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🛡️ Stay unstoppable with all-day immune defense!
21st Century Vitamin C 500mg Prolonged Release Tablets provide a steady, slow-release dose of Vitamin C to support immune health and antioxidant protection. With 110 vegan, gluten-free tablets free from additives, this trusted supplement from a 30-year industry leader ensures pure, reliable nutrition designed for sustained wellness throughout your day.













| ASIN | B00166U2UA |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #69,873 in Health & Household ( See Top 100 in Health & Household ) #405 in Vitamin C Supplements |
| Brand | 21st Century |
| Brand Name | 21st Century |
| Color | No Color |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 397 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | 500 |
| Flavor | Unflavored |
| Global Trade Identification Number | 00740985211908 |
| Item Dimensions | 2.38 x 1.75 x 3.75 inches |
| Item Form | Tablet |
| Item Highlight | Vitamin C 500 mg Time-Release Tablets, Immune & Antioxidant Support, Steady All-Day Release, Gluten Free |
| Item Weight | 4.16 ounces |
| Manufacturer | 21st Century |
| Manufacturer Part Number | 21190 |
| Material Type Free | Gluten Free |
| Model Name | ury C 500 mg Prolonged Release Tablets, 110 Count (21190) |
| Model Number | 21190 |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin C |
| Product Benefits | Immune Support |
| Specific Uses For Product | Antioxidant, Immunity |
| UPC | 740985211908 |
| Unit Count | 110 Count |
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