L-Theanine™

Non-Nutrient / Non-Botanical

Brand: Hard Rhino

PowderNon-Nutrient/Non-BotanicalOn Market

Functions

Sleep, Mood & Stress

Product label for L-Theanine — Click to view full label

Net Contents

5 kg

Serving Size

0.2 Gram(s)

Servings Per Container

25000

Supplement Form

Powder

Bar Code (UPC/SKU)

7 98711 50028 4

Product Version

Not Present

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

Contains

Milk
Egg
Shellfish
Tree Nuts
Wheat
Sesame

Free From

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: 0.2 Gram(s) · 1–2 per day

Ingredient	Amount Per Serving
L-Theanine	200 mg	—

Based on 2,000 calorie diet.

Other Ingredients

None

Target Groups

Adult (18 - 50 Years)No AllergiesGluten FreeDairy Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take 1 leveled scoop (~200mg) with 6-8 ounces of water or suitable beverage. Taken 1-2 times daily, preferably on an empty stomach or as directed by a qualified health professional. A micro scale is recommended for accurate measuring.

Warnings & Precautions

Precautions re: Children

Warning: Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s).

Precautions re: Pregnant or Nursing or Prescription Medications

Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s).

Precautions re: All Other

Always consult with a qualified health physician before taking any new dietary supplement.

Precautions re: All Other

Do not use or consume if seal is broken.

Storage

Storage: Store in a cool, dry place. Re-seal inner bag immediately after use to preserve freshness.

Formulation

Formulation re: Does NOT Contain

Allergens: This product contains no soy, dairy, dairy byproducts, eggs, shellfish, wheat, gluten, tree nuts, or sesame seeds.

Formulation re: Does NOT Contain

-Non-GMO -Gluten free -Allergen free

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Other Label Statements

General Statements: All Other Content

Bulk pail - Best value - Scoop inside - 25000 servings

Manufacturer & Distributor

Manufacturer

Guardian Wholesale

Phoenix, AZ, 85085

(866)961-8378

Support@HardRhino.com

Market Reference

$6.43 – $1926.00· 40 listings

Spring Valley L-Theanine Capsules 100 mg 100 Count
Walmart4.4(296)
$6.43Lowest
Double Wood Supplements L-Theanine
Double Wood Supplements4.8(111)
$19.95
Nature Made Chewable L Theanine Tablets
Target4.4(59)
$15.79
Sports Research L-Theanine Suntheanine Softgels
Sports Research4.7(1000)
$38.95
MaryRuth's L-Theanine Liquid Drops
Walmart - MaryRuths4.8(223)
$15.37
Nootropics Depot L-Theanine Capsules
Nootropics Depot4.5(15)
$44.99
Ryno Power Motivation Capsules Single Serving
Dennis Kirk4.4(41)
$28.95
Now Foods L-Theanine 60 Capsules
Wonder Laboratories4.7(7600)
$12.56

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.

Nature's Best
4.4 (80)
Vitamin & supplements store
1340 S Hwy 27, Somerset, KY 42501
Directions (606) 677-1944
Next Level Sports Nutrition
5.0 (647)
Vitamin & supplements store
4101 Tates Creek Centre Dr #128, Lexington, KY 40517
Directions (502) 289-6400
Nutritional Center
4.9 (38)
Health and beauty shop
802 S 4th St, Danville, KY 40422
Directions (859) 936-2124
The Vitamin Shoppe
4.2 (125)
Vitamin & supplements store
4005 Nicholasville Rd, Lexington, KY 40503
Directions (859) 272-2227
Cumberland Nutrition LLC
Vitamin & supplements store
51 Bernard Ln, Russell Springs, KY 42642
Directions (270) 866-9493
New Life Natural Foods
4.6 (14)
Vitamin & supplements store
411 Dons Drive, London, KY 40741
Directions (606) 878-2806
GNC
4.6 (25)
Vitamin & supplements store
2055 Lantern Ridge Dr, Richmond, KY 40475
Directions (859) 625-1600
Sonshine Natural
4.8 (24)
Vitamin & supplements store
208 Nancy Cox Dr, Campbellsville, KY 42718
Directions (270) 789-1833

Research & Studies

Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials
J Cotter, CE Caddick, JL Harper… - Nutritional …, 2026 - Taylor & Francis
… Though many of the included studies were conducted using healthy adults in Japan, beneficial effects of L-theanine on sleep related-measures were also reported in randomised, …
20269 citations
Stacker 2 Sleep Chew Gummies 20mg Melatonin In Stock
T Ten Energy, FT Ten Ephedra, T Ten Pre-Workout… - racerephedra.com
… the night, these issues can have a significant impact on our health and well-being. One of the most … Another key ingredient is L-theanine, an amino acid found in green tea that promotes …
A Year of Compassion: 52 Weeks of Living Zero-Waste, Plant-Based, and Cruelty-Free
C Patrick-Goudreau - 2025 - books.google.com
… Please consult with your physician or healthcare specialist regarding how the … improve your health, heal our Earth, and prevent violence against animals, the environmental benefits of …
2025
Dietary Suspects: Extracting the Truth from Dietary Supplements with a Standardized Federal Testing Seal.
NA Traver - Arizona State Law Journal, 2023 - arizonastatelawjournal.org
… Although there are legitimate medical uses of dietary supplements,11 … ,151 L-theanine for ADHD,152 or curcumin (turmeric) extracts for depression,153 they do not intend to supplement …
20235 citations
Edge Pump Psycho Pharma Night Time Pre-Workout In Stock
T Ten Energy, FT Ten Ephedra - racerephedra.com
… Elevate your cognitive abilities to new heights with Alpha GPC, Lion's Mane, and L-Theanine. … medical advice. Always consult with a healthcare professional before starting any dietary …

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-04-25. DSLD Label ID: 72083. 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.