Immunity
Adding Endurance Products dietary supplements is a great way to support our healthy immune system function. These supplements provide micro-nutrients and antioxidants that help us stay healthy and ensure healthy inflammatory responses.

Immunity
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View All ProductsAdding Endurance Products dietary supplements is a great way to support our healthy immune system function. These supplements provide micro-nutrients and antioxidants that help us stay healthy and ensure healthy inflammatory responses.
Taxifolin Complex SR

Sustained Release
On Sale from $56.99
Regular price
$65.99
A powerful antioxidant, consisting of dihydroquercetin and high-potency vitamin C and zinc, it promotes heart and blood vessel health and healthy endothelial function (membrane that lines the heart and blood vessels).
At-a-Glance
- Supports the body’s antioxidant defenses*
- Helps maintain immune health*
- Promotes heart health & healthy circulation*
- Formulated for steady release over 5-7 hours
- With GRAS-affirmed Lavitol® dihydroquercetin (taxifolin), a premier brand backed by an extensive safety evaluation
Product Description
Taxifolin Complex SR is ideal for adults who want to take antioxidant protection and immune defense to the next level without compromising convenience.
Taxifolin Complex SR features high-potency vitamin C, highly bioavailable zinc bisglycinate, and Lavitol® a patented bioflavonoid extract dihydroquercetin (taxifolin). Lavitol® dihydroquercetin is a prized plant antioxidant sourced from Dahurian larch trees native to Siberia, backed by an extensive safety evaluation, and affirmed GRAS (Generally Recognized as Safe) for use in foods and dietary supplements.*
By using our proprietary vegetable wax-matrix tablet core, each sustained-release tablet slowly dissolves for a steady release of this powerful antioxidant trio over a period of 5 to 7 hours to promote optimal absorption and tissue retention.*
Taxifolin Complex SR exerts its key health benefits in a variety of ways, including:
- Vitamin C helps neutralize free radicals that can harm cells, including cells that line your blood vessels (endothelial cells). In the blood, vitamin C helps recycle and reactivate another antioxidant, vitamin E. Vitamin C helps maintain the protective membranes that line the nose, mouth, throat and intestinal tract. It also plays a role in the production or activation of key immune cells, helps ensure a healthy inflammatory response, and helps protect the integrity of the skin and underlying capillaries.*
- Zinc protects cells from oxidative damage primarily as a component of the enzyme superoxide dismutase (SOD). Zinc plays a key role in the optimal function of several immune cells — neutrophils, natural killer cells and T-lymphocytes — that help maintain a healthy immune function. Like vitamin C, zinc also helps maintain the integrity of skin and the protective membranes that line the nose, mouth, throat and intestinal tract.*
- Taxifolin may exert its antioxidant effects by helping to recycle and reactivate vitamin C, based on pre-clinical research. Emerging research also shows that taxifolin, also known as dihydroquercetin, may be better able to protect capillary function compared to regular quercetin, thanks to its special chemical configuration.*
Lavitol® is a registered trademark of Ametis Co. Ltd.
Features
- Easy-to-swallow tablets
- NO salt, sugar, starch, artificial flavors, colors, sweeteners or preservatives
- Gluten-free
- Vegan/Vegetarian
- Free of common allergens (milk, egg, fish, shellfish, soy, peanuts, tree nuts and wheat)
- Sustained release (5-7 hours)
Also available from your licensed healthcare practitioner at Natural Partners/Fullscript™ and WholeScripts™ online dispensaries.
Frequently Asked Questions
What can you expect?
Taxifolin Complex SR works to fortify your body’s antioxidant defenses and promote whole body health, including immune defense, heart health and healthy circulation.*
How does it work?
Each sustained-release tablet slowly releases vitamin C, zinc and taxifolin over a period of 5 to 7 hours. This steady release helps ensure optimal absorption and retention of these key antioxidants in cells, tissues, and organs where they can exert their protective benefits.*
How do you take it?
As a dietary supplement for adults, take one (1) tablet, twice daily with food, or as directed by a healthcare professional.
What are the inactive ingredients?
The inactive ingredients include: Vegetable wax (rice bran and/or carnauba), stearic acid (vegetable), magnesium stearate (vegetable), and silica.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medication or are pregnant, planning to become pregnant, or nursing.
What product quality control tests are performed?
Taxifolin Complex SR is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
ENDUR-C® 500mg Vitamin C with Rose Hips

