Immune Supplements

A powerful botanical for heart health, metabolic support, glucose balance, and GI support*

Berberine provides nutritional support for maintaining healthy cholesterol and blood sugar levels, promoting GI microbial balance, and supporting healthy metabolism.*

A convenient combination of vitamin D and vitamin K for bone, cardiovascular, and immune support*

Vitamin D + K2 Liquid promotes bone health, healthy immune function, and cardiovascular health.* The combination of vitamin D3 and K2 provides greater benefits together than either does individually.

Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives. NSF Certified for Sport®

Get the antioxidant and immune-supporting benefits of vitamin C with citrus bioflavonoids*

Naturally occurring bioflavonoids from oranges optimize the beneficial effects and provide greater antioxidant capacity than vitamin C alone.*

Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives.

Provides antioxidant and immune support, while also promoting healthy, glowing skin*

Get support for healthy skin and optimal whole-body wellness with Vitamin C – a vitamin that promotes healthy immune function and collagen production.*

A well-researched form of zinc that exhibits superior absorption and tolerability*

Zinc supports skin and connective tissues, protects against oxidative stress, and promotes immune, eye, nerve, and reproductive health.*

Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives. NSF Certified for Sport®

A potent antioxidant that supports comprehensive wellness, including liver, respiratory, kidney, and immune health*

N-Acetylcysteine (NAC) is an amino acid that provides significant benefits by increasing the body’s production of glutathione and neutralizing free radicals to support detoxification.*

Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives.

A powerful botanical for heart health, immune support, weight management, and GI support*

Berberine is a natural plant alkaloid offering multiple health benefits. Key nutritional features include maintaining already healthy cholesterol and blood sugar levels, promoting GI microbial balance, and supporting healthy metabolism.*

Get the vitamin that supports healthy teeth, bones, and muscles, as well as cardiovascular and immune function*

Vitamin D, in its D3 form, is more potent and better absorbed form than its D2 form. Thorne’s vitamin D supplements contain no lactose and no preservatives.

A well-absorbed form of zinc that supports general health, from immune function to reproductive health*

Zinc Bisglycinate helps to support optimal wellness, promotes healthy connective tissue and skin repair, and helps maintain eye and reproductive health.*

A well-researched form of zinc that exhibits superior absorption and tolerability*

Zinc supports skin and connective tissues, protects against oxidative stress, and promotes immune, eye, nerve, and reproductive health.*

A well-absorbed form of zinc that supports general health, from immune function to reproductive health*

Zinc Bisglycinate helps to support optimal wellness, promotes healthy connective tissue and skin repair, and helps maintain eye and reproductive health.*

Lysine is an essential amino acid that promotes immune function, supports bone health and skin integrity, and encourages cellular repair*

Lysine, a vital building block for protein, is important for collagen formation, which provides structure for healthy skin, bones, and muscles.*

A potent antioxidant that supports comprehensive wellness, including liver, respiratory, kidney, and immune health*

N-Acetylcysteine (NAC) is an amino acid that provides significant benefits by increasing the body’s production of glutathione and neutralizing free radicals to support detoxification.*

Vegan vitamin D to support strong bones, cardiovascular health, and immune function*

Personalize your supplementation with potent vitamin D3 in a highly absorbable liquid form that provides precision doses of vitamin D, an important nutrient for all stages of life. 

Give your immune system an advantage with the optimized, plant-based antioxidant support of quercetin*

As a powerhouse antioxidant, Quercetin Phytosome supports healthy seasonal immune system function and promotes a healthy aging process for well-rounded daily wellness support.*

A well-researched form of zinc that exhibits superior absorption and tolerability*

Zinc supports skin and connective tissues, protects against oxidative stress, and promotes immune, eye, nerve, and reproductive health.*

A combination of quercetin phytosome and bromelain that provides seasonal wellness support, enhances immune function, and helps reduce bruising and swelling after minor injury*

Quercetin Complex combines bromelain, a compound of protein-digesting enzymes, with a highly absorbable form of quercetin. Quercetin stabilizes the body's mast cells, which store and release histamine.*

Vitamin C with buffering minerals, so it’s gentle on the stomach

High Potency Vitamin C supplies a higher amount of vitamin C per serving than our capsules, with calcium, magnesium, and potassium mineral-ascorbates that serve as a buffer to make it easier on the digestive system.

A well-researched form of zinc that exhibits superior absorption and tolerability*

Zinc supports skin and connective tissues, protects against oxidative stress, and promotes immune, eye, nerve, and reproductive health.* NSF Certified for Sport®