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🛡️ Stay strong, stay steady — Vitamin C that works as hard as you do!
21st Century C 500 mg Prolonged Release Tablets provide a steady, long-lasting supply of vitamin C to support antioxidant protection and immune health. With 110 gluten-free, allergen-safe tablets free from artificial additives, this supplement is designed for adults seeking clean, reliable daily wellness support.













| ASIN | B00166U2UA |
| ASIN | B00166U2UA |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #58,744 in Health & Household ( See Top 100 in Health & Household ) #339 in Vitamin C Supplements |
| Brand Name | 21st Century |
| Color | No Color |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (388) |
| Date First Available | May 7, 2005 |
| Diet Type | Gluten Free |
| Dosage Form | 500 |
| Flavor | Unflavored |
| Global Trade Identification Number | 00740985211908 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 2.38 x 1.75 x 3.75 inches |
| Item Form | Tablet |
| Item Weight | 4.15 ounces |
| Item model number | 21190 |
| Manufacturer | 21st Century |
| 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 |
| Product Dimensions | 2.38 x 1.75 x 3.75 inches; 4.15 ounces |
| Specific Uses For Product | Antioxidant, Immunity |
| UPC | 740985211908 |
| Unit Count | 110 Count |
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