Immune Support Supplements

The right nutrition can help support and maintain immune health. Encouraging a healthy immune response will keep us going strong for a lifetime.

Foundation Supplement Guide

Answer a few questions to choose the right supplements

The right nutrition can help support and maintain immune health. Encouraging a healthy immune response will keep us going strong for a lifetime.

Foundation Supplement Guide

Answer a few questions to choose the right supplements

Browse our different products for Immune Support

Immune Support (General)

Need general, basic immune support? Don’t know where to start? Check out our scientifically formulated products in this category.

Best In Class

Comprehensive immune system support

4.5 (13)
60 tablets
Super Sale
  • $28.50
  • $25.65
  • Save $2.85

Our best-in-class immune system support formula goes way beyond vitamin C with standardized cistanche, reishi mushroom and pu-erh tea extracts to support immune cell health, response and ratio.

Best Seller

Support for the body's natural immune defenses

4.9 (14)
50 mg, 90 capsules
Super Sale
  • $6.75
  • $6.08
  • Save $0.67

Our zinc supplements are designed to provide optimum absorption into the body, so you get maximum immune health support.

Vitamin C plus ultra-absorbable quercetin for immune support

4.8 (87)
Super Sale
  • $22.50
  • $20.25
  • Save $2.25

Vitamin C benefits are enhanced with our Bio-Quercetin Phytosome, which is up to 50 times more absorbable than standard quercetin.

Essential amino acid for healthy nitrogen balance & more.

4.6 (18)
620 mg, 100 capsules
Super Sale
  • $6.75
  • $6.08
  • Save $0.67

Lysine, which is incorporated into many proteins, may promote proper nitrogen balance, a healthy stress response and inhibit glycation, which can play a role in a variety of age-related factors.

Supports a strong, healthy immune response.

5 (8)
60 capsules
Super Sale
  • $45.00
  • $40.50
  • Save $4.50

Lactoferrin is a milk compound shown to support a strong, healthy immune system response, as well as eye health.

Buffered C Powder. Vitamin C For Sensitive Stomachs. Net Wt. 454 grams

Vitamin C for sensitive stomachs

4.8 (44)
454 grams
Super Sale
  • $21.00
  • $18.90
  • Save $2.10

Our Buffered Vitamin C Powder contains four buffering minerals that, when mixed with water, is non-irritating to the stomach and intestinal lining.

Full-spectrum extract, broad-spectrum immune support

4.5 (19)
60 capsules
Super Sale
  • $22.50
  • $20.25
  • Save $2.25

Reishi mushroom compounds are powerful immune modulators. And our ultra-bioavailable Reishi formula uses an extract standardized for three active compounds.

Fast delivery & absorption.

3.7 (3)
60 tablets
Super Sale
  • $19.50
  • $17.55
  • Save $1.95

Our Fast C® and Bio-Quercetin Phytosome formula maximizes the absorption and health benefits of vitamin C. It also contains calcium and magnesium to neutralize acid, protecting sensitive stomachs.

Clinically studied nutrients support immune system health

4.6 (18)
30 capsules
Super Sale
  • $22.13
  • $19.91
  • Save $2.22

Immune Protect with PARACTIN® supports immune system health with ingredients that have been clinically studied to promote healthy immune function.

Fat-soluble vitamin C supplement

5 (12)
500 mg, 100 capsules
Super Sale
  • $16.88
  • $15.19
  • Save $1.69

Ascorbyl Palmitate is a fat-soluble vitamin C that delivers antioxidant protection to areas of the body where conventional vitamin C (ascorbic acid) can’t reach.

Provides cardiovascular & immune support

4.4 (12)
200 capsules
Super Sale
  • $18.71
  • $16.84
  • Save $1.87

Our Optimized Garlic formulation is based on published scientific studies that showcase garlic’s immune support, cellular detoxification and enhancing of the body’s response to oxidative stress.

Helps maintain balanced immune cell activity

3.9 (8)
60 capsules
Super Sale
  • $27.00
  • $24.30
  • Save $2.70

Peony Immune contains a white peony root extract shown to help maintain balanced immune cell activity, promote a healthy immune response and inhibit inflammatory factors to support immune health.

Powerful support against immune senescence

3.8 (4)
30 capsules
Super Sale
  • $15.00
  • $13.50
  • Save $1.50

Our Standardized Cistanche utilizes powerful plant extracts to promote longevity and provide support against immune senescence.

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Immune Seasonal Support

Sometimes all we need is a little seasonal immune support. If this is the case, give these specifically designed formulas a try.

Best In Class

Seasonal pre & probiotics

0 (0)
4.37 oz
Super Sale
  • $29.25
  • $26.33
  • Save $2.92

This formula combines a clinically studied blend of five probiotic strains with a prebiotic called galactooligosaccharide (GOS) to promote a healthy immune response during the winter months.

Best Seller

Highly absorbable quercetin for immune & cardiovascular support

5 (24)
30 capsules
Super Sale
  • $9.00
  • $8.10
  • Save $0.90

Our Bio-Quercetin supplement uses a quercetin encased in a plant-derived phytosome, which makes absorption easier. Our quercetin is up to 50 times more bioavailable than a dose of standard quercetin.

Supports cellular health & immune function

4.6 (22)
250 mg, 60 capsules
Super Sale
  • $16.50
  • $14.85
  • Save $1.65

Optimized Quercetin delivers 250 mg standardized quercetin in a bioavailable superfood supplement blend with vitamin C and camu-camu berry extract to support a healthy immune response and more.

Convenient immune health support lozenge

4.9 (8)
60 lozenges
Super Sale
  • $6.75
  • $6.08
  • Save $0.67

Our citrus-orange-flavored Zinc Lozenges offer powerful support for immune health, promote healthy protein synthesis & encourage healthy insulin function.

Seasonal immune support.

5 (9)
30 tablets
Super Sale
  • $33.75
  • $30.38
  • Save $3.37

Our NK Cell Activator™ supports the activity of natural killer (NK) cells to promote a healthy immune response and provide targeted seasonal immune protection.

Defend yourself against seasonal immune challenges

3.7 (32)
30 lozenges
Super Sale
  • $9.00
  • $8.10
  • Save $0.90

Our Enhanced Zinc Lozenges are peppermint-flavored and formulated with positively charged zinc ions for immune support throughout the year.

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Nasal Support

When it comes to nasal immune support, we’ve got you covered. Try one of our products formulated with this area in mind.

Best In Class | Best Seller

Promotes eye & nose comfort and a healthy immune response

3.9 (9)
30 capsules
Super Sale
  • $27.00
  • $24.30
  • Save $2.70

FLORASSIST® Nasal formula combines EpiCor® brewer’s yeast extract and heat-treated L-92® L. acidophilus to promote a comfortable immune response to the environment.

Powerful immune health support

5 (3)
60 capsules
Super Sale
  • $12.75
  • $11.48
  • Save $1.27

Our immune health supplement helps your system maintain effective and responsive immunity using Tinofend®, a standardized extract of active Tinospora compounds.

Need help selecting what's best for you?

Foundation Supplement Guide

Answer a few questions to choose the right supplements

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