--- product_id: 47698738 title: "Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic" brand: "sfi health" price: "42833CFA" currency: XOF in_stock: true reviews_count: 4 url: https://www.desertcart.sn/products/47698738-klaire-labs-sfi-health-ester-c-100-capsules-immune-antioxidant store_origin: SN region: Senegal --- # Hypoallergenic & allergen-free 500 mg buffered Vitamin C Gentle, non-acidic formula Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic **Brand:** sfi health **Price:** 42833CFA **Availability:** ✅ In Stock ## Summary > 🛡️ Elevate your immunity—gentle, pure, and proven protection! ## Quick Answers - **What is this?** Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic by sfi health - **How much does it cost?** 42833CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/47698738-klaire-labs-sfi-health-ester-c-100-capsules-immune-antioxidant) ## Best For - sfi health enthusiasts ## Why This Product - Trusted sfi health brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Clean & Pure Wellness:** Free from common allergens and artificial additives—because your health deserves the best. - • **Clinically Trusted Since 1969:** Formulated with patented mineral ascorbates and metabolites, backed by decades of healthcare practitioner trust. - • **Sustained Antioxidant Support:** Unique vitamin C metabolites enhance absorption and retention for longer-lasting immune defense. - • **Stomach-Friendly Immunity Boost:** Buffered Ester-C delivers 500 mg of vitamin C without acidity, perfect for sensitive stomachs. - • **Millennial-Approved Daily Essential:** Compact 100-capsule pack fits your busy lifestyle and wellness goals effortlessly. ## Overview Klaire Labs SFI Health Ester-C offers a patented, non-acidic 500 mg vitamin C formula designed for superior absorption and gentle digestion. Hypoallergenic and free from common allergens and artificial ingredients, this supplement supports immune and antioxidant health with trusted clinical backing since 1969. ## Description A non-acidic form of vitamin C that is gentle on the stomach. Created by a unique process resulting in a patented mixture of mineral ascorbates and vitamin C metabolites. Ester-C® can be taken by anyone who wishes to increase their intake of vitamin C. This non-acidic form may be more comfortably digested by those who have difficulty tolerating regular vitamin C.* ## Features - Ester-C is a buffered, non-acidic form of vitamin C that is gentle on the stomach.* - Created by a unique process resulting in a patented mixture of mineral ascorbates and vitamin C metabolites. - May be more comfortably digested by those who have difficulty tolerating regular vitamin C.* - Hypoallergenic* product free of the following common allergens: milk/ casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives. - Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B01B6UENEQ | | Best Sellers Rank | #600 in Vitamin C Supplements | | Date First Available | July 30, 2014 | | Manufacturer | SFI Health | | Package Dimensions | 3.9 x 1.93 x 1.93 inches; 3.53 ounces | ## Product Details - **Brand:** SFI Health - **Diet Type:** Gluten Free - **Flavor:** Unflavored - **Item Form:** Capsule - **Primary Supplement Type:** Vitamin C Capsules ## Images ![Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic - Image 1](https://m.media-amazon.com/images/I/61cIetc6JcL.jpg) ![Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic - Image 2](https://m.media-amazon.com/images/I/51S2nuW5diL.jpg) ![Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic - Image 3](https://m.media-amazon.com/images/I/61uevoSwd-L.jpg) ![Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic - Image 4](https://m.media-amazon.com/images/I/718+Nc6UuBL.jpg) ![Klaire Labs SFI Health Ester-C, 100 Capsules | Immune & Antioxidant Support, 500 mg Buffered Vitamin C, Non-Acidic Form Designed to Be Gentle On the Stomach, Hypoallergenic - Image 5](https://m.media-amazon.com/images/I/71CpgyjJ0OL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good rating *by on Reviewed in the United States May 11, 2026* Good rating. ### ⭐⭐⭐⭐⭐ worth the extra cot *by on Reviewed in the United States October 18, 2023* Tried different Brands but with Klare labs here is a difference ### ⭐⭐⭐⭐⭐ Great *by on Reviewed in the United States July 27, 2018* Great supplement ## Frequently Bought Together - Klaire Labs Ester-C - 500 mg Buffered Vitamin C - Non-Acidic Form Designed to Be Gentle On The Stomach - Immune & Antioxidant Support - Hypoallergenic (100 Capsules) - Klaire Labs Vitamin D3 5000 IU - High Potency Vitamin D 125mcg - Immune Support - Helps Promote Bone & Heart Health - Hypoallergenic (100 Capsules) - Klaire Labs Thera-B - Essential Vitamin B Complex, Hypoallergenic Formula with Activated Metafolin Folate (L-5-MTHF), Biotin & Methylcobalamin (100 Tablets) --- ## 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.sn/products/47698738-klaire-labs-sfi-health-ester-c-100-capsules-immune-antioxidant](https://www.desertcart.sn/products/47698738-klaire-labs-sfi-health-ester-c-100-capsules-immune-antioxidant) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-21*