Sustained Release
On Sale from $13.99
Regular price
$26.99
With high-potency antioxidant vitamin C, it supports healthy blood vessel and endothelial function, promoting overall vascular health.
At-a-Glance
- Supports the body’s antioxidant defenses*
- Helps maintain optimal blood vessel function*
- Promotes immune, skin & nerve health*
- Provides a gradual, measured release of ascorbic acid over 5 to 7 hours
Product Description
ENDUR-C® 500mg with Rose Hips (Sustained Release) is ideal for adults who want to fortify the body’s antioxidant defenses and promote optimal immune, skin and nerve health. People interested in healthy blood vessel function and optimal blood flow can also experience benefits.*
ENDUR-C® combines high-potency vitamin C with a unique sustained-release tablet delivery, resulting in a slow and steady release of ascorbic acid over 5 to 7 hours. By releasing small amounts of vitamin C at a time as the tablet travels through the intestine, ENDUR-C® allows your body to slowly absorb vitamin C. In this way, it not only helps maintain optimal blood and tissue levels, but avoids excess loss in the urine that is typical of regular forms of high-dose vitamin C.
ENDUR-C® helps minimize digestive upset that some people experience with regular forms of vitamin C.*
ENDUR-C® exerts its antioxidant effect in two ways. Throughout your body, it helps neutralize free radicals that can harm cells, including the endothelial cells that line your blood vessels. These cells play a key role in the ability of blood vessels to relax and promote optimal blood flow. In the blood, it helps recycle and reactivate another antioxidant, vitamin E.*
ENDUR-C® is available in two strengths: 500 mg and 1000 mg.
Features
- Easy-to-swallow tablets
- No salt, sugar, starch, preservatives, artificial colors or flavorings
- Gluten-free
- Vegan/Vegetarian
- Free of common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat and soy)
Frequently Asked Questions
What can you expect?
ENDUR-C® is a unique dietary supplement for men and women that delivers powerful antioxidant protection for your body and blood vessels, supports immune function, and promotes skin and nerve health.*
How does it work?
In the body, each tablet dissolves slowly over 5 to 7 hours to release ascorbic acid at the preferred rate for optimal absorption and tissue retention.
How do you take it?
As a dietary supplement for adults, take one (1) tablet daily, preferably with a meal, or as directed by your healthcare provider.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are pregnant or nursing. As with all dietary supplements, keep out of reach of children.
What product quality control tests are performed?
ENDUR-C® is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
ENDUR-C® 1000mg Vitamin C with Rose Hips

Sustained Release
On Sale from $18.99
Regular price
$30.99
With high-potency antioxidant vitamin C, it supports healthy blood vessel and endothelial function, promoting overall vascular health.
At-a-Glance
- Supports the body’s antioxidant defenses*
- Helps maintain optimal blood vessel function*
- Promotes immune, skin & nerve health*
- Provides a gradual, measured release of ascorbic acid over 5 to 7 hours
Product Description
ENDUR-C® 1000mg with Rose Hips (Sustained Release) is ideal for adults who want to fortify the body’s antioxidant defenses and promote optimal immune, skin, and nerve health. People interested in healthy blood vessel function and optimal blood flow can also benefit.*
ENDUR-C® combines high-potency vitamin C with a unique sustained-release tablet delivery, resulting in a slow and steady release of ascorbic acid over 5 to 7 hours. By releasing small amounts of vitamin C at a time as the tablet travels through the intestine, ENDUR-C® allows your body to slowly absorb vitamin C. In this way, it not only helps maintain optimal blood and tissue levels, but avoids excess loss in the urine that is typical of regular forms of high-dose vitamin C.
ENDUR-C® helps minimize digestive upset that some people experience with regular forms of vitamin C.*
ENDUR-C® exerts its antioxidant effect in two ways. Throughout your body, it helps neutralize free radicals that can harm cells, including the endothelial cells that line your blood vessels. These cells play a key role in the ability of blood vessels to relax and promote optimal blood flow. In the blood, it helps recycle and reactivate another antioxidant, vitamin E.*
ENDUR-C® is available in two strengths: 500 mg and 1000 mg.
Features
- Easy-to-swallow tablets
- No salt, sugar, starch, preservatives, artificial colors or flavorings
- Gluten-free
- Vegan/Vegetarian
- Free of common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat and soy)
Frequently Asked Questions
What can you expect?
ENDUR-C® is a unique dietary supplement for men and women that delivers powerful antioxidant protection for your body and blood vessels, supports immune function, and promotes skin and nerve health.*
How does it work?
In the body, each tablet dissolves slowly over 5 to 7 hours to release ascorbic acid at the preferred rate for optimal absorption and tissue retention.
How do you take it?
As a dietary supplement for adults, take one (1) tablet daily, preferably with a meal, or as directed by your healthcare provider.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are pregnant or nursing. As with all dietary supplements, keep out of reach of children.
What product quality control tests are performed?
ENDUR-C® is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
ENDUR-VM® Multi-Vitamin & Mineral without Iron

