Suntheanine

non-nutrient/non-botanical

products

Updated April 2026

Dosage Range

24 mgavg 134.79 mg400 mg

Suntheanine is found in 117 supplement products from 39 brands. Dosages range from 24 to 400 mg, with an average of 134.79. The most common form is Capsule.

Top 5 Highest-Dosage Suntheanine Supplements

L-Theanine 200 mg by Woodstock Vitamins — 400 mg
Suntheanine 400 mg by SuperSmart — 400 mg
L-Theanine by XYMOGEN — 400 mg
L-Theanine 200 mg by Sports Research — 200 mg
Burn MF Gummy Worm by GNC Beyond Raw — 200 mg

L-Theanine 200 mg by Woodstock Vitamins has the highest Suntheanine dosage at 400 mg. Gut-Brain Balance by Hyperbiotics has the lowest at 100 mg.

All Products

showing 66 of 66

Product	Brand	Amount	Daily Value	Form
L-Theanine 200 mg	Woodstock Vitamins	400 mg	—	Capsule
Suntheanine 400 mg	SuperSmart	400 mg	—	Capsule
L-Theanine	XYMOGEN	400 mg	—	Capsule
L-Theanine 200 mg	Sports Research	200 mg	—	Softgel Capsule
Burn MF Gummy Worm	GNC Beyond Raw	200 mg	—	Powder
Spectrum Awakening	Metabolic Maintenance	200 mg	—	Powder
L-Theanine 200 mg	Country Life	200 mg	—	Capsule
Adreno Calm	Genestra Brands	200 mg	—	Capsule
L-Theanine 200 mg	DaVinci Laboratories	200 mg	—	Capsule
Theanine	Thorne	200 mg	—	Capsule
Zen Adapt with Sensoril	Allergy Research Group	200 mg	—	Capsule
L-Theanine 200 mg Plus Gaba 100 mg	Dr. Mercola	200 mg	—	Capsule
Zen Sleep with P5P and 5-HTP	Allergy Research Group	200 mg	—	Capsule
L-Theanine	Ortho Molecular Products	200 mg	—	Capsule
Cerebral Calm	Emerald Labs	200 mg	—	Capsule
TrueZs	NatureCity	200 mg	—	Capsule
Burn MF Orange Mango	GNC Beyond Raw	200 mg	—	Powder
CaffPhenol	Pure Encapsulations	200 mg	—	Capsule
L-Theanine 200 mg	Metabolic Maintenance	200 mg	—	Capsule
Sleep Tonight Melatonin Drops Cherry Flavored	Nature's Way	200 mg	—	Liquid
Stress Support	The Vitamin Shoppe	200 mg	—	Capsule
Sleep + Blueberry Flavored	Thorne Research	200 mg	—	Other (e.g. tea bag)
Sleep Health	Emerald Labs	150 mg	—	Capsule
Sleep Complete	DaVinci Laboratories	100 mg	—	Capsule
Teen Focus	Advanced Nutrition by Zahler	100 mg	—	Capsule
EstroComfort	Futurebiotics	100 mg	—	Capsule
Sleep Solution (Single Dose Liquid)	Pure Encapsulations	100 mg	—	Liquid
Pure Tranquility Liquid	Pure Encapsulations	100 mg	—	Liquid
Tranquinol	Premier Research Labs	100 mg	—	Capsule
Relax Sleep Formula	CATALO	100 mg	—	Tablet or Pill
ChildCalm Fruit Punch Flavor	Advanced Nutrition by Zahler	100 mg	—	Tablet or Pill
Sleep Benefits Melatonin Free	DaVinci Benefits Line	100 mg	—	Capsule
Vital Adrenal Cortisol Support	Woodstock Vitamins	100 mg	—	Capsule
PRO-Mood with l-theanine	Hyperbiotics	100 mg	—	Tablet or Pill
Sleep Select	Moss Nutrition	100 mg	—	Capsule
Stress Release	Body Kitchen	100 mg	—	Capsule
Sleep Benefits	DaVinci Benefits Line	100 mg	—	Capsule
Daily Pure Pack Mood Balance	Pure Encapsulations	100 mg	—	Other (e.g. tea bag)
Mood Food ES	XYMOGEN	100 mg	—	Capsule
Suntheanine L-Theanine 100 mg	Swanson	100 mg	—	Capsule
Cortisolv	XYMOGEN	100 mg	—	Capsule
L-Theanine 100 mg Mint Flavored	Country Life	100 mg	—	Tablet or Pill
Stress Balance	Country Life Gut Connection	100 mg	—	Capsule
Just Relax Watermelon	Pure TheraPro Rx	55 mg	—	Powder
Just Relax Cherry	Pure TheraPro Rx	55 mg	—	Powder
RelaxMax	XYMOGEN	50 mg	—	Powder
Day	Natrol	50 mg	—	Tablet or Pill
Daily Pure Pack Healthy Sleep	Pure Encapsulations	50 mg	—	Other (e.g. tea bag)
PM Formula	Nature's Way	50 mg	—	Tablet or Pill
Stress Guard	Oregon's Wild Harvest	50 mg	—	Capsule
Best-Rest Formula	Pure Encapsulations	50 mg	—	Capsule
Sleep Essential Natural Berry Flavor	ChildLife Essentials	50 mg	—	Liquid
RelaxMax Natural Cherry Flavor	XYMOGEN	50 mg	—	Powder
Prothrivers Wellness Sleep	Integrative Therapeutics	50 mg	—	Capsule
Maxi-Skin Collagen + L-Theanine Zen Orange Mandarin Flavored Powder	Country Life	30 mg	—	Powder
Thermoset	DaVinci Laboratories	25 mg	—	Capsule
Kyolic Formula 109	Kyolic	24 mg	—	Capsule
Kyolic Nattokinase, Suntheanine	Kyolic	24 mg	—	Capsule
Kyolic Nattokinase, Suntheanine Formula 109	Kyolic	24 mg	—	Capsule
Natural Stress ReliefDiscontinued	Life Extension	200 mg	—	Capsule
Sleep + Wild BlueberryDiscontinued	Thorne Research	200 mg	—	Other (e.g. tea bag)
Sleep tonight Melatonin Drops Cherry FlavoredDiscontinued	Nature's Way	200 mg	—	Liquid
Quantum Sleep and MoodDiscontinued	Quantum Nutrition Labs	100 mg	—	Capsule
L-Theanine 100 mgDiscontinued	Country Life	100 mg	—	Unknown
Quantum Relax and SlumberDiscontinued	Quantum Nutrition Labs	100 mg	—	Capsule
Gut-Brain BalanceDiscontinued	Hyperbiotics	100 mg	—	Tablet or Pill