C-1000®

Vitamins

Brand: Douglas Laboratories

CapsuleVitaminOn Market

Functions

Immune Support

Product label for C-1000 — Click to view full label

Net Contents

100 Vegetarian Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

100

Supplement Form

Capsule

Bar Code (UPC/SKU)

3 10539 98027 9

Product Version

Formula #202744 V1

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.

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) · 1–4 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin C	1000 mg	1111%

Not Present

Other Ingredients

Hydroxypropyl MethylcelluloseAscorbyl Palmitate

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Usage: As a dietary supplement, adults take 1 capsule, 1-4 times daily with food or as directed by your health professional.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.

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

Gluten-free, Non-GMO

Formula re: Contains

Vitamin C

Formulation re: Other

Antioxidant support

FDA Statements

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.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

General Statements: All Other Content

Scan to learn about our manufacturing excellence Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity.

Manufacturer & Distributor

Manufacturer

Douglas Laboratories

600 Boyce Road, Pittsburgh, PA, 15205

1.800.245.4440

Market Reference

$6.99 – $14356.02· 40 listings

C-1000 Douglas Laboratories
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$47.00
Douglas Laboratories 1000 mg Tablets
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$19.50
Douglas Laboratories C-1000 100% Pure 100% Pure Vitamin C
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$19.50
Douglas Laboratories Natural C 1000 mg
boulevardcompounding.com4.6(38)
$44.99
Douglas Laboratories High Potency Tablets
Walsh Natural Health4.5(4)
$18.60
Douglas Labs Vitamin C – Immune & Antioxidant Defense Support
Integrated Health Products4.7(139)
$19.50
Douglas Laboratories Douglas Ascorbplex 1000
Supplement First4.9(12)
$53.50
Vitamin C 1000 mg
Walmart - Holly Hill Health Foods5.0(2)
$19.95

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.

Musclesupplement | Fitness Shop Dortmund City
4.8 (131)
Vitamin & supplements store
Brückstraße 20-26, 44135 Dortmund
Directions 0231 8627537
Supplements - Dortmund Sportnahrung Fitness und Bodybuilding Shop
4.5 (21)
Vitamin & supplements store
Lange Str. 54, 44137 Dortmund-Innenstadt-West
Directions 0231 8629693
Vitanow Supplements
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Clarenberg 1, 44263 Dortmund
Directions 0176 30346522
TQ THiNQ - smart protein ice-tea
4.9 (35)
Sports nutrition store
Kirchhörder Str. 29, 44229 Hombruch
Directions 02434 4334

Research & Studies

Chronic Fatigue Syndrome Nutritional Supplementation Helps Reduce the Symptoms & Progression of Chronic Fatigue Syndrome
LR McNamara - drladdvip.com
… disclaimer after the article, and consult your personal health care provider prior to acting … -L-Carnitine and DHEA from Douglas Labs. You can buy from Douglas Labs by first creating a …
C-1000 1000 mg 100 caps by Douglas Labs
RNR Points
A high vitamin C micronutrient supplement is unable to attenuate inflammation in people with metabolic syndrome but may improve metabolic health indices …
E Vlasiuk, M Zawari, R Whitehead, J Williman, AC Carr - Antioxidants, 2024 - mdpi.com
… The mechanisms of action for these metabolic health improvements are currently uncertain as we were not able to demonstrate an overall effect of the micronutrient formula on systemic …
202416 citations
Integrative Approaches to Prostate Health
P Trouble - researchgate.net
… The health axis points up with increasing health representing increasing longevity. In … conventional and complimentary methods to increase health and decrease the disease resulting in …
International Society of Sports Nutrition position stand: effects of dietary antioxidants on exercise and sports performance
DE Gonzalez, BL Dickerson, BM Roberts… - Journal of the …, 2026 - Taylor & Francis
… There are likely many reasons (eg health and/or performance) for an individual to supplement with an antioxidant. Nevertheless, individuals must consider whether they may be …
20266 citations
A pilot of a randomized control trial of melatonin and vitamin C for mild-to-moderate COVID-19
C Fogleman, D Cohen, A Mercier, D Farrell… - The Journal of the …, 2022 - jabfm.org
… Participants taking vitamin C 1000 mg once daily had similar regression patterns to those … C 1000 mg once daily versus placebo and to model disease trajectory. While vitamin C 1000 …
202235 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-07-21. DSLD Label ID: 274149. 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.