Skip to main content
Catalog/Theanine
Theanine — image 1 of 6

Theanine

🧬Amino Acids
💊Capsule
🌙Sleep🧘Stress
🔬Third-Party🏭GMP📊Clinical Evidence💪Optimal Doses

Tea-derived amino acid that promotes relaxation, focus, memory, and a healthy stress response* Theanine, mostly found in tea, boosts the production of alpha brain waves and supports neurotransmitters that help manage stress.*

Want to track Theanine?
Download Formulate free to build your stack, log daily intake, and get personalized feedback — no account required to browse scores.
Download Free

Description

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.

Recommended Use

Take 1 capsule one to three times daily or as recommended by your health-care practitioner.

Warnings

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-care practitioner before using this product. INTERACTIONS There are no known adverse interactions or contraindications at publication date.

Active Ingredients

3× DAILYAmounts shown are the daily total. Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
600mg
3× 200mg/serving
240% TR
OPTIMALCLINICAL

Other Ingredients

Hypromellose (derived from cellulose) capsule, Leucine, Calcium Laurate, Microcrystalline Cellulose

Product Info

Serving Size
1 Capsule
Servings
90
Price
$68.00
Per Serving
$0.76
Form
capsule

Where to Buy

Links may contain affiliate partnerships. See our disclosure for details.

Certifications

Gluten FreeSoy FreeDairy FreeNatural FlavorsNatural ColorsMade in USAThird-Party Contents CertifiedThorne VerifiedGMP Certified

Score Breakdown

Evidence Quality
30%100
Evidence grades: A(1)
Dose Adequacy
25%95
1 ingredient at optimal doses
Reference coverage: 100%
Form/Bioavailability
15%75
Form data not available for ingredients
Transparency
15%100
Label transparency: full
Safety/Redundancy
10%100
Focused formula (1 ingredients)
Manufacturing Quality
5%92
NSF Certified for Sport (premium)
Overall Score95/100

Systems supported

body systems this product feeds

Pathways supported

biochemical reactions enabled by this product

Related Resources