Sustained Release
From $15.99
Supports cardiovascular health with 22 essential vitamins and minerals (plus iron if needed) including antioxidants, energizing B vitamins, D3, and trace minerals.
At-a-Glance
- Balanced, high-potency formula
- 22 essential vitamins and minerals
- Without iron for men and postmenopausal women
- Sustained-release delivery for high bioavailability
- Available with iron for women of childbearing years.
Product Description
ENDUR-VM® Multi-Vitamin & Mineral Sustained Release (SR) (Without Iron) is an innovative iron-free daily multivitamin formulated for heart health, with selenium, folate, biotin, and B vitamins. It is especially beneficial for mature adults to help counteract an age-related decline in nutrient absorption.*
ENDUR-VM® SR (Without Iron) is a high-potency formula with 22 essential vitamins and minerals, including protective antioxidants, energizing B vitamins, vitamin D3, and trace minerals.
ENDUR-VM® SR (Without Iron) features a proprietary vegetable-based wax matrix that gradually releases nutrients over a 4-6 hour period for high absorption and tissue retention.*
Also available with iron to support the nutritional needs of people prone to low iron levels.
Features
- Easy-to-swallow tablets
- No salt, sugar, starch, artificial colors or flavorings, or preservatives
- Gluten-free
- Vegan/Vegetarian
- Free of common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat and soy)
Frequently Asked Questions
What can you expect?
ENDUR-VM® SR (Without Iron) is a convenient, once-daily solution for men and postmenopausal women to help fill nutrient gaps that can occur between what your typical diet provides and what your body needs for optimal health.*
How does it work?
By using a proprietary wax matrix delivery technology, each tablet dissolves slowly, resulting in a continuous release of nutrients over 4 to 6 hours. This promotes high nutrient absorption and optimal tissue retention, especially for water-soluble B vitamins and vitamin C.
How do you take it?
As a dietary supplement for adults, take one (1) tablet daily with a full glass of water, preferably with a meal. It is normal for this product to have a distinctive botanical aroma.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are nursing or pregnant. As with all dietary supplements, keep out of reach of children.
What product quality control tests are performed?
ENDUR-VM® SR (Without Iron) is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
ENDUR-VM® Multi-Vitamin & Mineral with Iron

