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 500 mg
Nature Made
C 500 mg
The Vitamin Shoppe
C 500 mg
Nature Made
C 500 mg
21st Century
C 500 mg
21st Century
C 500 mg
21st Century
C 500 mg
Nature's Bounty
C 500 mg
Nature Made
C-500 mg
Swanson
C-500 mg
Vitamin World
C-500 mg
Puritan's Pride
C-500 mg
Puritan's Pride
C-500 mg
Rugby
C-500 mg
Puritan's Pride
C-500 mg & Bioflavonoids
Bluebonnet
C-500 mg & Bioflavonoids
Bluebonnet
C 500 mg Chewable
Thompson
C 500 mg & E 250 IU
Wonder Laboratories
C 500 mg & E 250 IU
Wonder Laboratories
C 500 mg & E 250 IU
Wonder Laboratories
C 500 mg & E 250 IU
Wonder Laboratories
C 500 mg & E 400 IU
Spring Valley
C 500 mg Four Mixed Fruit Flavors
Natural Factors
C 500 mg Four Mixed Fruit Flavors
Natural Factors