Theanine
L-theanine is a unique, non-proteinogenic amino acid found almost exclusively in the tea plant (Camellia sinensis) and has been safely used in Japan for decades. The patented Suntheanine® has been the subject of at least 50 studies over the past 20 years. A Japanese study showed 200 mg of L-theanine increased alpha…
- Size
- 90 capsules
Sign in or create an account to view member prices
You need a Mito account to see prices and purchase supplements.
View member priceSuggested use
- Amount
- 1.00
- Frequency
- once per day
- Format
- Capsule
Directions
Take 1 capsule one to three times daily or as recommended by your health professional.
Delivery and returns
Shipping choices at checkout
- Standard
- 3–6 business days
- Priority
- 1–3 business days
- Next business day
- 1 business day
Standard shipping is free on supplement orders of $60 or more.
Standard shipping to Alaska, Hawaii, and Puerto Rico takes 10–13 business days. Next business day is not available there.
We will email tracking when your order ships.
Final sale
Orders cannot be cancelled or changed after checkout. For a damaged, wrong, missing, or undelivered item, email help@mitohealth.com within 14 days.
Ingredient Information
Key Ingredients
Ingredient Amounts
- Serving Size:
- One Capsule
| Name | Amount |
|---|---|
| L-Theanine | 200 mg |
Other Ingredients: Hypromellose Capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY If pregnant, consult your health professional before using this product. INTERACTIONS There are no known adverse interactions or contraindications at publication date.
Theanine Details
L-theanine is a unique, non-proteinogenic amino acid found almost exclusively in the tea plant (Camellia sinensis) and has been safely used in Japan for decades. The patented Suntheanine® has been the subject of at least 50 studies over the past 20 years. A Japanese study showed 200 mg of L-theanine increased alpha waves and relaxation, promoting a calm yet focused state, starting about 40 minutes after intake.
Benefits of Thorne's Theanine
- Modifies brain waves by increasing alpha-wave activity, promoting relaxation*
- Enhances neurotransmitters dopamine and serotonin, supporting a positive mood, focus, and memory*
- Supports GABA production, a neurotransmitter that helps calm stress responses*
- Balances cortisol and neurotransmitter activity to reduce mental and physical effects of stress*
- Decreases time to fall asleep and improves sleep quality*
- Lessens next-day dysfunction after a poor night’s sleep*
Features of Thorne’s Theanine
- Uses Suntheanine® − a patented form of L-theanine, supported by over 50 clinical studies
- Fast acting formulation – many people feel effects within 20 minutes
Who can benefit from Thorne’s Theanine
- Individuals looking to support cognitive function
- Anyone seeking enhanced mental clarity during times of stress
- Aging individuals looking to support brain cell membrane fluidity and cognitive health
- Those looking to modulate cortisol production to support a healthy stress response
- People desiring a restful sleep
This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.
Everything your health needs,
in one membership
-
Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
-
Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
-
Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
Mito Membership
$9 /mo
cancel anytime
Without membership
$0
pay as you go
At-cost pricing on labs, scans, and more
Supplements at member rates
On-demand clinician consults when you need guidance
Personalized action plans across supplements, exercise, nutrition, and sleep
AI health coaching to help you act on your results
Year-round medical support, with in-chat clinician escalation
All your health records in one personal vault, with trends and biological age tracking
Early access to new diagnostics and product releases
What members are saying
-
@nasdaily
-
15/10 experience - I felt actually taken care of
Super impressed with my Mito experience - the thoroughness of the intake, the data tracking and the doctor's visit.
RS Reena Sudan -
@ellarosemcfadin
-
Helped show an overall picture
I would highly recommend this service to anyone that wants a more in-depth picture of their health and labs. The platform is super user friendly.
BS Bo Sal -
@katelyn_kim
-
Specific and actionable advice
It felt like, for the first time, I had real data guiding me to make meaningful changes and I've definitely noticed the difference.
MH Maya Hickey -
@bryce_witmer
-
Tired of arguing with my PCP
After extensive research, I decided Mito was the best option. The insights were clear and make sense. Mito gave me peace of mind and a path to follow.
JO Josh -
@alexandradawson
-
3x the tests for less money
A great alternative to the basic blood work at your local clinic. Love the report card format. Much better value.
P Page -
@daniklass
-
Best $9 a month I spend
The action plan changes every time new results come in. I've actually never had a health company recommend doing less. Refreshing.
DP Devi Patel -
@natalieefer
-
Finally, prices that make sense
Every test is published. I can see what it costs and what I save as a member. No surprises.
KT Kenji Tanaka -
@tyler_sarkisian
Frequently asked questions
View all FAQsHow does supplement pricing work?
Supplement prices are available to signed-in Mito users. Product information remains public so you can understand the product before signing in.
Where does the product information come from?
Brand, sizes, suggested use, and manufacturer copy are supplied through Fullscript. Mito guidance is labeled separately when it is available.
Where can I find Supplement Facts and warnings?
When the manufacturer includes them in the supplied product information, they appear above. We do not yet receive Supplement Facts or warnings as consistent, structured fields for every product.