21st Century
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21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
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21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct
Item #: 127730802

21st Century Vitamin C 500mg Prolonged Release Tablets, Immune, 110ct

85% of respondents would recommend this to a friend

Item #: 127730802

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What Stands Out

Prolonged Release
Designed for sustained delivery, ensuring optimal vitamin C levels throughout the day, which enhances absorption and effectiveness compared to standard tablets.
High Potency
Each tablet contains 500 mg of vitamin C, providing significant support for immune health and promoting overall well-being in a convenient, easy-to-swallow format.
Cost-effective Package
Includes four packs of 110 tablets, offering great value for frequent users who seek reliable vitamin C supplementation without compromising quality.

Product Details

Get long-term vitamin supplementation with 21st Century's Prolonged Release Vitamin C-500 tablets. Boost your immune system and neutralize free radicals. No additives or preservatives. Guaranteed purity and freshness. Shop at Ubuy Isle of Man
Product Dimensions 2.38 x 1.75 x 3.75 inches (6 x 4.4 x 9.5 cm); 4.15 ounces (117.65 grams)
Item model number 21190
Date First Available May 7, 2005
Manufacturer 21st Century
Brand Name21st Century
Item FormTablet
Primary Supplement TypeVitamin C
Diet TypeGluten Free
FlavorUnflavored
Product BenefitsImmune Support
Age Range DescriptionAdult
Specific Uses For ProductAntioxidant, Immunity
Number of Items1
Model Nameury C 500 mg Prolonged Release Tablets, 110 Count (21190)
Container TypeBottle
Dosage Form500
Global Trade Identification Number00740985211908
UPC740985211908
Item HighlightVitamin C 500 mg Time-Release Tablets, Immune & Antioxidant Support, Steady All-Day Release, Gluten Free
Model Number21190
Manufacturer Part Number21190
Unit Count110 Count
Item Weight4.16 ounces (117.94 grams)
Item Dimensions2.38 x 1.75 x 3.75 inches (6 x 4.4 x 9.5 cm)
Allergen InformationGluten Free
ColorNo Color
Material Type FreeGluten Free

Who Should Buy?

Suitable For
  • General Health Support

    Ideal for individuals wanting to boost their immune system and overall health with vitamin C supplementation.

  • Antioxidant Needs

    Beneficial for those seeking antioxidant support to combat oxidative stress and promote cellular health.

  • Prolonged Release Advantage

    Suitable for individuals who prefer a slow release formula for sustained vitamin C levels throughout the day.

Not Suitable For
  • Pregnant Women

    Not advisable for pregnant women without consulting healthcare professionals for appropriate vitamin intake.

Product Description

Dietary Supplement Disclaimer

Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.


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Customer Questions & Answers

  • Question: How to Shop 21st Century Vitamin C 500mg Prolonged Release Online From Ubuy?

    Answer: It’s easy to shop 21st Century Vitamin C 500mg Prolonged Release online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
  • Question: Is 21st Century Vitamin C 500mg Prolonged Release Available to Shop Online in Isle of Man?

    Answer: Yes, at Ubuy Isle of Man this product is available for you to shop at a reasonable price. The 21st Century Vitamin C 500mg Prolonged Release is not available locally but you can trust us with our express shipping services.
  • Question: How Long Does It Take to Get Product After Placing the Order?

    Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

Nutritionist's Take

21st Century Vitamin C 500mg Prolonged Release Tablets are designed to support immune health through gradual vitamin C release, which may enhance absorption. This product is suitable for those looking for a reliable source of antioxidants to combat oxidative stress. However, some nutritionists express concerns about prolonged release formulas, suggesting they may not be as effective for immediate needs. It's important to note that while vitamin C can support immune function, relying solely on supplements without a balanced diet may not be optimal for overall health. The ingredient quality appears standard, but individuals with specific dietary restrictions should check for allergens. Overall, this supplement can be a beneficial addition for those with higher vitamin C needs, but should complement a varied diet rather than replace whole food sources.

21st Century Vitamin C 21190 Editorial Review

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Customer Reviews & Ratings

4.6
399 customers ratings
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“My experience was great I really liked the fact that i get my order delivered within the days promised. The packaging , the product, shipment everything was so good, trustworthy and fast. Definitely will shop again”

28 October 2026 · via Trustpilot
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“Very easy to order. The product was good quality. The delivery service was excellent, updates given so you knew what was happening.”

30 October 2026 · via Trustpilot
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“Good experience The product I ordered came as expected. What most impressed me in dealing with Ubuy is the communication and updates I received through the process. I knew exactly where and when my item was at all times until delivery. Well done!”

31 October 2026 · via Trustpilot
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SJ Hong
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“The package came very quickly and the shipping fee was extremely reasonable! Overall, the service as well as my experience of ordering from Ubuy was a very pleasant experience! Thank you so much!”

31 October 2026 · via Trustpilot
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Szilvia
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“Great service. Ordered an item coming from the USA which wasn't available in Ireland or even for delivery from the retailer and it had arrived within a few days. Very happy with the product and the service.”

31 October 2026 · via Trustpilot

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