L-Histidine 500 mg®
Amino Acids & ProteinBrand: Douglas Laboratories
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.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
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
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Histidine Hydrochloride | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
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
L-Histidine 500mg
personalpower4.8(6)$27.00L-Histidine HCL 500mg Vegan Capsules All Natural Supplement
Etsy - Seller$17.21Fairvital L-Histidin 500 mg
Narayana - US5.0(2)$26.00BulkSupplements L-Histidine Capsules
Walmart - BulkSupplements.com4.6(19)$19.97Lamberts L-Histidine HCl 500mg 30 Capsules
HealthStuff4.2(8)$12.95LowestHistidine View 60 / 500 Mg
The supplements factory$30.00L Histidine Hcl Powder Support Muscle Recovery & Improve Gut Health
eBay - blackstonexim$126.92Lamberts 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 …
2022Potential 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 citationsL-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 …
1999Engineering 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 citationsDetermination 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.
Related Products

100% Beef Aminos
Universal

100% Beef Aminos
Universal

100% Beef Aminos
Universal

100% Beef Aminos
Universal