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

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$1.35 (15)
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In Stock
  • Expiration Date: Apr 2019
  • Shipping Weight: 0.53 lbs (0.24 kg)
  • Product Code: CEN-21225
  • UPC Code: 740985212257
  • Package Quantity: 110 Tablets
  • Dimensions: 5.8 x 2.5 x 1.7 in, 0.45 lbs (0.2 kg)
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Save $4.00 when you purchase these items today for only $14.59
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Product Overview


  • Vitamin Supplement
  • 10% Free
  • Helps Neutralize Free Radicals and Supports A Healthy Immune System
  • Guaranteed Quality - Laboratory Tested

Vitamin C is an important antioxidant nutrient that helps neutralize free radicals which may cause cellular damage in the body. Vitamin C also supports a healthy immune system. 21st Century prolonged release Vitamin C-1000 provides long-term vitamin supplementation by slowly releasing nutrients to the body over an extended period of time.

Suggested Use

As a vitamin supplement, 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, cellulose, calcium carbonate, silicon dioxide, magnesium stearate.

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


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 % DV
Vitamin C (as Ascorbic Acid) 1000 mg 1667%
Percent Daily Value (DV).
iHerb Customer Reviews


Posted by 5198141525171177014 on Oct 13, 2016


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Great product

Posted by 5022709309092182312 on Sep 12, 2016

Prolonged release is a plus , so is the dose of 1000 , the price is excellent

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Posted by BeautyWealthLovelyFamily on Sep 09, 2016

Energy all day.

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Posted by 5753287768818936436 on Jun 26, 2016

This is good value for money and it works well. I will continue buying.

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Posted by 5432224756990642894 on Jun 10, 2016

Great value for money and it's getting hard to find slow release vita C.

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