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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)
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

Nice deal

Posted by 4666392955920419524 on Dec 25, 2016

Effective for immunity

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Posted by 5583996628411447535 on Dec 10, 2016

great products

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Posted by cattylee on Dec 09, 2016

iherb最便宜,跟鄉村生活加了玫瑰果的維他命C感覺起來並無兩樣,長效型的可以緩慢釋放,不至於吞太多顆卻因過量一下子就排出體外,自從恢復吃維他命C之後臉上的法令紋變淡,膠原蛋白有恢復的趨勢,後來才知道膠原蛋白的製造缺不了維他命C,平常少吃蔬菜水果的人一定要補充,對身體很多方面都非常重要。不過要皮膚好還是要改變熬夜晚睡的習慣,因為膠原蛋白的製造時間似乎是在晚上十點到凌晨兩點(?),所以愛美的女士請一定要早睡。 這是長條狀的錠劑,不算太大顆,如果怕吞嚥困難可以掰成一半再吞下去。

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This looks like a fine product.

Posted by 5130115060011354798 on Nov 30, 2016

Vitamins are essential for your health and you get a good deal with these tablets.

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Realmente top

Posted by 4768929380824153154 on Nov 04, 2016

Produto incrível, aumentou minha imunidade e manteve o meu nível de vitamina C em alta por muito tempo. Recomendo!

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