Collection: 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.

Clear all

Sort by:

170 products

Filter and sort

170 products

Sort by:

Filter

All Products

All Supplement and Vitamin Products
CLEAR FILTER (799)

Shop by Trending Categories

Whole Earth & Sea

Shop by Health Benefit

Health Essentials
CLEAR FILTER (48)
Stress and Sleep Solutions
CLEAR FILTER (90)
Detox and Cleanse
CLEAR FILTER (24)
Weight Management
CLEAR FILTER (24)
Bladder and Urinary Support
CLEAR FILTER (15)
Brain and Cognitive Health
CLEAR FILTER (75)
Eye Health
CLEAR FILTER (39)
Sports Nutrition
CLEAR FILTER (40)
Men's Health
CLEAR FILTER (21)
Women's Health
CLEAR FILTER (30)

Shop by Specialty Line

Whole Earth & Sea
CLEAR FILTER (52)
CurcuminRich
CLEAR FILTER (12)
RxOmega-3 Omega-3 Supplements
CLEAR FILTER (10)
WellBetX Blood Sugar Balance Supplements
CLEAR FILTER (8)
Premium Probiotic
CLEAR FILTER (8)
HerbalFactors
CLEAR FILTER (46)
Rich Super Strength Concentrate Fruit Supplements
CLEAR FILTER (26)
PGX Weight Loss Supplements
CLEAR FILTER (6)
BioCoenzymated Vitamin B
CLEAR FILTER (16)
Whey Factors Protein Powder
CLEAR FILTER (6)
OmegaFactors Omega-3 Supplements
CLEAR FILTER (10)
MultiFactors Multivitamins
CLEAR FILTER (8)
Big Friends Kids Vitamins
CLEAR FILTER (24)
SeaRich Omega-3 Supplements
CLEAR FILTER (8)
Detoxitech
CLEAR FILTER (4)
RevitalX & Detoxitech
CLEAR FILTER (4)
RealEasy Meal Replacement Shakes
CLEAR FILTER (10)
Total Body Collagen
CLEAR FILTER (16)
OsteoMove Supplements
CLEAR FILTER (2)
regenerlife
CLEAR FILTER (6)

Shop by Ingredient

Quercetin
CLEAR FILTER (10)
Turmeric
CLEAR FILTER (14)
Licorice Root
CLEAR FILTER (2)
Echinacea
CLEAR FILTER (22)
Oregano
CLEAR FILTER (6)
Wild Alaskan Salmon
CLEAR FILTER (2)
Cranberry
CLEAR FILTER (2)
Pharma Gaba
CLEAR FILTER (8)
Milk Thistle
CLEAR FILTER (8)
Bee Formulas
CLEAR FILTER (8)
zinc
CLEAR FILTER (18)
blueberry
CLEAR FILTER (4)
ashwagandha
CLEAR FILTER (6)
collagen
CLEAR FILTER (18)
coenzyme-q10
CLEAR FILTER (18)
elderberry
CLEAR FILTER (6)
grapeseed
CLEAR FILTER (8)
l-theanine
CLEAR FILTER (16)
Canneberge
CLEAR FILTER (1)

Collection

Immune Support

clear

Clear all

170 products

Filter

All Products

All Supplement and Vitamin Products
CLEAR FILTER (799)

Shop by Trending Categories

Whole Earth & Sea

Shop by Health Benefit

Health Essentials
CLEAR FILTER (48)
Stress and Sleep Solutions
CLEAR FILTER (90)
Detox and Cleanse
CLEAR FILTER (24)
Weight Management
CLEAR FILTER (24)
Bladder and Urinary Support
CLEAR FILTER (15)
Brain and Cognitive Health
CLEAR FILTER (75)
Eye Health
CLEAR FILTER (39)
Sports Nutrition
CLEAR FILTER (40)
Men's Health
CLEAR FILTER (21)
Women's Health
CLEAR FILTER (30)

Shop by Specialty Line

Whole Earth & Sea
CLEAR FILTER (52)
CurcuminRich
CLEAR FILTER (12)
RxOmega-3 Omega-3 Supplements
CLEAR FILTER (10)
WellBetX Blood Sugar Balance Supplements
CLEAR FILTER (8)
Premium Probiotic
CLEAR FILTER (8)
HerbalFactors
CLEAR FILTER (46)
Rich Super Strength Concentrate Fruit Supplements
CLEAR FILTER (26)
PGX Weight Loss Supplements
CLEAR FILTER (6)
BioCoenzymated Vitamin B
CLEAR FILTER (16)
Whey Factors Protein Powder
CLEAR FILTER (6)
OmegaFactors Omega-3 Supplements
CLEAR FILTER (10)
MultiFactors Multivitamins
CLEAR FILTER (8)
Big Friends Kids Vitamins
CLEAR FILTER (24)
SeaRich Omega-3 Supplements
CLEAR FILTER (8)
Detoxitech
CLEAR FILTER (4)
RevitalX & Detoxitech
CLEAR FILTER (4)
RealEasy Meal Replacement Shakes
CLEAR FILTER (10)
Total Body Collagen
CLEAR FILTER (16)
OsteoMove Supplements
CLEAR FILTER (2)
regenerlife
CLEAR FILTER (6)

