Immune Support
Supports immune defenses — e.g. vitamin C, zinc, elderberry, echinacea.
7,563 on-market products · include off-market
Immune support supplements are formulated to help maintain the body's natural defenses, especially during seasonal changes or periods of physical stress. This section of the database collects dietary supplement labels whose primary marketed use relates to immune health. Common active ingredients include Vitamin C, Zinc, Vitamin D, Elderberry, and Echinacea, often combined in single products or as part of broader wellness blends. Many labels also list supporting nutrients such as Selenium, Quercetin, and probiotics. Browsing here lets you compare ingredient amounts, percentage Daily Value (%DV), and serving sizes across thousands of products as recorded in the NIH Dietary Supplement Label Database (DSLD). This information is provided for reference and education only and is not medical advice; always read the full product label and consult a qualified healthcare provider before starting any supplement.
Common active ingredients
C-1000 & Zinc Immune
Super Nutrition SimplyOne
C-100 Chewable Orange-Flavored
DC
C-100 Chewable Orange-Flavored
DC
C-100 Chewable Orange-Flavored
DC
C-100 Chewable Orange-Flavored
DC
C-1500 Complex 1500 mg
The Vitamin Shoppe
C-1500 Complex 1500 mg
The Vitamin Shoppe
C-1500 with Rose Hips
Source Naturals
C(2)
High Performance Nutrition
C-2000 Complex 2000 mg
The Vitamin Shoppe
C-2000 Complex 2000 mg
The Vitamin Shoppe
C-250 Chewable Orange-Flavored
DC
C-250 Chewable Orange-Flavored
DC
C-250 Chewable Orange-Flavored
DC
C-250 Chewable Orange-Flavored
DC
C-250 Chewable Orange-Flavored
DC
C 250 mg
21st Century
C-250 mg
Nature's Bounty
C 250 mg Tangerine
Kirkland Signature
C-3000 Complex
MBi Nutraceuticals
C-500
Optimox
C-500 500 mg
Swanson
C 500 Ascorbic Acid
Windmill
C500 Ascorbic Acid
Windmill Natural Vitamins