--- product_id: 661177604 title: "500 mg 24 Hour Vitamin C Tablets for Immune Support, Vitamin C Supplement, 90 Count (Pack of 4)" brand: "ester-c" price: "8133 kr" currency: ISK in_stock: true reviews_count: 8 category: "Ester C" url: https://www.desertcart.is/products/661177604-500-mg-24-hour-vitamin-c-tablets-for-immune-support store_origin: IS region: Iceland --- # 24-hour sustained release Non-GMO & vegetarian Supports immune & respiratory health 500 mg 24 Hour Vitamin C Tablets for Immune Support, Vitamin C Supplement, 90 Count (Pack of 4) **Brand:** ester-c **Price:** 8133 kr **Availability:** ✅ In Stock ## Summary > 🛡️ Stay strong, stay unstoppable — 24/7 immune power in every tablet! ## Quick Answers - **What is this?** 500 mg 24 Hour Vitamin C Tablets for Immune Support, Vitamin C Supplement, 90 Count (Pack of 4) by ester-c - **How much does it cost?** 8133 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/661177604-500-mg-24-hour-vitamin-c-tablets-for-immune-support) ## Best For - ester-c enthusiasts ## Why This Product - Trusted ester-c brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clean & Conscious:** Gluten-free, non-GMO, and vegetarian tablets crafted for the mindful health enthusiast. - • **Trusted & Top-Rated:** Join thousands of professionals who rely on Ester-C’s 4.8-star rated immune support for year-round vitality. - • **Gut-Friendly Formula:** Non-acidic, gentle on your stomach with no artificial colors, flavors, or sweeteners—perfect for daily wellness. - • **Around-the-Clock Immunity:** Clinically proven to stay active in your system twice as long as regular Vitamin C for 24-hour defense. - • **Powerful Antioxidant Support:** Boosts white blood cell retention to fortify your body’s natural defenses against seasonal challenges. ## Overview Ester-C 500 mg Vitamin C Tablets deliver clinically studied, 24-hour immune support with a non-acidic, gut-friendly formula. Each vegetarian, gluten-free tablet enhances white blood cell retention to boost respiratory and immune health, making it a top-rated choice for sustained wellness. ## Description Support your immune health all year long with Ester-C Vitamin C, a superior form of Vitamin C.(1) Ester-C 24 Hour Vitamin C Supplement Tablets for Immune Support offer a unique formula that stays in your system for up to 24 hours, so you have around-the-clock immune support.(1) The metabolites in Ester-C help enhance the retention of Vitamin C in your white blood cells, which are a vital component of your immune system.(1) These vitamin supplements are non-GMO, and Ester-C Vitamin C tablets are manufactured without chemicals to neutralize pH, which makes them non-acidic and gentle on your stomach. Incorporate this antioxidant vitamin supplement into your daily routine to give your immune system the support it needs.(1) Ester-C is the kind of support you can count on 24/7! (1)These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. (2)The Vitamin C in Ester-C has been clinically studied to stay in the white blood cells for up to 24 hours, which is longer than regular Vitamin C. White blood cells are an important component of the immune system. Review: Great product! - Easy on stomach & great for respiratory/immunity issues. (Dr. advised not for everyday use if you have a history of kidney stones.) Review: GOOD PRODUCT.!! - I have been using this product for numerous numerous years since it was placed on the shelf for supplement products. The tablet itself is easy for me to swallow and the taste is good. I like the idea that it helps with immune support (which we need help with). I even give my husband a tablet daily. I will continue to take this product. ## Features - The information below is per-pack only - One 90 count bottle of Ester-C 24 Hour 500 mg Vitamin C Tablets for Immune Support (1) - This Vitamin C Supplement is clinically studied to last up to two times longer than regular Vitamin C (1)(2) - These non-GMO, gluten free vegetarian vitamins are made with no artificial color, flavor, or sweetener - Vitamin C 500 mg tablets support upper respiratory health (1) - For adults, take two Ester-C 500 mg Vitamin C immune support supplements once daily, preferably with a meal (1) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D14WG9PK | | Allergen Information | Gluten Free | | Best Sellers Rank | #3,787 in Health & Household ( See Top 100 in Health & Household ) #35 in Vitamin C Supplements | | Brand Name | Ester-C | | Customer Reviews | 4.8 out of 5 stars 8,489 Reviews | | Diet Type | Vegetarian | | Dosage Form | Tablet | | Flavor | Unflavored | | Item Form | Tablet | | Item Weight | 1.4 Pounds | | Manufacturer | Ester-C | | Model Name | Ester C Vitamin Tablets | | Number of Items | 4 | | Product Benefits | Immune_support | | Unit Count | 360 Count | ## Product Details - **Brand:** Ester-C - **Item Form:** Tablet - **Diet Type:** Vegetarian - **Flavor:** Unflavored - **Product Benefits:** Immune_support ## Images ![500 mg 24 Hour Vitamin C Tablets for Immune Support, Vitamin C Supplement, 90 Count (Pack of 4) - Image 1](https://m.media-amazon.com/images/I/719z67VtV3L.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product! *by D***E on January 11, 2026* Easy on stomach & great for respiratory/immunity issues. (Dr. advised not for everyday use if you have a history of kidney stones.) ### ⭐⭐⭐⭐⭐ GOOD PRODUCT.!! *by A***R on December 23, 2025* I have been using this product for numerous numerous years since it was placed on the shelf for supplement products. The tablet itself is easy for me to swallow and the taste is good. I like the idea that it helps with immune support (which we need help with). I even give my husband a tablet daily. I will continue to take this product. ### ⭐⭐⭐⭐⭐ Best vit c *by M***Y on December 9, 2025* My favorite vitamin c. Have been using these for years and believe they have prevented a lot of colds I worked in retail for years and was always in close contact with people. I would never be sick. Now I volunteer and am in contact with a lot of people and staying very healthy. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/661177604-500-mg-24-hour-vitamin-c-tablets-for-immune-support](https://www.desertcart.is/products/661177604-500-mg-24-hour-vitamin-c-tablets-for-immune-support) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-04-22*