L-Theanine

non-nutrient/non-botanical

826

products

Updated April 2026

Dosage Range

0 mgavg 144.34 mg500 mg

L-Theanine is found in 1,413 supplement products from 328 brands. Dosages range from 0 to 500 mg, with an average of 144.34. The most common form is Capsule.

Top 5 Highest-Dosage L-Theanine Supplements

DEFCON3 Mid-Stim Ballistic Berry Lemonade by Anabolic Warfare — 500 mg
Hibernate Sleep Formula Peach Mango by Huge Supplements — 500 mg
L-Theanine 500 mg by BulkSupplements.com — 500 mg
Pro-Som by Integrative Therapeutics — 500 mg
Calm/Recharge by Allergy Research Group — 500 mg

DEFCON3 Mid-Stim Ballistic Berry Lemonade by Anabolic Warfare has the highest L-Theanine dosage at 500 mg. Calm Capsules by Natural Vitality has the lowest at 200 mg.

All Products

showing 100 of 826

Product	Brand	Amount	Daily Value	Form
DEFCON3 Mid-Stim Ballistic Berry Lemonade	Anabolic Warfare	500 mg	—	Powder
Hibernate Sleep Formula Peach Mango	Huge Supplements	500 mg	—	Powder
L-Theanine 500 mg	BulkSupplements.com	500 mg	—	Capsule
Pro-Som	Integrative Therapeutics	500 mg	—	Capsule
Calm/Recharge	Allergy Research Group	500 mg	—	Powder
L-Theanine (500 mg)	BulkSupplements.com	500 mg	—	Capsule
Hibernate Peach Mango	Huge Nutrition	500 mg	—	Powder
Organic Ashwagandha Rhodiola rosea + L-Theanine with Black Pepper Extract	X Gold Health	400 mg	—	Capsule
Sleep Advance	Logos Nutritionals	400 mg	—	Capsule
Lean Dream	Fully Flora	400 mg	—	Capsule
Sleep Well	Healthy Choice Naturals	400 mg	—	Capsule
NanoSnooze	Biopharma Scientific	400 mg	—	Capsule
L-Theanine	Pure Encapsulations	400 mg	—	Capsule
Sleep Well	Supplement Spot	400 mg	—	Capsule
Sleep Eazy	Totally Products	400 mg	—	Capsule
L-Theanine 400 mg	OL Olympian Labs	400 mg	—	Capsule
ProDoze	Nutracraft	400 mg	—	Capsule
L-Theanine 400 mg	Mental Refreshment	400 mg	—	Capsule
Preseries Bulk Blue Raspberry	Transparent Labs	360 mg	—	Powder
L-Theanine	Earthborn Elements	355 mg	—	Capsule
Maniac Fruit Explosion	Anabolic Warfare	350 mg	—	Powder
Maniac Apple Ambush	Anabolic Warfare	350 mg	—	Powder
Maniac Guerilla Grape	Anabolic Warfare	350 mg	—	Powder
Pulse Fruit Punch	Legion	350 mg	—	Powder
PRE Pre-Workout Complex Blue Raspberry	Nutricost Performance	300 mg	—	Powder
PRE Pre-Workout Complex Peach Mango	Nutricost Performance	300 mg	—	Powder
Sleep Aid	HTLT Essentials	300 mg	—	Capsule
Rhodiola & Ashwagandha with L-Theanine	Swiss BioEnergetics	300 mg	—	Capsule
L-Theanine 300	Everyday Health	300 mg	—	Capsule
PRE Pre-Workout Complex Watermelon	Nutricost Performance	300 mg	—	Powder
ZuSleep Apple Cinnamon Flavor	UMZU	300 mg	—	Powder
Pre Watermelon	Nutricost Performance	300 mg	—	Powder
Pre-Workout Complex Blue Raspberry	Nutricost	300 mg	—	Powder
HARD Extreme Black Lightning	Core Nutritionals	300 mg	—	Unknown
HARD	Core Nutritionals	300 mg	—	Capsule
HARD Extreme Pineapple Strawberry	Core Nutritionals	300 mg	—	Powder
Tao in a Bottle	Ron Teeguarden's Dragon Herbs	300 mg	—	Capsule
PRE Pre-Workout Complex Grape	Nutricost Performance	300 mg	—	Powder
Hard	Core Nutritionals	300 mg	—	Capsule
Pre-Workout For Women Strawberry	Nutricost	300 mg	—	Powder
