L-Histidine 500 mg®

Amino Acids & Protein

Brand: Douglas Laboratories

CapsuleAmino acid/ProteinOn Market
Click to view full label

Net Contents

60 Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

60

Supplement Form

Capsule

Bar Code (UPC/SKU)

3 10539 00421 0

Product Version

Formula #7935 V3

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.

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 per day

IngredientAmount Per Serving
L-Histidine Hydrochloride500 mg

Not Present

Other Ingredients

Microcrystalline CelluloseGelatinAscorbyl Palmitate

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Usage: As a dietary supplement, adults take 1 capsule daily 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

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Gluten-free, Non-GMO

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

$12.95 – $126.92· 8 listings
  • L-Histidine 500mg

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  • L-Histidine HCL 500mg Vegan Capsules All Natural Supplement

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  • Fairvital L-Histidin 500 mg

    Narayana - US5.0(2)
    $26.00
  • BulkSupplements L-Histidine Capsules

    Walmart - BulkSupplements.com4.6(19)
    $19.97
  • Lamberts L-Histidine HCl 500mg 30 Capsules

    HealthStuff4.2(8)
    $12.95Lowest
  • Histidine View 60 / 500 Mg

    The supplements factory
    $30.00
  • L Histidine Hcl Powder Support Muscle Recovery & Improve Gut Health

    eBay - blackstonexim
    $126.92
  • Lamberts L Histidine HCI 500mg

    eBay - 1thetreehouse4.7(3)
    $44.06

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.

  • RightNutri

    4.9 (78)

    Vitamin & Supplements Shop

    26 Queenstown Rd, London SW8 3RX

  • Altruvita

    Vitamin & Supplements Shop

    2 Harley St, London W1G 9PA

  • Indi Supplements

    4.3 (12)

    Vitamin & Supplements Shop

    27 Old Gloucester St, London WC1N 3AF

  • Nutri Tailor

    5.0 (13)

    Vitamin & Supplements Shop

    85 Great Portland St, London W1W 7LT

  • Planetis Natural Health & Nutrition

    5.0 (38)

    Vitamin & Supplements Shop

    32 Clifton Rd, London W9 1ST

  • for the Ageless

    5.0 (69)

    E-commerce service

    12 John Prince's St, London W1G 0JR

  • The Intelligent Health - Health Supplements UK

    Vitamin & Supplements Shop

    34 S Molton St, London W1K 5RG

  • Power Up Supplement

    4.9 (431)

    Vitamin & Supplements Shop

    601 Lea Bridge Rd, London E10 6AJ

Research & Studies

  • Kinetic–spectrophotometric approach to the ampicillin hydrolytic degradation applied for the histidine determination

    IDR Mišić, SB Tošić… - Facta Universitatis …, 2022 - casopisi.junis.ni.ac.rs

    … of L-histidine as a dietary supplement (Douglas laboratories, … (500 mg of L-histidine), was transferred into the 500 mL … Excipients present in the capsules were magnesium stearate …

    2022
  • Potential therapeutic implications of histidine catabolism by the gut microbiota in NAFLD patients with morbid obesity

    S Quesada-Vázquez, A Castells-Nobau, J Latorre… - Cell Reports …, 2023 - cell.com

    … (K and L) Boxplots represent the amount of L-histidine per gram of tissue, measured either by 1 H NMR (K) or an ELISA kit (L) of sterile flies or flies mono-colonized with E. cloacae and …

    202362 citations
  • L-Histidine 500 mg 60 caps by Douglas Labs

    RNR Points

  • Clinacal trial of an improved rice-based ors (ceralyte-90) supplemented with an amino acid (L-Histidine) in cholera

    GH Rabbani - 1999 - dspace.icddrb.org

    … cholera, we hypothesize that L-Histidine. when … L-Histidine to the standard treatment with ORS and antibiotics in cholera, would further improves its efficacy. Background: L-Histidine is …

    1999
  • Engineering the Yeast Saccharomyces cerevisiae for the Production of L-(+)-Ergothioneine

    SA Van der Hoek, B Darbani, KE Zugaj… - … in bioengineering and …, 2019 - frontiersin.org

    … is synthesized from one molecule of L-histidine (1), one … individual reactions that methylate L-histidine to form hercynine (… enzyme Egt1 catalyzes the methylation of L-histidine (1) to give …

    2019103 citations
  • Determination of free arginine, glutamine, and β-alanine in nutritional products and dietary supplements

    JH Baxter, PW Johns - Food Analytical Methods, 2012 - Springer

    … , medical foods, dietary supplements, and topical applications. The primary basis for supplementing … of muscle carnosine (β-alanyl-L-histidine) concentrations; however, neurological …

    201222 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-08-23. DSLD Label ID: 232444. 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.