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
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.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Contains
- Milk
- Wheat
- Soy
- 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 | 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 healthcare professional.
Warnings & Precautions
Precautions re: Children
KEEP OUT OF REACH OF CHILDREN.
Precautions re: All Other
Tamper resistant package, do not use if outer seal is missing.
Storage
Storage
For optimal storage conditions, store in a cool, dry place. (59(0) - 77(0)F/15(0) - 25(0)C) (35-65% relative humidity)
Formulation
Formulation re: Does NOT Contain
This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.
FDA Statements
FDA Statement of Identity
A Dietary Supplement
Other Label Statements
General: Product/Version Code
Formula #7935
Manufacturer & Distributor
Manufacturer
Douglas Laboratories
600 Boyce Road, Pittsburgh, PA, 15205, USA
Other
Market Reference
Douglas Laboratories L-Histidine 60 Capsules
personalpower4.8(6)$27.00Fairvital L-Histidin 500 mg
Narayana - US5.0(2)$26.00BulkSupplements L-Histidine Base Powder
eBay - bulksupplementscs4.7(18)$22.97L-Histidine 500mg Vegan Capsules All Natural Supplement
Etsy - Seller$20.95L-Histidine Base Powder
Jo Mar Labs$147.30Swanson Ajipure L-Histidine 500 mg 60 Capsules
Swanson Health Products4.8(190)$13.39LowestLamberts L-Histidine HCl 500mg 30 Capsules
HealthStuff4.3(9)$15.08Histidine View 60 / 500 Mg
The supplements factory$30.00
Where to Buy Locally
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Showing representative supplement & health retailers — search above for stores in your area.
GNC
4.7 (46)Vitamin & supplements store
803 S State Rd, Davison, MI 48423
Nutrition Works
4.6 (36)Vitamin & supplements store
2815 W Silver Lake Rd, Fenton, MI 48430
Apex Nutrition
4.5 (26)Vitamin & supplements store
19005 Silver Pkwy, Fenton, MI 48430
Rebekah's Health and Nutrition Source Grand Blanc
4.4 (56)Health food store
252 Perry Rd #4, Grand Blanc, MI 48439
Size Up Supplements Lake Orion
4.9 (61)Vitamin & supplements store
3755 S Baldwin Rd, Lake Orion, MI 48359
Nutrient Revolution®
5.0 (4)Vitamin & supplements store
3150 Owen Rd Suite 4, Fenton, MI 48430
Super Simple Supplements
Vitamin & supplements store
2094 S Washburn Rd, Davison, MI 48423
The Vitamin Shoppe
4.6 (112)Vitamin & supplements store
3970 Baldwin Rd, Auburn Hills, MI 48326
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 …
202359 citationsA heretofore undisclosed crux of eosinophilia-myalgia syndrome: compromised histamine degradation
MJ Smith, RH Garrett - Inflammation Research, 2005 - Springer
… pyridoxal 5phosphate (PLP)-dependent L-histidine decarboxylase (HD), an enzyme present in … L-Histidine decarboxylase protein and activity in rat brain microvascular endothelial cells. …
200543 citationsProtein and amino acid nutrition
A Albanese - 2012 - books.google.com
… In three, supplements to their diets were used in the form of 10 mg. and 50 mg. of … of the nitrogen depletion effects of the corticoids can be achieved in part by protein supplementation of …
2012137 citationsImpact of acute tryptophan depletion on mood and eating-related urges in bulimic and nonbulimic women
KR Bruce, H Steiger, SN Young… - Journal of Psychiatry …, 2009 - cdnsciencepub.com
… In the T– mixture, we added 4.58 g of L-alanine, 2.97 g of glycine, 2.67 g of L-histidine, 6.67 g of L-isoleucine, 11.25 g of L-leucine, 9.17 g of L-lysine mono-hydrochloride, 4.75 g of L-…
200938 citationsTolerance to graded dosages of histidine supplementation in healthy human adults
ME Gheller, F Vermeylen, MK Handzlik… - The American Journal of …, 2020 - Elsevier
Background Histidine is an essential amino acid with health benefits that may warrant histidine supplementation; however, the clinical safety of histidine intake above the average …
202018 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-02-23. DSLD Label ID: 5348. 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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