PRE Pre-Workout Complex Fruit Punch	Nutricost Performance	300 mg	—	Powder
Longevity Nutrients	SuperSmart	300 mg	—	Capsule
L-Theanine	NOW	285 mg	—	Powder
Winter Wellness	Life Extension	280 mg	—	Capsule
Neuro-T	LifeSeasons	250 mg	—	Capsule
SST Lean Sleep	Performix	250 mg	—	Capsule
L-Theanine 250 mg	Kirkman	250 mg	—	Capsule
SST Support Lean Sleep	Performix	250 mg	—	Capsule
L-Theanine 250 mg	Arazo Nutrition	250 mg	—	Capsule
Focus-R	LifeSeasons Therapeutics	250 mg	—	Capsule
Immune Care	Nature Made	200 mg	—	Tablet or Pill
Project-1 Candy Burst	1st Phorm	200 mg	—	Powder
Feeling Zen	Vital Proteins	200 mg	—	Capsule
Prolific Melon Berry Twist	PEScience	200 mg	—	Powder
Prolific Black Cherry	PEScience	200 mg	—	Powder
L-Theanine 200 mg Unflavored	Nutricost	200 mg	—	Powder
Prolific Guava Pineapple Punch	PEScience	200 mg	—	Powder
Last Thing	Beachbody	200 mg	—	Capsule
Nite Nite Very Cherry Berry	Arms Race Nutrition	200 mg	—	Powder
ZZZ Cherry Bomb	Core Nutritionals	200 mg	—	Powder
Active Focus	Bayer One A Day	200 mg	—	Softgel Capsule
L-Theanine 200 mg Natural Mint Flavor	Vitamin World	200 mg	—	Tablet or Pill
Ultra Calm Chocolate Coconut Flavored	Metagenics	200 mg	—	Bar
Nite Nite Lemon Chamomile	Arms Race Nutrition	200 mg	—	Powder
Omnizen	PEScience	200 mg	—	Capsule
Sleep Well	Vali	200 mg	—	Capsule
Theanine Serene With Relora	Source Naturals	200 mg	—	Tablet or Pill
Sleep Gummies Berry Flavor	Qunol	200 mg	—	Gummy or Jelly
ACTS	TLS Weight Loss Solution	200 mg	—	Capsule
Caffeine + L-Theanine Capsules 100/200 mg	Nootropics Depot	200 mg	—	Capsule
Relaxed Mood Natural Tropical Flavor	vitafusion	200 mg	—	Gummy or Jelly
More Chill Magnesium + L-Theanine	Well Minerals Powered by MDLogic	200 mg	—	Capsule
Calm Mood & Stress	Natural Vitality	200 mg	—	Capsule
Mind Caffeine Free	Qualia	200 mg	—	Capsule
L-Theanine 200 mg	Puritan's Pride	200 mg	—	Capsule
L-Theanine 200 mg Sweet Cherry	EZ Melts	200 mg	—	Tablet or Pill
Pre-Workout+ Frozen Lemonade	Alani Nu	200 mg	—	Powder
Women's Wellness Period Partner	Renew Life	200 mg	—	Capsule
L-Theanine	Hard Rhino	200 mg	—	Powder
Hemp + Stress	Puritan's Pride	200 mg	—	Softgel Capsule
L-Theanine 200 mg Capsules	BulkSupplements.com	200 mg	—	Capsule
PRE Strawberry	Nutricost Women	200 mg	—	Powder
Smart Caffeine With L-Theanine	NS Natural Stacks	200 mg	—	Capsule
POW Berry Melon Fizz	EBOOST	200 mg	—	Powder
CRIT Candy Apple Punch	Blackstone Labs	200 mg	—	Powder
PRE Watermelon	Nutricost Women	200 mg	—	Powder
ZZZ Pineapple Peach	Core Nutritionals	200 mg	—	Powder
Jocko Good Night 2.0	Jocko Fuel	200 mg	—	Capsule
L-Theanine 200 mg	Evlution Nutrition	200 mg	—	Capsule
Libido	Nugenix for Women	200 mg	—	Capsule
REM Zone	Ultimate Nutrition	200 mg	—	Capsule
Pre-Workout Strawberry Lemonade Flavored	Ladder	200 mg	—	Powder
First Thing	Beachbody	200 mg	—	Powder
Pre-Workout Citrus Dew	Alani Nu	200 mg	—	Powder
SleepMode	Evlution Nutrition	200 mg	—	Capsule
L-Theanine	BulkSupplements.com	200 mg	—	Powder
DynaMax Enhanced Caffeine	Natrium Health	200 mg	—	Capsule
Gorilla Dream	Gorilla Mind	200 mg	—	Capsule
L-Theanine 200 mg	Nature's Way	200 mg	—	Capsule
Calm Capsules	Natural Vitality	200 mg	—	Capsule

