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100% Pure L-Histidine

product on market Powder NutraBio Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-Histidine Hydrochloride provides the essential amino acid histidine, which is necessary for protein synthesis and the production of histamine. Research evidence supporting its use as a standalone supplement for general health is limited. This ingredient is generally recognized as safe for consumption.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for 100% Pure L-Histidine
Open Full PDF View on NIH DSLD →
Details

Label Data

0.5 Gram(s)
Serving Size
1000
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)

Other Ingredients

Absolutely None
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

1-2 servings Mixed with 8-16 oz. Favorite Beverage 1-2x daily between meals Suggested Use: As a dietary supplement, take 1-2 servings up to two times daily between meals, or as directed by your physician.

Warnings & Precautions

Warning: NOT INTENDED FOR USE BY PERSONS UNDER THE AGE OF 18. KEEP OUT OF THE REACH OF CHILDREN.

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.

There are no reported side effects with L-Histidine, but overly high levels of it may lead to stress and mental disorders such as anxiety. People with schizophrenia have been found to have high levels of L-Histidine.

People suffering from schizophrenia or bipolar (manic) depression should not take an L-Histidine supplement without the approval of their medical professional.

Formulation Notes

ALLERGEN FREE

ALLERGEN FREE ~ NON-GMO ~ GLUTEN FREE ~ BSE/TSE FREE

ZERO Fillers or Excipients Inferior ingredients Banned substances Added sugars Proprietary Blends Hidden ingredients

No fillers No excipients No additives

Free of Harmful Impurities.

Kosher, Hypoallergenic, Non-GMO, Gluten Free and BSE/TSE Free.

Kosher, Hypoallergenic, Non-GMO, Gluten Free and BSE/TSE Free.

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

Additional Information

Manufactured in a GMP & FDA inspected facility

Made in a GMP & FDA inspected facility

Free Form Amino Acid

Pharmaceutical Grade. HPLC Lab Tested for Potency.

Powder

1000 servings

TRUE LABEL FULL LABEL DISCLOSURE

OU

STORE IN A COOL DRY PLACE.

SERVING SCOOP INCLUDED (MAY SETTLE TO THE BOTTOM DURING SHIPPING.)

Since 1996

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

24221-007 B20213-002

Metadata

Product Details

UPC / SKU6 49908 24221 3
DSLD Entry Date2015-10-22
Product TypeAmino acid/Protein
FormPowder
DSLD ID51065
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
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Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
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Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.