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.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
1 ingredients report a %DV; 1 meet or exceed 100% DV.
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
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(Quali-C) | 1000 mg | 1667% |
Not Present
Other Ingredients
Target Groups
Label Claims
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
Doctor's Best 250G Powder
iHerb4.7(2000)$22.99Doctors Best Powder
eBay - kardiackid216$34.922 X Doctor's Best, Pure Vitamin C Powder With Q-c, 250
eBay$92.221 lb Powder
Dr. Clark Store4.9(95)$34.99Doctor's Best Pure Collagen Peptides With Added Hyaluronic Acid
iHerb4.7(36)$26.99Doctor's Best Pure 250g Antioxidant Powder
My Dr. XM5.0(5)$75.50Vitamin C Powder With Q-c, Healthy Immune System, Brain, Eyes, Heart
eBay - foxyfind$35.95Pure 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 citationsVitamin 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 citationsVitamin 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 citationsEvaluation 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. …
2024Clinical 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 citationsMarket 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.
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