DEFCON3 Mid-Stim Ballistic Berry Lemonade Anabolic Warfare

500 mg— DVPowder

Hibernate Sleep Formula Peach Mango Huge Supplements

500 mg— DVPowder

L-Theanine 500 mg BulkSupplements.com

500 mg— DVCapsule

Pro-Som Integrative Therapeutics

500 mg— DVCapsule

Calm/Recharge Allergy Research Group

500 mg— DVPowder

L-Theanine (500 mg)BulkSupplements.com

500 mg— DVCapsule

Hibernate Peach Mango Huge Nutrition

500 mg— DVPowder

Organic Ashwagandha Rhodiola rosea + L-Theanine with Black Pepper Extract X Gold Health

400 mg— DVCapsule

Sleep Advance Logos Nutritionals

400 mg— DVCapsule

Lean Dream Fully Flora

400 mg— DVCapsule

Sleep Well Healthy Choice Naturals

400 mg— DVCapsule

NanoSnooze Biopharma Scientific

400 mg— DVCapsule

L-Theanine Pure Encapsulations

400 mg— DVCapsule

Sleep Well Supplement Spot

400 mg— DVCapsule

Sleep Eazy Totally Products

400 mg— DVCapsule

L-Theanine 400 mg OL Olympian Labs

400 mg— DVCapsule

ProDoze Nutracraft

400 mg— DVCapsule

L-Theanine 400 mg Mental Refreshment

400 mg— DVCapsule

Preseries Bulk Blue Raspberry Transparent Labs

360 mg— DVPowder

L-Theanine Earthborn Elements

355 mg— DVCapsule

Maniac Fruit Explosion Anabolic Warfare

350 mg— DVPowder

Maniac Apple Ambush Anabolic Warfare

350 mg— DVPowder

Maniac Guerilla Grape Anabolic Warfare

350 mg— DVPowder

Pulse Fruit Punch Legion

350 mg— DVPowder

PRE Pre-Workout Complex Blue Raspberry Nutricost Performance

300 mg— DVPowder

PRE Pre-Workout Complex Peach Mango Nutricost Performance

300 mg— DVPowder

Sleep Aid HTLT Essentials

300 mg— DVCapsule

Rhodiola & Ashwagandha with L-Theanine Swiss BioEnergetics

300 mg— DVCapsule

L-Theanine 300 Everyday Health

300 mg— DVCapsule

PRE Pre-Workout Complex Watermelon Nutricost Performance

300 mg— DVPowder

ZuSleep Apple Cinnamon Flavor UMZU

300 mg— DVPowder

Pre Watermelon Nutricost Performance

300 mg— DVPowder

Pre-Workout Complex Blue Raspberry Nutricost

300 mg— DVPowder

HARD Extreme Black Lightning Core Nutritionals

300 mg— DVUnknown

HARD Core Nutritionals

300 mg— DVCapsule

HARD Extreme Pineapple Strawberry Core Nutritionals

300 mg— DVPowder

Tao in a Bottle Ron Teeguarden's Dragon Herbs

300 mg— DVCapsule

PRE Pre-Workout Complex Grape Nutricost Performance

300 mg— DVPowder

Hard Core Nutritionals

300 mg— DVCapsule

Pre-Workout For Women Strawberry Nutricost

300 mg— DVPowder

PRE Pre-Workout Complex Fruit Punch Nutricost Performance

300 mg— DVPowder

Longevity Nutrients SuperSmart

300 mg— DVCapsule

L-Theanine NOW

285 mg— DVPowder

Winter Wellness Life Extension

280 mg— DVCapsule

Neuro-T LifeSeasons

250 mg— DVCapsule

SST Lean Sleep Performix

250 mg— DVCapsule

L-Theanine 250 mg Kirkman

250 mg— DVCapsule

SST Support Lean Sleep Performix

250 mg— DVCapsule

L-Theanine 250 mg Arazo Nutrition

250 mg— DVCapsule

Focus-R LifeSeasons Therapeutics

250 mg— DVCapsule

Immune Care Nature Made

200 mg— DVTablet or Pill

Project-1 Candy Burst 1st Phorm

200 mg— DVPowder

Feeling Zen Vital Proteins

200 mg— DVCapsule

Prolific Melon Berry Twist PEScience

200 mg— DVPowder

Prolific Black Cherry PEScience

200 mg— DVPowder

L-Theanine 200 mg Unflavored Nutricost

200 mg— DVPowder

Prolific Guava Pineapple Punch PEScience

200 mg— DVPowder

Last Thing Beachbody

200 mg— DVCapsule

Nite Nite Very Cherry Berry Arms Race Nutrition

200 mg— DVPowder

ZZZ Cherry Bomb Core Nutritionals

200 mg— DVPowder

