Buffered C Powder®

Other Combinations

Brand: Thorne

PowderOther CombinationsOn Market
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Net Contents

8.47 Ounce(s)

Serving Size

5.7 Gram(s)

Servings Per Container

42

Supplement Form

Powder

Bar Code (UPC/SKU)

6 93749 15502 7

Product Version

C155 LC15518

Label Analysis

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

4Active Ingredients

4 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

4% Daily Value Coverage

4 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: 5.7 Gram(s) · 1 per day

IngredientAmount Per Serving% Daily Value
Vitamin C(Ascorbic Acid)2.35 Gram(s)2611%
Calcium(Ascorbic Acid, Calcium Ascorbate)350 mg27%
Magnesium(Magnesium Ascorbate)350 mg83%
Potassium(Potassium Ascorbate)99 mg2%

Not Present

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: Mix 1 scoop with at least 8 ounces of water daily or as recommended by your health-care practitioner.

Warnings & Precautions

Precautions re: All Other

Tamper evident: Use only if bottle is sealed.

Precautions re: Pregnant or Nursing or Prescription Medications

If pregnant, consult your health-care practitioner before using this product.

Storage

Storage

Store tightly sealed in a cool, dry place.

Formulation

Formulation re: Other

Foundational Immune support

Formulation re: Does NOT Contain

Gluten free

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

Seals/Symbols

Manufactured in the USA using US & imported ingredients NSF Contents Certified

General Statements: All Other Content

Daily Value (DV)

Manufacturer & Distributor

Manufacturer

Thorne Research, Inc.

1-800-228-1966

Market Reference

$29.00 – $73.50· 14 listings
  • Thorne Buffered C Powder

    Village Green Apothecary4.6(366)
    $29.00Lowest
  • Thorne Buffered Vitamin C Powder

    Village Vitamin Store4.6(366)
    $29.97
  • Buffered C Powder

    ThorneVet4.6(366)
    $29.00Lowest
  • Thorne Vitamin C

    Life Science Pharmacy
    $29.00Lowest
  • Multi-Element Buffered C Powder

    SFI Health
    $45.99
  • Buffered C Powder - Vitamin C that's buffered, so it's easier on the stomach*

    THOR - The House of Rose4.6(366)
    $29.00Lowest
  • Multi-Element Buffered C Pwd

    Pure Prescriptions
    $45.99
  • Buffered Lemon C Powder - 50 Servings

    Oakway Naturals5.0(6)
    $48.90

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.

  • The Vitamin Shoppe

    4.4 (99)

    Vitamin & supplements store

    455 Central Ave, White Plains, NY 10606

  • GNC

    4.0 (38)

    Vitamin & supplements store

    409 Tarrytown Rd Rt 119, White Plains, NY 10607

  • Green Vitamin Store

    5.0 (9)

    Vitamin & supplements store

    265 S Central Ave, Hartsdale, NY 10530

  • Elevate Nutrition

    4.4 (7)

    Sports nutrition store

    777 Westchester Ave Suit 101, White Plains, NY 10604

  • Tommy K's Wholesale Peptides &Supplements

    4.9 (41)

    Vitamin & supplements store

    192 E Boston Post Rd, Mamaroneck, NY 10543

  • Helite Supplements

    Vitamin & supplements store

    135 Old Lyme Rd, Purchase, NY 10577

  • Foundation Vitamins & Sports Supplements

    Vitamin & supplements store

    4 Westchester Park Dr, White Plains, NY 10604

  • The Vitamin Shoppe

    4.6 (118)

    Vitamin & supplements store

    2363 Central Park Ave, Yonkers, NY 10710

Research & Studies

  • Pharmaceutical versus over-the-counter potassium citrate: a benchtop comparison

    DG Wong, L Elson, CU Nottingham, AC Desai - Urology Practice, 2022 - auajournals.org

    … This was only matched by 1 supplement, Thorne. We believe pharmaceutical potassium … the use of OTC supplements for kidney stone prevention and medical therapy has not been …

    20225 citations
  • High-sensitivity colorimetric sensor based on oxidase-like Mn3O4 nanozyme for Cys detection

    …, J Li, M Wang, Z Chang, RF Thorne, C Chen… - Sensors and Actuators …, 2025 - Elsevier

    Cysteine (Cys) is essential for numerous physiological processes and play a vital role in disease diagnostics, underscoring the necessity for effective and sensitive detection techniques …

    202519 citations
  • The change in nasal inflammatory markers after intranasal challenges with particulate chitin and lipopolysaccharide: a randomized, double‐blind, placebo‐controlled …

    T Sigsgaard, PS Thorne, V Schlünssen… - International forum of …, 2015 - Wiley Online Library

    … This study also shows that CP is well tolerated in healthy volunteers, and that does not induce significantly more symptoms compared to placebo. In fact there is a tendency for CP …

    201513 citations
  • Pulmonary drug absorption and systemic exposure in human: predictions using physiologically based biopharmaceutics modeling

    J Eriksson, H Thörn, H Lennernäs, E Sjögren - European Journal of …, 2020 - Elsevier

    Systemic exposure of inhaled drugs is used to estimate the local lung exposure and assess systemic side effects for drugs with local pharmacological targets. Predicting systemic …

    202031 citations
  • Entitlement failure from a food quality perspective: the life and death role of vitamins and minerals in humanitarian crises

    P Webb, A Thorne-Lyman - Food Insecurity, Vulnerability and Human …, 2007 - Springer

    … questions about meeting (enforcing and/or fulfilling) entitlements of hungry people not only to adequate food, but to an appropriate basket of foods to meet nutrition and health require…

    200718 citations
  • Inactivation of severe acute respiratory coronavirus virus 2 (SARS-CoV-2) and diverse RNA and DNA viruses on three-dimensionally printed surgical mask materials

    …, J Xiang, SR Mackin, S Perlman, P Thorne… - Infection Control & …, 2021 - cambridge.org

    … to heat (50C, and 70C) were tested on four 3D-printed materials used in the healthcare setting, including a surgical mask design developed by the Veterans’ Health Administration. …

    202131 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-09-25. DSLD Label ID: 337854. 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.