Pure L-Glutamine Free Form Powder®
Amino Acids & ProteinBrand: Precision Engineered
Net Contents
14.1 oz.
Serving Size
4.5 Gram(s)
Servings Per Container
89
Supplement Form
Powder
Bar Code (UPC/SKU)
7 66443 67813 7
Product Version
Prod. # 67813 B67808 01A
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegetarian, 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
- Milk
- Fish
- 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: 4.5 Gram(s) · 1–2 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| Calories | 20 {Calories} | — |
| L-Glutamine | 4500 mg | — |
Not Present
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
DIRECTIONS: For adults, mix one (1) heaping teaspoon (4.5 g) into 4-8 ounces of water or your favorite beverage one to two times daily. Stir or mix in your Precision Engineered(R) shaker and drink one hour before a workout.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Precautions re: All Other
Discontinue use and consult your doctor if any adverse reactions occur.
Precautions re: All Other
Do not use if seal under cap is broken or missing.
Precautions re: Children
Not intended for use by persons under the age of 18. Keep out of reach of children.
Storage
Storage
Store in a cool, dry place.
Formulation
Formulation re: Does NOT Contain
No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Milk, No Lactose, No Soy, No Gluten, No Wheat, No Yeast, No Fish. Sodium Free.
FDA Statements
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.
FDA Statement of Identity
VEGETARIAN DIETARY SUPPLEMENT
Other Label Statements
General Statements: All Other Content
Precision Engineered has pioneered the manufacture of premium sports nutrition supplements. Our commitment to quality is the highest in our industry. Every product undergoes rigorous analysis for purity, potency, safety and freshness. We guarantee it.
Brand IP Statement(s) re: (c), (TM), (SM)
(C) 2010 Precision Engineered Limited (USA)
General: Product/Version Code
PROD. # 67813 B67808 01A
General Statements: All Other Content
Pure L-Glutamine Powder -Glutamine is a crucial component of muscle cells. •Glutamine may promote replenishment of muscle glycogen stores after exercise when combined with carbohydrates.* -Intense exercise promotes Glutamine formation and release from muscle.* -Supports protein metabolism.*
Seals/Symbols
HARDCORE SERIES PRECISION ENGINEERED(R)
General Statements: All Other Content
Pro-Amino Muscle Fuel* - PROTEIN METABOLISM* - IMMUNE SYSTEM SUPPORT*
Seals/Symbols
QA QUALITY ASSURED
Manufacturer & Distributor
Other
1-800-228-4533
Manufacturer
Precision Engineered Limited (USA)
Bohemia, NY, 11716, U.S.A.
Market Reference
Pure Encapsulations L-Glutamine Powder
Pure For You4.7(163)$55.00
Precision Engineered Pure L-Glutamine Unflavored
Vitamin World USA$28.04
Beyond Raw Precision Amino Recovery & Power Amino Acid Formula
GNC4.5(45)$39.99
Doctor's Best Pure L-Glutamine Powder
Walmart4.8(2200)$20.32
Codeage Liposomal L Glutamine+ Powder
Bodybuilding.com4.7(132)$56.99
Leaky Gut Defense Digestive Support Powder
Pure TheraPro Rx$38.97
Glutamine 100% PURE Micronized Free Form
labnutrition$29.00
Nutricost L-Glutamine
Nutricost4.7(2300)$17.97
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.
180 Nutrition Hub
4.9 (60)Vitamin & supplements store
2132 W I-240 Service Road, Oklahoma City, OK 73159
Supplement World
4.8 (246)Vitamin & supplements store
820 SW 89th St, Oklahoma City, OK 73139
GNC
4.0 (63)Vitamin & supplements store
1413 B W I-240 Service Road, Oklahoma City, OK 73159
Prime Time Nutrition
4.3 (57)Grocery store
928 Straka Terrace, Oklahoma City, OK 73139
New star nutrition (Herbalife Nutrition Club)
5.0 (21)Vitamin & supplements store
2716 SW 29th St, Oklahoma City, OK 73119
Quality Supplement Manufacturing
4.1 (18)Manufacturer
300 N MacArthur Blvd, Oklahoma City, OK 73127
Sprouts Farmers Market
4.5 (947)Vitamin & supplements store
12100 S Pennsylvania Ave, Oklahoma City, OK 73170
GNC
4.2 (13)Vitamin & supplements store
3360 N Ave, Building 685, Oklahoma City, OK 73145
Research & Studies
L-Glutaminase as a therapeutic enzyme of microbial origin
A Sabu, KM Nampoothiri, A Pandey - Microbial Enzymes and …, 2005 - Springer
… body are essential for life and health. Microbial enzymes play a … In general a medium containing L-glutamine as the sole … inert materials for SSF facilitates accurate designing of media, …
200524 citationsAntibiotic-Free Expression of γ-Glutamyl Transpeptidase in Bacillus subtilis and Process Optimization for L-Theanine Separation and Purification
R Zhang, B Jiang, Z Xiao, L Xiang - Molecules, 2026 - mdpi.com
2026l-Glutamine-, peptidyl- and protein-glutaminases: structural features and applications in the food industry
YB Martínez, FV Ferreira, MA Musumeci - World Journal of Microbiology …, 2022 - Springer
… l-glutamine on human health, a case of hepatotoxicity caused by excessive intake of l-glutamine … deliberate intake of l-glutamine is not recommended and its supplementation should be …
202221 citationsSynthesis of amino acid using a flow-type microreactor containing enzyme–mesoporous silica microsphere composites
S Matsuura, M Chiba, E Tomon, T Tsunoda - RSC advances, 2014 - pubs.rsc.org
… -immobilised microreactor facilitates the precise control of the … In this study, the engineered glutaminase was prepared as … conversions of L-glutamine to L-theanine by free glutaminase …
201419 citationsStudy on the targeted regulation of Scutellaria baicalensis leaf on glutamine–glutamate metabolism and glutathione synthesis in the liver of d-gal ageing rats
C Chen, L Yang, M Li, L Gao, X Qin… - Journal of Pharmacy …, 2023 - academic.oup.com
… [12] Under oxidative stress, Nrf2 transcription factors are set free from the … and precision and interday accuracy and precision were … the levels of l-glutamine, l-glutamate, GSH and GSSG. …
20233 citationsPharmacological blockade of ASCT2-dependent glutamine transport leads to antitumor efficacy in preclinical models
ML Schulte, A Fu, P Zhao, J Li, L Geng, ST Smith… - Nature medicine, 2018 - nature.com
… discovery in the era of precision medicine. However, therapeutic … from a patient at Vanderbilt University Medical Center under a protocol approved by the Vanderbilt University Medical …
2018543 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2013-05-24. DSLD Label ID: 21218. 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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