Active Focus Bayer One A Day

200 mg— DVSoftgel Capsule

L-Theanine 200 mg Natural Mint Flavor Vitamin World

200 mg— DVTablet or Pill

Ultra Calm Chocolate Coconut Flavored Metagenics

200 mg— DVBar

Nite Nite Lemon Chamomile Arms Race Nutrition

200 mg— DVPowder

Omnizen PEScience

200 mg— DVCapsule

Sleep Well Vali

200 mg— DVCapsule

Theanine Serene With Relora Source Naturals

200 mg— DVTablet or Pill

Sleep Gummies Berry Flavor Qunol

200 mg— DVGummy or Jelly

ACTS TLS Weight Loss Solution

200 mg— DVCapsule

Caffeine + L-Theanine Capsules 100/200 mg Nootropics Depot

200 mg— DVCapsule

Relaxed Mood Natural Tropical Flavor vitafusion

200 mg— DVGummy or Jelly

More Chill Magnesium + L-Theanine Well Minerals Powered by MDLogic

200 mg— DVCapsule

Calm Mood & Stress Natural Vitality

200 mg— DVCapsule

Mind Caffeine Free Qualia

200 mg— DVCapsule

L-Theanine 200 mg Puritan's Pride

200 mg— DVCapsule

L-Theanine 200 mg Sweet Cherry EZ Melts

200 mg— DVTablet or Pill

Pre-Workout+ Frozen Lemonade Alani Nu

200 mg— DVPowder

Women's Wellness Period Partner Renew Life

200 mg— DVCapsule

L-Theanine Hard Rhino

200 mg— DVPowder

Hemp + Stress Puritan's Pride

200 mg— DVSoftgel Capsule

L-Theanine 200 mg Capsules BulkSupplements.com

200 mg— DVCapsule

PRE Strawberry Nutricost Women

200 mg— DVPowder

Smart Caffeine With L-Theanine NS Natural Stacks

200 mg— DVCapsule

POW Berry Melon Fizz EBOOST

200 mg— DVPowder

CRIT Candy Apple Punch Blackstone Labs

200 mg— DVPowder

PRE Watermelon Nutricost Women

200 mg— DVPowder

ZZZ Pineapple Peach Core Nutritionals

200 mg— DVPowder

Jocko Good Night 2.0 Jocko Fuel

200 mg— DVCapsule

L-Theanine 200 mg Evlution Nutrition

200 mg— DVCapsule

Libido Nugenix for Women

200 mg— DVCapsule

REM Zone Ultimate Nutrition

200 mg— DVCapsule

Pre-Workout Strawberry Lemonade Flavored Ladder

200 mg— DVPowder

First Thing Beachbody

200 mg— DVPowder

Pre-Workout Citrus Dew Alani Nu

200 mg— DVPowder

SleepMode Evlution Nutrition

200 mg— DVCapsule

L-Theanine BulkSupplements.com

200 mg— DVPowder

DynaMax Enhanced Caffeine Natrium Health

200 mg— DVCapsule

Gorilla Dream Gorilla Mind

200 mg— DVCapsule

L-Theanine 200 mg Nature's Way

200 mg— DVCapsule

Calm Capsules Natural Vitality

200 mg— DVCapsule

Frequently Asked Questions

How many products contain L-Theanine?

There are 1,413 supplement products containing L-Theanine from 328 brands in the NIH DSLD database.

What is the average L-Theanine dosage?

The average L-Theanine dosage across supplement products is 144.34 mg. Dosages range from 0 to 500 mg.

What is the most common form for L-Theanine supplements?

The most common product form for L-Theanine supplements is Capsule.

What brands make L-Theanine supplements?

There are 328 brands that make supplements containing L-Theanine in the NIH DSLD database.

Related Ingredients

Inositol7,467 Lutein3,954 Lycopene3,130 Coenzyme Q102,898 Alpha Lipoic Acid2,496 PABA2,209 Rutin2,169 Taurine2,137

Explore More

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High-dose L-Theanine options →

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Compare L-Theanine with other non-nutrient/non-botanical ingredients →

Quick Facts

Products: 1,413
Brands: 328
Avg Dose: 144.34 mg
Common Form: Capsule
Category: non-nutrient/non-botanical

Related Ingredients

Inositol7,467 Lutein3,954 Lycopene3,130 Coenzyme Q102,898 Alpha Lipoic Acid2,496