Sustained Release C-500 (Ascorbic Acid)®

Vitamins

Brand: Windmill Natural Vitamins

Tablet or PillVitaminOn Market

Functions

Immune Support

Product label for Sustained Release C-500 (Ascorbic Acid) — Click to view full label

Net Contents

60 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Not specified

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 35046 00197 1

Product Version

ITEM: 197

Label Analysis

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

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

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

1Dietary Attributes

Label states: 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 Tablet(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin C(Ascorbic Acid)	500 mg	556%

Not Present

Other Ingredients

Microcrystalline CelluloseHydroxypropyl Methyl CelluloseStearic AcidSilicon DioxideMagnesium StearateVegetable CoatingPolyethylene Glycol

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: Take 1 tablet daily as a dietary supplement or as directed by a healthcare professional.

Warnings & Precautions

Precautions re: Children

Keep out of reach of children.

Precautions re: All Other

Do not purchase if seal is broken.

Storage

Protect from heat, light & moisture. Store in a cool, dry place.

Formulation

Formulation re: Other

Made in the U.S.A. from globally sourced ingredients.

Formulation re: Other

Immune system support Antioxidant support

Formulation re: Does NOT Contain

No yeast, wheat, milk, soy, artificial colors, flavors or preservatives Gluten Free

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)

Trusted since 1972 Windmill Natural Vitamins

General Statements: All Other Content

Pharmacist Recommended

Manufacturer & Distributor

Distributor

Windmill Health Products

10 Henderson Drive, West Caldwell, NJ, 07006

Market Reference

$4.25 – $131.70· 40 listings

Windmill Tablets C-500 Natural Source 100 Tablets
Wellnessbetter.com5.0(4)
$7.73
Windmill Health Tablets 500mg Sustained Release 60 Count
Med-Vet International
$7.90
Vita-C Sustained Release 500mg
Shaklee
$25.50
Windmill Chewable Wafers
Hargraves Online Healthcare5.0(1)
$10.99
Windmill Vitamin C-500 Tablets Natural Source 100 Tablets
Walmart - Wisermerchant5.0(4)
$12.39
Windmill Health Non-Acid Tablet 500mg 60 Tab
Wellnessbetter.com5.0(2)
$9.28
Windmill Sustained Release C-1000 Tablets
Target5.0(3)
$15.60
Windmill Rose Hips Tablets
Walmart - Pharma Frills
$19.78

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.

Supplement Superstore
5.0 (610)
Vitamin & supplements store
1922 Missouri Blvd Ste A, Jefferson City, MO 65109
Directions (573) 635-9155
Capital Supplements
5.0 (19)
Vitamin & supplements store
829 Eastland Dr, Jefferson City, MO 65101
Directions (636) 352-3071
The Vitamin Shoppe
4.5 (95)
Vitamin & supplements store
9 W 62 Terrace, Kansas City, MO 64113
Directions (816) 363-1223

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
… forms over ascorbic acid or placebo; one reported higher serum vitamin C levels with … sustained release over a 12 h period, such as the novel sustained-release L ascorbic acid (…
202516 citations
VITAMIN C: OVERVIEW OF DRUGS AND DIETARY SUPPLEMENTS AND ANALYTICAL METHODS FOR DETERMINING ITS CONTENT.
S KRUKOWSKI, J BIAŁY… - Acta Poloniae …, 2024 - search.ebscohost.com
… of L(+)-ascorbic acid (Figure 1A), or for short: ascorbic acid. This group also includes the … presence of extendedrelease forms is important in the case of high doses of ascorbic acid, due …
2024
Examining the interactive nature of cytochrome P450 3A4 and P-glycoprotein in intestinal drug metabolism
CL Cummins - 2002 - search.proquest.com
… , peptide, and amino acid transporters all abound in the intestine. Vitamin transporters (vitamin C and vitamin Bt2) and bile acid transporters (ileal bile acid transporter) play important …
2002
Dietary supplement intake and its relationship to the occurrence of cancer and hypertension in a cohort of University of North Carolina alumni
KF Debrot - 1996 - search.proquest.com
… In males univariate analysis of vitamin intake and disease outcome were significant only for … with age and vitamin C intake and hypertension was associated with supplement use, …
1996
" Our Problems Are Strength, Not Our Weakness
NO Strength - Reporter, 1980 - repository.rit.edu
… For quite some time now we've been plagued with drop-out cops whowould rather participate in cop and robber type chases instead of really making an effort to help students. …
1980
Le Pinacle, Jersey: a reassessment of the Neolithic, Chalcolithic and Bronze-Age horizons
M Patton, AP Middleton, S Browne… - Archaeological …, 2001 - Taylor & Francis
… the range for neolithic domestic pigs from Windmill Hill (]ope and Grigson … naturally on the site, or perhaps amongst materials gathered for fuel. However, rose-hips are rich in Vitamin C …
200111 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-07-23. DSLD Label ID: 231406. 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.