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21st Century, C-1000, Prolonged Release, 110 Tablets

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21st Century, C-1000, Prolonged Release, 110 Tablets

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21st Century, C-1000, Prolonged Release, 110 Tablets

In Stock
  • Expiration Date: 07/2020
  • Shipping Weight:
    0.53 lbs
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  • Product Code: CEN-21225
  • UPC Code: 740985212257
  • Package Quantity: 110 Tablets
  • Dimensions:
    5.8 x 2.5 x 1.7 in, 0.45 lbs
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Frequently Purchased Together
Product Overview


  • Vitamin Supplement
  • 10% Free
  • Immune System Support
  • Guaranteed Quality - Laboratory Tested

Vitamin C is an important antioxidant nutrient that helps neutralize free radicals and supports the immune system. Prolonged release vitamins slowly release nutrients into the body over an extended period of time.

Suggested Use

As a vitamin supplement, adults take one (1) tablet daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.

Other Ingredients

Hydroxypropyl methylcellulose, stearic acid, cellullose. Contains <2% of: Calcium carbonate, magnesium stearate, maltodextrin, peg, polyvinyl alcohol, silicon dioxide, talc, titanium dioxide.

No added sugar, salt, yeast, preservatives, artificial flavors or colors. Gluten free.


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.

Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %Daily Value
Vitamin C (as Ascorbic Acid) 1,000 mg 1667%
iHerb Customer Reviews

Good potence for that price

Posted by iHerb Customer on Jan 21, 2018 | Verified Purchase

Like this product a lot, seems it works and the price is good.

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Hope of the best

Posted by iHerb Customer on Oct 28, 2017 | Verified Purchase

I ordered this because I workoung with sick children and I the high immune support. I take one after breakfast and I don't have problems with my stomach. Hope for the best.

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It's great product

Posted by iHerb Customer on Oct 18, 2017 | Verified Purchase

I like this product.

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Posted by iHerb Customer on Sep 23, 2017 | Verified Purchase

hea toidulisand ja hea hind

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Posted by iHerb Customer on Sep 14, 2017 | Verified Purchase

Every day I take one and never have a cold the best you can take

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