Vitamin C Icon Gluten Free Icon
ImmuBlast® Citrus by 21st Century HealthCare, Inc., view from the front.

21ST Century®
ImmuBlast® Citrus

Citrus Flavored

  • Helps Support your Immune System*
  • Vitamin C and 13 Vitamins, Minerals & Herbs

Compare VS. Airborne®† Chewables

AVAILABLE SIZES: 32 Tablets

ITEM 27696

AVAILABLE SIZES: 32 Tablets

ITEM 27696

1,000 mg of Vitamin C for Immune Support*

Antioxidant Vitamins A, C and E

Essential Antioxidant Minerals Zinc and Selenium*

Immune Support combines Vitamin C with 13 vitamins, minerals and herbs that support immune system health.* Immune Support chewable tablets can be taken conveniently without water. Just chew four tablets and continue with your busy day. Our natural citrus flavored chewable tablets taste great too!

Directions: As a dietary supplement, adults and children 12 years of age and older, chew four (4) tablets a day. Do not exceed recommended dosage. Individual results may vary.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.

Contains a bioengineered food ingredient.

No added Yeast or Artificial Flavors. Gluten Free.

†This product is not manufactured or distributed by RB Health (US) LLC, owner of the registered trademark Airborne®.

This information may differ from the product you purchased. Please refer to the supplement facts listed on the package label for information related to the purchased product.

Supplement Facts Serving Size 4 Tablets
Amount Per Serving % Daily Value
Calories 15  
Total Carbohydrate 3 g 1%‡
Total Sugars 3 g **
Includes 3 g Added Sugars   6%‡
Vitamin A (as Retinyl Acetate) 600 mcg 67%
Vitamin C (as Ascorbic Acid & Sodium Ascorbate) 1,000 mg 1,111%
Vitamin E (as dl-alpha Tocopheryl Acetate) 13.5 mg 90%
Magnesium (as Magnesium Oxide & Magnesium Sulfate) 40 mg 10%
Zinc (as Zinc Sulfate) 8 mg 73%
Selenium (as Selenium Amino Acid Chelate) 15 mcg 27%
Manganese (as Manganese Gluconate) 3 mg 130%
Sodium 40 mg 2%
Proprietary Herbal Extract Blend
(Lonicera japonica (flower), Forsythia suspensa (fruit), Schizonepeta tenuifolia (aerial), Ginger (Zingiber officinale) (root), Vitex trifolia (fruit), Isatis tinctoria (root), Echinacea purpurea (aerial))
35.5 mg **
‡ Percent Daily Values are based on a 2,000 calorie diet.
** Daily Values not established.

Other Ingredients: Dextrose, Cellulose, Natural Orange Flavor. Contains <2% of: Magnesium Stearate, Silicon Dioxide, Sucralose.

A top view of oranges, kiwi, tomato, broccoli, lemon, and red pepper next to text that says Vitamin C.

Vitamin C – The Benefits

You’ve all heard of vitamin C. You know it’s most likely in your daily multi-vitamin. But, do you know its benefits?

Two glasses filled with smoothies next to bowls of strawberries, blueberries and raspberries.

Smoothies High in Vitamin C

There’s nothing like starting your morning off with an immune boosting smoothie. It’s not as complicated as it may seem; all you need is the powerful antioxidant, Vitamin C!* Nobody has ever complained about having too healthy an immune system, so if you are feeling like you need a boost or if it’s that time of year when everyone seems to be catching something, check out these Vitamin C smoothie recipes!

Box of ImmuBlast-C next to popsicles on a plate

ImmuBlast-C Watermelon Raspberry Popsicles by @kristen.carli

Give your immune system and taste buds a boost with these tasty ImmuBlast-C Popsicles by @kristen.carli, a 21st Century HeathCare wellness blog contributor. These fruit-filled popsicles contain 15 nutrients, including electrolytes, antioxidants, vitamin C, and many B vitamins, not to mention they are downright delicious.

