" without either tells you little.
How are immune support supplements ranked?
Products are ranked by SupplementScore, which evaluates label quality across four categories: dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts). The score is based on data from the NIH Dietary Supplement Label Database, not marketing claims.
Does a higher score mean the supplement is more effective?
No. The SupplementScore measures label quality, how transparent, clean, and well-documented a product is. It does not measure clinical efficacy, bioavailability, or third-party testing. A higher score means better label practices, not guaranteed results.
How many immune support supplements were analyzed?
We analyzed 4,473 immune support products from the NIH DSLD database, which contains label data for over 116,000 dietary supplements sold in the United States.
This article is for information only and is not medical advice. Talk to a clinician before starting a supplement, especially if you are pregnant, take medication or have a health condition.