100% Pure L-Cysteine®

Amino Acids & Protein

Brand: NutraBio

PowderAmino acid/ProteinOn Market
Click to view full label

Net Contents

1.1 lbs

Serving Size

1 Gram(s)

Servings Per Container

500

Supplement Form

Powder

Bar Code (UPC/SKU)

6 49908 24261 9

Product Version

24261-005 B20260-001

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.

3Dietary Attributes

Label states: Non-GMO, Gluten-Free, Kosher.

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 Gram(s) · 1–2 per day

IngredientAmount Per Serving
L-Cysteine Hydrochloride1000 mg

Not Present

Other Ingredients

Absolutely None

Target Groups

Adult (18 - 50 Years)KosherNo AllergiesGluten Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

1 serving Mixed with 8-16 oz. Favorite beverage 1-2x daily with food Suggested Use: As a dietary supplement, take 1 serving with your favorite beverage up to 2 times daily between meals, or as directed by your physician. If you experience stomach irritation, take with meals.

Warnings & Precautions

Precautions re: Children

Warning: Not intended for use by persons under the age of 18. Keep out of the reach of children.

Precautions re: Pregnant or Nursing or Prescription Medications

If you are pregnant, breast feeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC medication(s) consult with your health care practitioner before using this product.

Storage

Storage

Store in a cool dry place.

Formulation

Formulation re: Does NOT Contain

Kosher, Hypoallergenic, Non-GMO, Gluten free & BSE/TSE free. No added sugars, salt, preservatives, salicylates, or artificial color, flavor or fragrance.

Formulation re: Does NOT Contain

Allergen Free ~ Non-GMO ~ Gluten Free ~ BSE/TSE Free

Formula re: Contains

Pharmaceutical Free Form Amino Acid

Formulation re: Does NOT Contain

No Fillers ~ No Exipients ~ No Additives

Formula re: Kosher

Kosher, Hypoallergenic, Non-GMO, Gluten free & BSE/TSE free.

Formula re: Type

Kosher, Hypoallergenic, Non-GMO, Gluten free & BSE/TSE free.

Formulation re: Does NOT Contain

Zero fillers or exipients inferior ingredients banned substances added sugars proprietary blends hidden ingredients

FDA Statements

FDA Statement of Identity

Dietary Supplement

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.

Other Label Statements

General Statements: All Other Content

Manufactured in a GMP & FDA inspected facility

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

Amino Therapy

General Statements: All Other Content

Powder 500 Servings

Seals/Symbols

TRUE LABEL FULL LABEL DISCLSOURE

Seals/Symbols

OU

General Statements: All Other Content

Made in a GMP & FDA inspected facility

General Statements: All Other Content

Serving scoop included (may settle to the bottom during shipping.)

Seals/Symbols

Since 1996

General Statements: All Other Content

Quality & purity since 1996. Nutrabio manufactures in our own FDA registered & inspected. GMP facility complying with FDA 21 CFR Part 111 regulations.

General: Product/Version Code

24261-005 B20260-001

Manufacturer & Distributor

Manufacturer

NutraBio Labs, Inc.

564 Lincoln Blvd., Middlesex, NJ , 08846

732-748-8606

Market Reference

$19.99 – $54.99· 7 listings
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  • NutraBio NAC

    Sears - FastMedia4.8(137)
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  • Nutrabio - Base Pre-Workout

    Nutritionlabma4.9(80)
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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 - Sheffield The Moor

    4.6 (34)

    Vitamin & Supplements Shop

    72 The Moor, Sheffield City Centre, Sheffield S1 4PA

  • Supplement Hub

    4.0 (6)

    Vitamin & Supplements Shop

    The Old Chapel, 8 Mortimer St, Sheffield City Centre, Sheffield S1 4SF

  • SILVERBACK PRO SUPPLEMENTS

    5.0 (42)

    Vitamin & Supplements Shop

    3A Clipstone Gardens, Sheffield S9 5EZ

  • Pure Life Supplements Ltd

    5.0 (1)

    Vitamin & Supplements Shop

    314 Hastilar Rd S, Richmond, Sheffield S13 8LE

  • MJG Supplements

    4.6 (58)

    Vitamin & Supplements Shop

    104 Wellington St, Sheffield City Centre, Sheffield S1 4HX

  • NUVIDA NATURAL HEALTH

    3.3 (4)

    Vitamin & Supplements Shop

    205 Outgang Ln, Dinnington, Sheffield S25 3QY

  • Physical Nutrition

    3.6 (27)

    Vitamin & Supplements Shop

    15 Paternoster Row, Sheffield City Centre, Sheffield S1 2BX

  • Holland & Barrett - Meadowhall

    3.5 (39)

    Vitamin & Supplements Shop

    Unit 3 Meadowhall Way, Meadowhall, Sheffield S9 1EH

Research & Studies

  • Cysteine and cystine

    K Anastassakis - … A to Z: Vol. 2 Drugs, Herbs, Nutrition and Supplements, 2022 - Springer

    … This synthetically produced l-cysteine has found limited applications due … medical literature, both in German medical journals, reporting on the effects on human hair of food supplements …

    20225 citations
  • Preventing, treating, and predicting barbering: A fundamental role for biomarkers of oxidative stress in a mouse model of Trichotillomania

    GLT Vieira, AC Lossie, DC Lay Jr, JS Radcliffe… - PLoS …, 2017 - journals.plos.org

    … this effect did not differ between healthy (ie prevention) and … precursor of the amino acid, L-cysteine, which is oxidized to … half of the animals with NAC (Nutrabio, Middlesex, NJ, USA) …

    201737 citations
  • Influence of N-acetylcysteine supplementation on physical performance and laboratory biomarkers in adult males: a systematic review of controlled trials

    D Fernandez-Lazaro, C Dominguez-Ortega… - Nutrients, 2023 - riubu.ubu.es

    … Subsequent studies have therefore been devoted to evaluating its use in the field of physical activity and determining its efficacy as a sports supplement to improve health and …

    202338 citations
  • L-Citrulline metabolism orchestrates anti-mycobacterial immunity

    SM Lange - 2017 - rave.ohiolink.edu

    … Despite the medical and technological discoveries in the 20th century, current vaccines don’t elicit lasting protection and antibiotics are rapidly losing their edge over the infection, …

    2017
  • Safety and efficacy of the feed additives l-cysteine and l-cysteine hydrochloride (monohydrate and anhydrous) for all animal species (Wacker Chemie AG)

    RE Villa, G Azimonti, E Bonos, H Christensen… - EFSA Journal, 2025 - pure.qub.ac.uk

    … access to this research benefits you. – … , L- cysteine was not considered a skin and eye irritant nor a skin sensitiser. The additives L- cysteine hydrochloride anhydrous and L- cysteine …

    2025

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2015-10-22. DSLD Label ID: 51130. 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.