1,000 mg of Vitamin C for Immune Support*

Antioxidant Vitamins A, C and E

Essential Antioxidant Minerals Zinc and Selenium*

Immune Support combines Vitamin C with 13 vitamins, minerals and herbs that support immune system health.* Immune Support chewable tablets can be taken conveniently without water. Just chew four tablets and continue with your busy day. Our natural citrus flavored chewable tablets taste great too!

Directions: As a dietary supplement, adults and children 12 years of age and older, chew four (4) tablets a day. Do not exceed recommended dosage. Individual results may vary.

Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.

Contains a bioengineered food ingredient.

No added Yeast or Artificial Flavors. Gluten Free.

†This product is not manufactured or distributed by RB Health (US) LLC, owner of the registered trademark Airborne®.

This information may differ from the product you purchased. Please refer to the supplement facts listed on the package label for information related to the purchased product.

Supplement Facts Serving Size 4 Tablets
Amount Per Serving % Daily Value
Calories 15  
Total Carbohydrate 3 g 1%‡
Total Sugars 3 g **
Includes 3 g Added Sugars   6%‡
Vitamin A (as Retinyl Acetate) 600 mcg 67%
Vitamin C (as Ascorbic Acid & Sodium Ascorbate) 1,000 mg 1,111%
Vitamin E (as dl-alpha Tocopheryl Acetate) 13.5 mg 90%
Magnesium (as Magnesium Oxide & Magnesium Sulfate) 40 mg 10%
Zinc (as Zinc Sulfate) 8 mg 73%
Selenium (as Selenium Amino Acid Chelate) 15 mcg 27%
Manganese (as Manganese Gluconate) 3 mg 130%
Sodium 40 mg 2%
Proprietary Herbal Extract Blend
(Lonicera japonica (flower), Forsythia suspensa (fruit), Schizonepeta tenuifolia (aerial), Ginger (Zingiber officinale) (root), Vitex trifolia (fruit), Isatis tinctoria (root), Echinacea purpurea (aerial))
35.5 mg **
‡ Percent Daily Values are based on a 2,000 calorie diet.
** Daily Values not established.

Other Ingredients: Dextrose, Cellulose, Natural Orange Flavor. Contains <2% of: Magnesium Stearate, Silicon Dioxide, Sucralose.

A top view of oranges, kiwi, tomato, broccoli, lemon, and red pepper next to text that says Vitamin C.

Vitamin C – The Benefits

You’ve all heard of vitamin C. You know it’s most likely in your daily multi-vitamin. But, do you know its benefits?

Two glasses filled with smoothies next to bowls of strawberries, blueberries and raspberries.

Smoothies High in Vitamin C

There’s nothing like starting your morning off with an immune boosting smoothie. It’s not as complicated as it may seem; all you need is the powerful antioxidant, Vitamin C!* Nobody has ever complained about having too healthy an immune system, so if you are feeling like you need a boost or if it’s that time of year when everyone seems to be catching something, check out these Vitamin C smoothie recipes!

Box of ImmuBlast-C next to popsicles on a plate

ImmuBlast-C Watermelon Raspberry Popsicles by @kristen.carli

Give your immune system and taste buds a boost with these tasty ImmuBlast-C Popsicles by @kristen.carli, a 21st Century HeathCare wellness blog contributor. These fruit-filled popsicles contain 15 nutrients, including electrolytes, antioxidants, vitamin C, and many B vitamins, not to mention they are downright delicious.

Have a question or can't find what you are looking for?

21ST Century Healthcare respects your privacy. The information you provide below is only used to respond to your inquiries unless you inform us otherwise. To learn more about how we handle personal information, visit our Privacy Policy.

If you have a question about our product or are looking for something that you just can't find, please send us a note below.

Please enter your name.
Please enter a valid email address.
Please enter your question.
Please agree to our Terms of Use and Privacy Policy.