Sustained Release
$15.99
With 22 essential vitamins and minerals (23 with iron), this high-potency formula helps fill any nutrient gaps between our diets and what our bodies need to fully support your healthy heart and blood vessels.
At-a-Glance
- Balanced, high-potency formula
- 23 essential vitamins and minerals
- With iron for women of childbearing years
- Sustained-release delivery for high bioavailability
- Available without iron for men and postmenopausal women
Product Description
ENDUR-VM® Multi-Vitamin & Mineral Sustained Release (SR) (With Iron) is an innovative daily multivitamin formulated for heart health, with selenium, folate, biotin, and B vitamins. It also supports the nutritional needs of people prone to low iron levels.
ENDUR-VM® SR (With Iron) is a high-potency formula with 23 essential vitamins and minerals, including protective antioxidants, energizing B vitamins, vitamin D3, and trace minerals.
ENDUR-VM® SR (With Iron) features a proprietary vegetable-based wax matrix that gradually releases nutrients over a 4 to 6-hour period for high absorption and tissue retention.*
Also available without iron.
Features
- Easy-to-swallow tablets
- No salt, sugar, starch, artificial colors or flavorings, or preservatives
- Gluten-free
- Vegan/Vegetarian
- Free of common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat and soy)
Frequently Asked Questions
What can you expect?
ENDUR-VM® SR (With Iron) is a convenient, once-daily solution to help fill nutrient gaps that can occur between what your typical diet provides and what your body needs for optimal health.*
How does it work?
By using a proprietary wax matrix delivery technology, each tablet dissolves slowly, resulting in a continuous release of nutrients over 4 to 6 hours. This promotes high nutrient absorption and optimal tissue retention, especially for water-soluble B vitamins and vitamin C.
How do you take it?
As a dietary supplement for adults, take one (1) tablet daily with a full glass of water, preferably with a meal. It is normal for this product to have a distinctive botanical aroma.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are nursing or pregnant. As with all dietary supplements, keep out of reach of children.
What product quality control tests are performed?
ENDUR-VM® SR (With Iron) is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
Prebiotic Plus Chewable (60 tablets)

Chewable
On Sale
$16.99
Regular price
$19.99
With Actazin™ kiwi fruit powder and xylooligosaccharides from PreticX™ Prebiotic Complex, it promotes a healthy gut microflora, digestive health, and relief from occasional constipation.
At-a-Glance
- Promotes intestinal regularity & overall digestive health*
- Supports gut health by selectively increasing beneficial bacteria*
- Nourishes your body’s ability to maintain healthy gut microflora*
- Formulated for effective, yet gentle, daily use*
Product Description
Prebiotic Plus is a well-tolerated, stomach-friendly dietary supplement that helps relieve occasional constipation and promote intestinal regularity in adults.*
Using clinically tested ingredients, Prebiotic Plus helps your body balance gut bacteria for a microflora that is associated with healthy intestines.* Each chewable tablet provides:
- PreticX™ Prebiotic Complex with 1000 mg xylooligosaccharides (XOS), derived from non-GMO corn, helps stimulate the production and activity of beneficial microflora associated with health and wellness.*
- Actazin™ 300mg made from non-GMO kiwifruit supports intestinal regularity and relief of occasional constipation. Using a unique process, New Zealand green kiwifruit flesh is cold-processed to retain maximum nutrient content.*
Taken regularly, Prebiotic Plus promotes intestinal regularity, stimulates the growth of good bacteria in the intestines, and nourishes your body’s ability to maintain a healthy gut microflora.*
Features
- Chewable tablets for use with or without food
- Well-tolerated and stomach-friendly
- Vegan/ Vegetarian
- Non-GMO and gluten-free
- No salt, preservatives, artificial color or flavorings
- Free of common allergens (milk, egg, fish, shellfish, tree nuts, peanuts, wheat, and soy)
Frequently Asked Questions
What can you expect?
Prebiotic Plus promotes intestinal regularity by selectively nourishing beneficial bacteria in the intestines. Formulated for effective, yet gentle, daily use. Prebiotic Plus helps to balance gut microflora and relieve occasional constipation.*
How does it work?
A prebiotic is a non-digestible ingredient that persists into the colon where it feeds beneficial bacteria. Prebiotic Plus provides a clinically researched amount of prebiotic XOS shown to help increase the growth and activity of beneficial bacteria (probiotics) in the colon. Actazin™ kiwifruit powder works to help maintain bowel regularity.*
How do you take it?
As a dietary supplement, chew one (1) tablet, twice daily, or as directed by your healthcare practitioner. May be taken with or without food. Take with a full glass of water.
Are there any precautions?
Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking any medications, or are pregnant or nursing. As with all dietary supplements, keep out of reach of children.
What product quality control tests are performed?
Prebiotic Plus is manufactured in the United States (Oregon) in a state-of-the-art, FDA-registered facility that meets or exceeds current Good Manufacturing Practices (cGMP). Quality control tests are performed at every stage of the manufacturing process from rigorous raw material testing to finished product testing.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any diseases.