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.

Buffered Vitamin C Powder Passionfruit Flavor label

Buffered Vitamin C Powder Passionfruit Flavor

Kirkman

Single Vitamin & MineralPowderOn Market
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Buffered Vitamin C Powder Unflavored label

Buffered Vitamin C Powder Unflavored

Kirkman

Single Vitamin & MineralPowderOn Market
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Buffered Vitamin C Rescue 1000 mg label

Buffered Vitamin C Rescue 1000 mg

Country Life

Botanicals with NutrientsTablet or PillOn Market
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Buffered Vitamin C with Bioflavonoids label

Buffered Vitamin C with Bioflavonoids

Swanson

Other CombinationsCapsuleOn Market
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Buffered Vitamin C with Rosehips label

Buffered Vitamin C with Rosehips

Energetix

Botanicals with NutrientsCapsuleOn Market
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Buffered Vitamin C with Rose Hips & Acerola 500 mg label

Buffered Vitamin C with Rose Hips & Acerola 500 mg

Solaray

VitaminsCapsuleOn Market
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C-1000 label

C-1000

Source Naturals Wellness

Other CombinationsTablet or PillOn Market
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C-1000 label

C-1000

Bio-Tech Pharmacal

VitaminsCapsuleOn Market
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C-1000 label

C-1000

Source Naturals Wellness

Other CombinationsTablet or PillOn Market
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C-1000 label

C-1000

Douglas Laboratories

VitaminsCapsuleOn Market
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C-1000 label

C-1000

Karuna

VitaminsCapsuleOn Market
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C-1000 label

C-1000

Douglas Laboratories

VitaminsCapsuleOn Market
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C-1000 label

C-1000

NOW

Botanicals with NutrientsTablet or PillOn Market
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C-1000 label

C-1000

Source Naturals

Botanicals with NutrientsTablet or PillOn Market
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C-1000 label

C-1000

NOW

Botanicals with NutrientsTablet or PillOn Market
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C-1000 label

C-1000

21st Century

VitaminsTablet or PillOn Market
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C-1000 1000 mg label

C-1000 1000 mg

Best Naturals

Other CombinationsTablet or PillOn Market
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C-1000 Caps label

C-1000 Caps

Twinlab

VitaminsCapsuleOn Market
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C-1000 Caps With 100 mg Bioflavonoids label

C-1000 Caps With 100 mg Bioflavonoids

NOW

Other CombinationsCapsuleOn Market
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C-1000 Caps With Bioflavonoids & Rutin label

C-1000 Caps With Bioflavonoids & Rutin

Protocol For Life Balance

Other CombinationsCapsuleOn Market
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C-1000 Complex label

C-1000 Complex

The Vitamin Shoppe

Other CombinationsCapsuleOn Market
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C-1000 Complex label

C-1000 Complex

The Vitamin Shoppe

Botanicals with NutrientsCapsuleOn Market
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C-1000 Complex label

C-1000 Complex

Biophix

Other CombinationsTablet or PillOn Market
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C-1000 Complex 1000 mg label

C-1000 Complex 1000 mg

The Vitamin Shoppe

Other CombinationsTablet or PillOn Market
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