---
product_id: 66617928
title: "Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count"
brand: "ester-c"
price: "$36.22"
currency: USD
in_stock: true
reviews_count: 8
category: "Ester C"
url: https://www.desertcart.us/products/66617928-ester-c-american-health-with-citrus-bioflavonoids-capsules-24-hour
store_origin: US
region: United States of America
---

# Non-acidic, gentle on stomach Citrus bioflavonoids for optimal absorption 24-hour immune support Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count

**Brand:** ester-c
**Price:** $36.22
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your immunity game with Ester-C — the daily defense your body craves!

## Quick Answers

- **What is this?** Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count by ester-c
- **How much does it cost?** $36.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/66617928-ester-c-american-health-with-citrus-bioflavonoids-capsules-24-hour)

## 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 & Pure:** Non-GMO, gluten-free, and free from common allergens—because your health deserves the best.
- • **All-Day Defense:** One 1000 mg capsule delivers powerful 24-hour immune support to keep you unstoppable.
- • **Trusted Quality:** Backed by thousands of 5-star reviews, a staple for proactive wellness warriors.
- • **Bioflavonoid Boost:** Enhanced with citrus bioflavonoids for superior Vitamin C absorption and utilization.
- • **Stomach-Friendly Formula:** Non-acidic, pH-neutral Ester-C ensures gentle digestion without discomfort.

## Overview

Ester-C American Health Capsules provide a potent 1000 mg dose of non-acidic Vitamin C with citrus bioflavonoids, delivering 24-hour immune support. Its unique water-based formula is gentle on the stomach and enhanced with naturally occurring metabolites to improve Vitamin C retention in white blood cells. Non-GMO and gluten-free, this trusted supplement is designed for adults seeking effective, all-day immune defense without digestive discomfort.

## Description

Ester-C is a unique breakthrough Vitamin C formula supported with naturally occurring metabolites. Metabolites help enhance the absorption of Vitamin C by your white blood cells, an important part of your immune system.(1) Ester-C's unique, chemical-free manufacturing process neutralizes pH, making it non-acidic and gentle on the stomach.(1) In a daily 1,000 mg dose, Ester-C delivers 24-hour immune support...so once a day is all you need.(1) Added Citrus Bioflavonoids may help your body better absorb and utilize Vitamin C.(1) (1)These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose treat cure or prevent any disease.

Review: Does not upset the stomach - Gentle on the stomach. Easy to swallow. Great price. I've been using this for years. I finally found another company desertcart that has a reasonably priced product because I use it all the time. I will buy it again and again. I would recommend it to everybody who wants a good vitamin C product
Review: Works well, good quality - My old brand was not available so I tried this Ester C. it does not give me an upset stomach, large capsule but I have no problem. Seems to work well, take it everyday to stay away from cold.

## Features

- 24-Hour Immune Support; Ester-C delivers 24-hour immune support, so one daily serving of 1000 mg is all you need; As a potent antioxidant, it helps fight free radicals, which can cause oxidative stress that may lead to the premature aging of cells
- Gentle On The Stomach; Ester-C's water-based manufacturing process neutralizes pH, making it non-acidic and gentle on the stomach
- Optimal Absorption; Added citrus bioflavonoids may help your body better absorb and utilize Vitamin C
- Naturally-Occurring Metabolites; The naturally-occurring metabolites in Ester-C may help enhance the retention of Vitamin C in your white blood cells, an important part of your immune system
- No gluten, no yeast, no wheat, milk or milk derivatives, no lactose, no soy, no egg, no grapefruit, no sugar, no artificial flavors, no sodium; Non-GMO

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072KCDJJP |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #4,675 in Health & Household ( See Top 100 in Health & Household ) #40 in Vitamin C Supplements |
| Brand | Ester-C |
| Brand Name | Ester-C |
| Color | No Color |
| Customer Reviews | 4.8 out of 5 stars 8,294 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Citrus |
| Item Dimensions | 6 x 6 x 6 inches |
| Item Form | Capsule |
| Item Weight | 6.4 ounces |
| Manufacturer | NPG Solgar |
| Model Name | American Health Ester-C with Citrus Bioflavonoid |
| Primary Supplement Type | Vitamin C |
| Product Benefits | Immune Support |
| Specific Uses For Product | Immune Support |
| UPC | 076630169752 772195632020 |
| Unit Count | 90 Count |

## Product Details

- **Brand:** Ester-C
- **Diet Type:** Gluten Free
- **Flavor:** Citrus
- **Item Form:** Capsule
- **Primary Supplement Type:** Vitamin C

## Images

![Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count - Image 1](https://m.media-amazon.com/images/I/71+HlPE3okL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: The tablets are huge and dry and get stuclk in your throat. Are these capsules or caplets and what is the difference, I want the smooth ones?**
A: These are capsules. The tablets say tablets and are a little less expensive but they are coarse horse pills as you mentioned. The capsules are still big but easier to handle imho.

**Q: Do these have any adjuvants?  Like stéarate etc.**
A: I do not know if Ester-C has adjuvants.  All I do know is that I've been taking this particular brand of Vitamin C for years because it keeps Vertigo at bay because of the bioflavonoids. I have literally taken this product when I had the beginnings of vertigo symptoms and they went away within a few hours!  It helps with drying out and balancing the middle ear.   Also, I have not gotten sick in many years and take this on a daily basis

**Q: Has this product been tested by USP?**
A: I had to look up USP - I don't know. There's nothing I see on the label. I'm pretty rigorous in researching products that I consider buying and this product passes muster with me.

**Q: Is 500 mg tablets smaller than ester-c vitamin c, 1,000 mg tablets?i need a smaller tablets so i need to decide which tablet is smaller.thnx**
A: Yes, I have the same issue with the extremely large 1000 mg tablets in this brand. I typically only take half of them. The capsules are smaller. I am rusty on my capsule sizes--  but they ar definitely smaller and much easier to swallow than the larger strength tablets. They are not the smallest size capsules. I think you will manage them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does not upset the stomach
*by C***A on November 30, 2025*

Gentle on the stomach. Easy to swallow. Great price. I've been using this for years. I finally found another company Amazon that has a reasonably priced product because I use it all the time. I will buy it again and again. I would recommend it to everybody who wants a good vitamin C product

### ⭐⭐⭐⭐⭐ Works well, good quality
*by K***O on December 1, 2025*

My old brand was not available so I tried this Ester C. it does not give me an upset stomach, large capsule but I have no problem. Seems to work well, take it everyday to stay away from cold.

### ⭐⭐⭐⭐⭐ 1000 milligrams vitamin C
*by K***W on January 30, 2026*

They are strong and good quality. They are great all year but especially in the winter. They strengthen your immunities. They helped me get over a cold.

## Frequently Bought Together

- Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count
- NOW Foods Supplements, Vitamin B-100, Energy Production*, Nervous System Health*, 100 Veg Capsules

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*