Shop by Ingredient

Quercetin
CLEAR FILTER (10)
Turmeric
CLEAR FILTER (14)
Licorice Root
CLEAR FILTER (2)
Echinacea
CLEAR FILTER (22)
Oregano
CLEAR FILTER (6)
Wild Alaskan Salmon
CLEAR FILTER (2)
Cranberry
CLEAR FILTER (2)
Pharma Gaba
CLEAR FILTER (8)
Milk Thistle
CLEAR FILTER (8)
Bee Formulas
CLEAR FILTER (8)
zinc
CLEAR FILTER (18)
blueberry
CLEAR FILTER (4)
ashwagandha
CLEAR FILTER (6)
collagen
CLEAR FILTER (18)
coenzyme-q10
CLEAR FILTER (18)
elderberry
CLEAR FILTER (6)
grapeseed
CLEAR FILTER (8)
l-theanine
CLEAR FILTER (16)
Canneberge
CLEAR FILTER (1)

Collection

Immune Support

clear

L-Lysine 1000 mg, Natural Factors|v|image|2859

L-lysine Amino Acid 1000 mg

Helps reduce recurrence, severity, and healing time of cold sores Learn More

L-Lysine 500 mg, Natural Factors|v|image|2858

L-Lysine Amino Acid 500 mg

Helps reduce recurrence, severity, and healing time of cold sores Learn More

Liposomal Vitamin C

Provides advanced vitamin C absorption Learn More

Lung, Bronchial & Sinus Health, HerbalFactors

Helps relieve sinus, respiratory, and cough discomfort Learn More

Mega Halibut Liver Oil

Promotes healing and helps boost the immune system Learn More

Micronized L-Glutamine 1000 mg, Natural Factors|v|image|2857

Micronized L-Glutamine Amino Acid 1000 mg

Enhances muscle recovery, energy, and immunity Learn More

Micronized L-Glutamine 5 g, Natural Factors|v|image|2798

Micronized L-Glutamine Amino Acid 5 g Powder

Accelerates recovery and energy, and supports muscle growth Learn More

Micronized L-Glutamine 500 mg, Natural Factors|v|image|2820

Micronized L-Glutamine Amino Acid 500 mg

Enhances muscle recovery, energy, and immunity Learn More

N-Acetyl-L-Cysteine 1000 mg

Protects against free radical damage Learn More

N-Acetyl-L-Cysteine 500 mg, Natural Factors|v|image|2815

N-Acetyl-L-Cysteine Amino Acid 500 mg

Protects against free radical damage Learn More

N-Acetyl-L-Cysteine 600 mg, Natural Factors|v|image|8003

N-Acetyl-L-Cysteine Amino Acid 600 mg

Protects against free radical damage Learn More

Oil of Oregano 180 mg 60 Softgels, image-hi-res

Oil of Oregano 180 mg Softgels

Provides antioxidant activity Learn More

Organic Oil of Oregano, Natural Factors|v|image|4571

Oil of Oregano Liquid

Provides antioxidant activity Learn More

Olive Leaf 500 mg, HerbalFactors

Exerts powerful antiviral activity Learn More

Quercetin LipoMicel®

Enhanced source of the antioxidant quercetin with 10 times higher absorption Learn More

Quercetin with Zinc & Copper 500 mg

Specially formulated plant-enhanced immune support Learn More

Quick-Blast

Soothes your throat and clears your sinuses Learn More

Rutin 250 mg

Effective antioxidant for good health and to increase circulation Learn More

Sambucus Black Elderberry with Vitamins C & D plus Zinc

Relieves cold and flu symptoms Learn More

Selenium 100 mcg

Supports the maintenance of good health Learn More

Selenium 200 mcg

Supports the maintenance of good health Learn More

Selenium 50 mcg

Supports the maintenance of good health Learn More

SelenoExcell Selenium 200 mcg

Potent antioxidant mineral and free radical scavenger Learn More

Plan Bee: The Factors Farms® Apiary
Bee the change! Did you know that we are currently witnessing a...

1 min read
A Parent’s Guide to Kids’ Vitamins
Should kids take vitamins? Well, our bodies run on nutrients. From energy...

5 mins read
The Best Supplements for Heart Health
Heart disease in Canada is a major problem, with 9 in 10...

5 mins read

Collection: Immune Support

Filter and sort

All Products

Shop by Trending Categories

Shop by Category

Shop by Health Benefit

Shop by Specialty Line

Shop by Ingredient

Collection

All Products

Shop by Trending Categories

Shop by Category

Shop by Health Benefit

Shop by Specialty Line

Shop by Ingredient

Collection

FEATURED ARTICLES

1 min read

5 mins read

5 mins read

Our Nature

We care about…

The Source

Purity

The Planet

People