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Lung, Bronchial & Sinus Health
Nourishes the entire respiratory system!*
Regular price From $16.95Regular priceUnit price per -
Quercetin LipoMicel Matrix
Supports healthy sinus and immune system function*
Regular price From $27.95Regular priceUnit price per -
Bioactive Quercetin EMIQ
Supports healthy sinus and immune system function*
Regular price $33.95Regular priceUnit price per -
Vitamin D3 125 mcg (5,000 IU)
Supports healthy bones*
Regular price From $14.95Regular priceUnit price per -
SelenoExcell® Selenium
Provides antioxidant and immune support*
Regular price $13.95Regular priceUnit price per -
Oil of Oregano Liquid
Provides antioxidants for the maintenance of good health*
Regular price From $19.99Regular priceUnit price per -
N-Acetyl-L-Cysteine Amino Acid 600 mg
Supports healthy liver and lung function*
Regular price $15.95Regular priceUnit price per -
N-Acetyl-L-Cysteine Amino Acid 500 mg
Supports healthy liver and lung function*
Regular price $19.95Regular priceUnit price per -
Vitamin D3 50 mcg (2,000 IU)
Supports healthy bones*
Regular price From $10.95Regular priceUnit price per -
Oil of Oregano 180 mg Softgels
Provides antioxidants for the maintenance of good health*
Regular price From $13.95Regular priceUnit price per -
Vitamin C Time Release 1,000 mg
Supports healthy bones, cartilage, teeth, and gums*
Regular price From $13.95Regular priceUnit price per -
Micronized L-Glutamine Amino Acid 5,000 mg Powder
Support for muscle tissue and the immune system*
Regular price From $24.95Regular priceUnit price per -
L-Lysine Amino Acid
Supports a healthy immune system*
Regular price From $12.95Regular priceUnit price per -
Anti-V Formula Liquid
Provides immune system support*
Regular price From $15.95Regular priceUnit price per -
Quercetin with Zinc & Copper
Supports immune function*
Regular price $32.95Regular priceUnit price per -
C Extra + Quercetin Bioflavonoids
Immune support*
Regular price $19.95Regular priceUnit price per -
Anti-V Formula Softgels
Provides immune system support*
Regular price From $19.95Regular priceUnit price per -
Liposomal Vitamin C 1000mg
Provides enhanced vitamin C absorption
Regular price $19.95Regular priceUnit price per -
Zinc Citrate 50 mg
Supports healthy skin and immune function*
Regular price $8.95Regular priceUnit price per -
Zinc Citrate 15 mg
Supports healthy skin and immune function*
Regular price $7.95Regular priceUnit price per -
Vitamin D3 250 mcg (10,0000 IU)
Supports healthy bones*
Regular price $19.95Regular priceUnit price per -
Zinc Chelate 25 mg
Supports healthy skin and immune function*
Regular price $8.95Regular priceUnit price per -
Vitamin D3 25 mcg (1,000 IU)
Supports healthy bones*
Regular price $10.95Regular priceUnit price per
Frequently Asked Questions
We use both bovine and porcine-sourced gelatin depending on the product.
Natural Factors does not guarantee its final products to be halal. However, all vegetable-sourced capsules are both halal and kosher certified, all bovine-sourced softgels are both halal and kosher certified, and all bovine-sourced gelatin used to make softgels are both halal and kosher certified.
Natural Factors does not guarantee its final products to be kosher. However, all vegetable-sourced capsules are both kosher and halal certified, all bovine-sourced softgels are both kosher and halal certified, and all bovine-sourced gelatin used to make softgels are both kosher and halal certified.
Each product carries its own allergen statement that can be found on the product page. Please note that we are not a designated peanut-free facility, and therefore cannot label any of our products as "peanut-free."
We always recommend speaking with your health care practitioner before starting a new supplement.
Please see our "Find Retailers" page to find a retailer near you.
Please contact our Customer Service teamhere.
Please contact our Export team here.
Each product carries its own allergen statement that can be found on the product page. The statement includes whether the product is suitable for vegans and vegetarians.