Ester-C & Flavonoids®

Other Combinations

Brand: Pure Encapsulations

CapsuleOther CombinationsOff Market

Product label for Ester-C & Flavonoids — Click to view full label

Net Contents

180 Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

180

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 66298 01778 5

Product Version

code: ECF21 v3

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

5Active Ingredients

5 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report a %DV; 1 meet or exceed 100% DV.

2Dietary Attributes

Label states: 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

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 Capsule(s) · 1–2 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin C(Calcium Ascorbate Blend)	619 mg	688%
Calcium(Calcium Ascorbate)	68 mg	6%
Threonic Acid(Calcium Ascorbate Blend)	7 mg	—
Quercetin	50 mg	—
Rutin	100 mg	—

Not Present

Other Ingredients

Vegetarian CapsuleAscorbyl Palmitate

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Recommendations: As a dietary supplement, take 1 capsule, 1-2 times daily, with or between meals.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.

Precautions re: Children

Keep out of the reach of children.

Precautions re: All Other

Use only if safety seal is intact.

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Certified Gluten-free by the Gluten-free Certification Organization, www.gluten.org

Formula re: Contains

Unique vitamin C enhanced with bioflavonoids: Antioxidant, immune, and vascular support

Formulation re: Does NOT Contain

Gluten-free, Non-GMO & Hypoallergenic

Formulation re: Other

Gluten-free, Non-GMO & Hypoallergenic

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Other Label Statements

General Statements: All Other Content

Scan to learn about our hypoallergenic supplements

General Statements: All Other Content

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.

Seals/Symbols

Brand IP Statement(s) re: (c), (TM), (SM)

Ester-C and Ester-C are trademarks of The Ester C Company. US Patent Nos. 6,878,744 and 6,197,813, and other international patents.

General: Product/Version Code

v3 code: ECF21

Manufacturer & Distributor

Manufacturer

Pure Encapsulations

490 Boston Post Road, Sudbury, MA

1-800-753-2277

Market Reference

$8.04 – $129.00· 40 listings

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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.

Nutriburst
4.6 (30)
Manufacturer
8 Waterloo Pl, London SW1Y 4BN
Directions 020 3943 8201
ITL Health
5.0 (37)
Vitamin & Supplements Shop
50 Broadway, London SW1H 0BL
Directions 0118 321 7628
Minerva Wellness
5.0 (21)
Vitamin & Supplements Shop
71-75 Shelton St, London WC2H 9JQ
Directions 020 7459 4641
Prodentim
5.0 (1)
Vitamin & Supplements Shop
72 Regent St., London W1B 4EN
Directions 028 6745 7567
Nutrapad Ltd –Pharmacy-friendly, Hydration, Immunity & Wellness Support - oxford street
5.0 (4)
Vitamin & Supplements Shop
41 Bloomsbury Way, London WC1A 2SA
Directions 07904 096549
Aphro-D
4.9 (82)
Vitamin & Supplements Shop
27 Old Gloucester St, London WC1N 3AF
Directions +1 224-241-7531
Protiv Nutrition
5.0 (1)
Vitamin & Supplements Shop
3rd Floor, 207 Regent St., London W1B 3HH
Directions 07442 915758
RightNutri
4.9 (78)
Vitamin & Supplements Shop
26 Queenstown Rd, London SW8 3RX
Directions 0800 098 8888

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
… Commercially available oral supplemental forms of vitamin C alternative to conventional ascorbic acid include Ester C ® , which is a combination of calcium ascorbate and vitamin C …
202520 citations
Encapsulating Calendula arvensis (Vaill.) L. Florets: UHPLC-HRMS Insights into Bioactive Compounds Preservation and Oral Bioaccessibility
M Fiorentino, S Piccolella, C Gravina, A Stinca… - Molecules, 2022 - mdpi.com
… of famine or for health purposes, today … ester C=O groups. In the FE-MD spectrum the decrease and broadening of these peaks (labeled by green arrows) highlighted the encapsulation …
202214 citations
Enhanced Renoprotective Effects of Morin-Loaded PLGA Nanoparticles Against Arsenic-Induced Kidney Injury in Rats: Amelioration of Oxidative Stress …
AS Aldaghmi, EM Elmorsy, F Alshammari, A Duhduh… - Pharmaceuticals, 2026 - mdpi.com
… The ester C=O peak of PLGA remained at 1755 cm −1 , whereas the morin C=O band at 1660 cm −1 showed a slight shift, suggesting weak non-covalent interactions with PLGA without …
2026
Liposome-based encapsulation of extract from wild thyme (Thymus serpyllum L.) tea processing residues for delivery of polyphenols
AA Jovanović, B Balanč, PM Petrović, N Čutović… - Foods, 2025 - technorep.tmf.bg.ac.rs
… are attributed to the stretching vibrations of ester C=O groups and overlapping O–H deformation with C=C stretching in unsaturated fatty acid residues, respectively. Vibrational bands in …
202510 citations
Development of polymeric guar gum-coated nano-nutriosomes for improved stability, controlled release, and cellular uptake for neohesperidin encapsulation
B Paul, L Xie, AK Rashwan, ZO Yahia, Q Liu… - International Journal of …, 2026 - Elsevier
… The strong absorption peak near 1740 cm −1 represents ester C double bond O stretching, implying a lipid-based structure of NS, whereas the 1648–1645 cm −1 region corresponds to …
2026
Exploring antibacterial ethyl cinnamate/cyclodextrin inclusion complex electrospun nanofibers
S Siva, V Meenatchi, GA Bodkhe, M Kim - Journal of Molecular Liquids, 2025 - Elsevier
Ethyl cinnamate (EC), a natural ester from Cinnamomum essential oils, possesses excellent biological activities but faces challenges in bioavailability owing to poor water solubility. …
202511 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-01-07. DSLD Label ID: 184405. 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.