Best Vitamin C Powder®

Vitamins

Brand: Doctor's Best

PowderVitaminOff Market
Click to view full label

Net Contents

8.8 Oz(s)

Serving Size

0.25 tsp

Servings Per Container

250

Supplement Form

Powder

Bar Code (UPC/SKU)

7 53950 00333 0

Product Version

YDRB333-1

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.

4Dietary Attributes

Label states: Vegan, 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

  • 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: 0.25 tsp · 1–4 per day

IngredientAmount Per Serving% Daily Value
Vitamin C(Quali-C)1000 mg1667%

Not Present

Other Ingredients

None

Target Groups

VeganVegetarianAdult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Adult Use: Take 1/4 teaspoon (approx. 1000 mg) 1 to 4 times daily, preferably without food. Higher intakes may be useful, as recommended by a nutritionally-informed physician.

Storage

Storage

Store in a cool dry place.

Formulation

Formulation re: Does NOT Contain

Non-GMO / Gluten Free

Formulation re: Vegetarian/Vegan

Vegan

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)

Best Vitamin C Powder featuring Quali- C provides ascorbic acid manufactured in Scotland and prized for its quality and reliability.

General Statements: All Other Content

Ascorbic acid is indispensable to the body for its role as an electron donor, supporting numerous enzymes in addition to enhancing the body’s total antioxidant potential.* It is essential for the synthesis of collagen, carnitine, and certain brain chemical transmitters. Clinical research confirms Vitamin C’s fundamental support for the brain, eyes, heart and circulation, immune system, and all the body’s other organ systems.* Helps support the body’s antioxidant defenses* Helps promote healthy immune response* Helps support joints and other connective tissues*

General Statements: All Other Content

Produced in Scotland

Seals/Symbols

Vegan

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

Quali-C is a trademark of DSM.

General: Product/Version Code

YDRB333-1

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

Science-Based Nutrition

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

Featuring Quali-C

Manufacturer & Distributor

Distributor

Doctor's Best, Inc.

San Clemente, CA, 92673

(800) 777-2474

Market Reference

$5.95 – $92.22· 34 listings
  • Doctor's Best 250G Powder

    iHerb4.7(2000)
    $22.99
  • Doctors Best Powder

    eBay - kardiackid216
    $34.92
  • 2 X Doctor's Best, Pure Vitamin C Powder With Q-c, 250

    eBay
    $92.22
  • 1 lb Powder

    Dr. Clark Store4.9(95)
    $34.99
  • Doctor's Best Pure Collagen Peptides With Added Hyaluronic Acid

    iHerb4.7(36)
    $26.99
  • Doctor's Best Pure 250g Antioxidant Powder

    My Dr. XM5.0(5)
    $75.50
  • Vitamin C Powder With Q-c, Healthy Immune System, Brain, Eyes, Heart

    eBay - foxyfind
    $35.95
  • Pure L-Ascorbic Acid Powder

    radiantcrush.com
    $9.00

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.

  • Holland & Barrett - Teesside

    4.2 (71)

    Vitamin & Supplements Shop

    Unit 4D2, Teesside Shopping Park, Sandown Wy., Thornaby, Stockton-on-Tees TS17 7BW

  • The Vitamin Lab

    5.0 (1)

    Vitamin & Supplements Shop

    14 Regency West Mall, Stockton-on-Tees TS18 1EF

  • The Protein Stop

    4.6 (20)

    Vitamin & Supplements Shop

    1a Andrew St, Cleveland Road, Hartlepool TS24 7LB

  • Protein Superstore Middlesbrough

    4.8 (9)

    Vitamin & Supplements Shop

    10B, Captain Cook Square Middlesbrough, Newport Cres, Middlesbrough TS1 5UB

  • Holland & Barrett - Middlesbrough

    3.9 (17)

    Vitamin & Supplements Shop

    Cleveland Centre, 76-78 Linthorpe Rd, Middlesbrough TS1 2LA

  • Reem Supplements Ltd

    Vitamin & Supplements Shop

    242 Marton Rd, Middlesbrough TS4 2EZ

  • Protein Power Ltd

    5.0 (1)

    Health food shop

    106 Russell St, Middlesbrough TS1 2AD

  • Body Extreme

    5.0 (8)

    Health food shop

    13 Newport Cres, Middlesbrough TS1 5EP

Research & Studies

  • A new recommended dietary allowance of vitamin C for healthy young women

    M Levine, Y Wang, SJ Padayatty, J Morrow - Proceedings of the National …, 2001 - pnas.org

    … Pure vitamin C powder was a gift from Takeda Vitamin and Food, Wilmington, NC. Batches prepared for clinical use were routinely assayed for purity and stability, as described (3). …

    2001669 citations
  • Vitamin C for preventing and treating the common cold

    H Hemilä, E Chalker - Cochrane database of systematic …, 2013 - cochranelibrary.com

    … In this way, the placebo group of each trial gets a value of 100%, and therefore the difference between the vitamin C and placebo group is the effect of vitamin C in percentages. …

    20132,017 citations
  • Vitamin C: The real story: The remarkable and controversial healing factor

    S Hickey, AW Saul - 2015 - books.google.com

    … , while good advice, will not provide the benefits of vitamin C … and doctors who study our need for large intakes of vitamin C have been marginalized. For decades, pioneering doctors …

    201557 citations
  • Evaluation of The Pharmaceutical Quality of the Most Commonly Purchased Vitamin C (Ascorbic Acid) Formulations in COVID-19 Infection in South Africa

    JT Chanyandura, NZ Nyazema - J Basic Appl Pharm Sci, 2024 - researchgate.net

    … In the case of the vit C product in capsules, the average weight of the powder of all the three batches was 641.775 mg, 647.22 mg and 657 mg respectively, as shown in Table 4 below. …

    2024
  • Clinical guide to the use of vitamin C

    LH Smith - … ). Claims high doses of vitamin C can cure almost …, 1991 - totalityofevidence.com

    … We all know that Vitamin C is related to glucose and Vitamin C in the … If a healthy individual is given one or two grams of C by … Poison Oak or Ivy: oral Vitamin C plus a paste of C powder …

    199132 citations
  • Market analysis of vitamin C-containing dietary supplements in Germany and the USA: Consumer information and risks and benefits

    J Decke, R Seifert - Naunyn-Schmiedeberg's Archives of Pharmacology, 2025 - Springer

    … link between high doses of vitamin C and adverse effects … vitamin C-containing supplements. To get an accurate picture, this analysis was conducted to examine the market of vitamin C …

    20252 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2016-05-22. DSLD Label ID: 60127. 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.