Ester-C 24 Hour Immune Supportnone
Other CombinationsBrand: NatureSmart
Functions
Net Contents
60 Vegetarian Coated Tablet(s)
Serving Size
1 Tablet(s)
Servings Per Container
30
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
Not specified
Product Version
Not Present
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
3 distinct active ingredients are disclosed in Supplement Facts.
Label includes a proprietary blend, so some individual amounts are not itemized.
2 ingredients report a %DV; 1 meet or exceed 100% DV.
Label states: Vegetarian, Non-GMO, Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Milk
- Fish
- Wheat
- Soy
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Tablet(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(Ester-C Calcium Ascorbate) | 1000 mg | 1667% |
| Calcium(Ester-C Calcium Ascorbate) | 110 mg | 11% |
| C-Sorb Citrus Bioflavonoid Complex | 102 mg | — |
| Citrus Bioflavonoid Complex(Citrus spp.) | — | — |
| sweet Orange | — | — |
| Tangerine | — | — |
| Lime | — | — |
| Lemon | — | — |
| Acerola extract | — | — |
| Rutin | — | — |
| Hesperidin Complex(Citrus spp.) | — | — |
| naturally occurring Vitamin C Metabolites | — | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Directions: For adults, take one (2) tablets once daily, preferably with a meal.
Suggested/Recommended/Usage/Directions
2 per day
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Precautions re: All Other
Discontinue use and consult your doctor if any adverse reactions occur.
Precautions re: Children
Keep out of reach of children.
Precautions re: All Other
Do not use if seal under cap is broken or missing.
Storage
Storage
Store at room temperature.
Formulation
Formulation re: Does NOT Contain
Non-GMO. No gluten, no wheat, no milk, no lactose, no artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no soy, no yeast, no fish. Sodium free.
Formulation re: Vegetarian/Vegan
Suitable for Vegetarians.
Formulation re: Other
Patented immune health formula
Formulation re: Does NOT Contain
Plus, Ester-C is manufactured without chemicals to neutralize pH, which means it’s non-acidic and gentle on your stomach.
Formulation re: Other
Patented Ester-C delivers 24-hour immune and antioxidant support...so one serving a day is all you need.
Formulation re: Other
Clinically studied to last longer than regular Vitamin C
Formulation re: Other
Ester-C lasts longer than regular Vitamin C and supports your immune system for 24 hours!
Formulation re: Other
Enjoy the benefits of Ester-C every day! Patented 24 hour immune support Clinically studied to stay in the immune system longer than regular vitamin C Non-acidic and gentler on your stomach than regular Vitamin C
FDA Statements
FDA Disclaimer Statement
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.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
Brand IP Statement(s) re: (c), (TM), (SM)
Copyright 2016 NatureSmart, LLC
Seals/Symbols
Made in the USA with select ingredients from around the world
General Statements: All Other Content
Ester-C is the patented immune health formula that stays in your system for 24 hours – so you have the kind of support you can count on 24/7. Ester-C is carefully formulated to contain naturally occurring metabolites. Metabolites are substance derived from other compounds (such as nutrients) during the process of metabolism. The metabolites in Ester-C help enhance the retention of Vitamin C by your white blood cells, which are a vital component of your immune system. So once you take your daily dose of Ester-C, it gets into your white blood cells, and stays there – for up to 24 hours, clinically studied to last longer than regular Vitamin C.
General Statements: All Other Content
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
Brand IP Statement(s) re: (c), (TM), (SM)
Ester-C and Ester-C are registered trademarks of The Ester C Company. U.S. Patent Nos. 6,878,744 and 6,197,813.
General Statements: All Other Content
Stomach friendly!
General Statements: All Other Content
Not all Vitamin C is created equal...There is only one patented Ester-C formula
General Statements: All Other Content
Call toll free 1-866-417-0739 with questions or comments, Mon.-Sat., 9am-7pm EST.
Manufacturer & Distributor
Manufacturer
NatureSmart, LLC
Bohemia, NY, 11716, USA
1-866-417-0739
Market Reference
Ester C Vitamin C
Walmart4.8(517)$6.97LowestEster-C 1000mg Tablets 60 Count
Target4.7(158)$15.99Nature's Bounty 1000mg Ester-C Softgels
Walmart4.5(2100)$10.00Ester-C 24 X 90 Tabs Tablets
Theatre Pharmacy4.8(481)$11.69AMERICAN HEALTH Ester-C 500 mg 120 Capsules
Vitacost.com4.9(2000)$13.29Ester-c 1,000 mg Coated Tablets
Walmart - Wisermerchant4.8(155)$14.35Nature's Bounty Softgels
eBay4.9(477)$24.00American Health Ester-C Immune Support, 24 Hour, 500 mg, Vegetarian Coated Tablets
Instacart$9.09
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Planet Supplements Charlotte
4.9 (277)Vitamin & supplements store
8538 University City Blvd, Charlotte, NC 28213
NutriShop The Arboretum Charlotte NC
4.9 (258)Vitamin & supplements store
3339 Pineville-Matthews Rd, Charlotte, NC 28226
The Vitamin Shoppe
4.4 (106)Vitamin & supplements store
8046 Concord Mills Boulevard, Concord, NC 28027
VITASMART
4.8 (57)Vitamin & supplements store
5303 Poplar Tent Rd #120, Concord, NC 28027
Charlotte Supplements
4.7 (270)Vitamin & supplements store
4128 South Blvd, Charlotte, NC 28209
GNC
3.2 (66)Vitamin & supplements store
2728 W Mallard Creek Church Rd B, Charlotte, NC 28262
GNC
3.4 (64)Vitamin & supplements store
5700 University Pointe Blvd #107, Charlotte, NC 28262
The Vitamin Shoppe
4.5 (199)Vitamin & supplements store
243 S Kings Dr, Charlotte, NC 28204
Research & Studies
Enhanced Vitamin C delivery: A systematic literature review assessing the efficacy and safety of alternative supplement forms in healthy adults
PC Calder, RB Kreider, DL McKay - Nutrients, 2025 - mdpi.com
… oral supplemental forms of vitamin C alternative to conventional ascorbic acid include Ester C ® , … vitamin C concentrations 24 h post-dosing supports the understanding that vitamin C …
202520 citationsSelect dietary supplement ingredients for preserving and protecting the immune system in healthy individuals: A systematic review
C Crawford, LVL Brown, RB Costello, PA Deuster - Nutrients, 2022 - mdpi.com
… included in this review were conducted during the peak of cold season, throughout the winter months, up to 90 days in duration where participants were asked to take 1g/day of Ester-C …
202241 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-09-22. DSLD Label ID: 277268. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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