Immune Support

If you’re looking to support your body’s immune response – whether you’re feeling fine and want to stay that way, or you need to feel better quickly – trust Natural Factors’ products. Many supplements are formulated with our clinically proven ECHINAMIDE® echinacea, the result of many years of extensive research. We offer a range of single and combination formulas to support healthy immune function and respiratory health, relieve nasal congestion, and soothe sore throats.

 

 

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100% Vegan Vitamin D3 & K2, Whole Earth & Sea, Whole Earth & Sea®|v|image|35747

100% Vegan Vitamin D3 & K2

Supports healthy bones and immune function Learn More
Anti-Viral Potent Fresh Herbal Extract, ECHINAMIDE for Natural Factors |variant|hi-res|4700

Anti-Viral Potent Fresh Herbal Extract

Helps fight infections of the upper respiratory tract Learn More
Anti-Viral Potent Fresh Herbal Tincture, ECHINAMIDE, Natural Factors|v|image|4751

Anti-Viral Potent Fresh Herbal Tincture

Helps fight infections of the upper respiratory tract Learn More
Astaxanthin Plus 4 mg, Natural Factors|v|image|1013

Astaxanthin Plus 4 mg

Powerful cell protection Learn More
Balanced C Extra with Rutin, Rosehips, Hesperidin 500 mg/350 mg, Natural Factors|v|image|1321

Balanced C Extra with Rutin, Rosehips, Hesperidin 500 mg/350 mg

Provides immune support Learn More
Balanced C Extra with Rutin, Rosehips, Hesperidin 500 mg/500 mg, Natural Factors|v|image|1312

Balanced C Extra with Rutin, Rosehips, Hesperidin 500 mg/500 mg

Provides immune support Learn More
Bee Propolis 500 mg, Natural Factors|v|image|3161

Bee Propolis 500 mg Capsules

Supports the maintenance of good health Learn More
Bee Propolis Throat Spray, Natural Factors|v|image|3171

Bee Propolis Throat Spray Liquid

Supports the maintenance of good health Learn More
Bee Propolis Tincture 65% Extract, Natural Factors|v|image|3165

Bee Propolis Tincture 65% Extract

Supports the maintenance of good health Learn More
Bioactive Quercetin EMIQ 50 mg, Natural Factors|v|image|1381

Bioactive Quercetin EMIQ 50 mg

Highly bioavailable form of the antioxidant nutrient quercetin Learn More
BioCgel High Absorption Ascorbate C 500 mg 180 Softgels, image-hi-res

BioCgel High Absorption Ascorbate C 500 mg

High-absorption ascorbate C enhanced with citrus bioflavonoids Learn More
Black Elderberry Standardized Extract 100 mg, Natural Factors|v|image|4707

Black Elderberry Standardized Extract 100 mg

Helps relieve symptoms of cold and flu and provides antioxidants Learn More
C Extra + Quercetin Bioflavonoids 500 mg/250 mg, Natural Factors|v|image|1399

C Extra + Quercetin Bioflavonoids 500 mg/250 mg

Provides immune support Learn More
C Extra + Quercetin Bioflavonoids 500 mg/500 mg, Natural Factors|v|image|1334

C Extra + Quercetin Bioflavonoids 500 mg/500 mg

Provides immune support Learn More
Zinc Lozenges with Echinamide, Elderberry & Vitamin C, Cherry, ECHINAMIDE, Natural Factors|v|image|1689

Cherry Zinc Lozenges

Relieves cold and flu symptoms Learn More
Citrus Bioflavonoids Plus Hesperidin 650 mg, Natural Factors|v|image|1380

Citrus Bioflavonoids Plus Hesperidin 650 mg

Offers superior antioxidant protection Learn More
Cold & Cough Syrup, ECHINAMIDE, Natural Factors|v|image|4760

Cough & Cold Syrup

Relieves throat, sinus, and bronchial irritation Learn More
Echinacea & Goldenseal Tincture, ECHINAMIDE, Natural Factors|v|image|4730

Echinacea & Goldenseal Tincture

Provides premium immune-system support Learn More
Echinacea Fresh Herb Tincture Alcohol-Free 50 mL Tincture Natural Berry, image-hi-res

Echinacea Alcohol-Free Fresh Herb Tincture

Certified-organic effective immune-system support Learn More
Echinacea Fresh Herb Tincture, ECHINAMIDE, Natural Factors|v|image|4722

Echinacea Fresh Herb Tincture

Supports immune system function Learn More
Elderberry Gummies with Vitamins C & D plus Zinc, Natural Factors|v|image|4709

Elderberry Gummies with Vitamins C & D plus Zinc

Helps relieve cold and flu symptoms in kids Learn More
Fresh Herb Extract Clinical Strength, ECHINAMIDE, Natural Factors|v|image|4524

Fresh Herb Extract Clinical Strength

Supports immune system function Learn More
GarlicRich Garlic+Reishi Super Strength 300 mg, Natural Factors|v|image|2334

GarlicRich Garlic+Reishi Super Strength 300 mg

Supports immune and cardiovascular health Learn More
Zinc Lozenges with Echinamide, Elderberry & Vitamin C, Honey Blossom, ECHINAMIDE, Natural Factors|v|image|1688

Honey Blossom Zinc Lozenges

Relieves cold and flu symptoms Learn More
Horseradish Respiratory Relief, Whole Earth & Sea, Whole Earth & Sea®|v|image|35518

Horseradish Respiratory Relief, Whole Earth & Sea

Provides respiratory relief Learn More
L-Arginine 1000 mg, Natural Factors|v|image|2802

L-Arginine Amino Acid 1000 mg Tablets

Supports protein synthesis Learn More
L-Arginine 500 mg, Natural Factors|v|image|2821

L-Arginine Amino Acid 500 mg Vegetarian Capsules

Supports protein synthesis Learn More
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