Jarrow Formulas Theanine 100 provides 100 mg of L-Theanine per capsule, a unique amino acid found in green tea that promotes relaxation without drowsiness. Theanine supports alpha brain wave formation, helping to maintain mental clarity, stress balance, and cognitive function.
Supports relaxation, mental clarity, and stress balance
Provides 100 mg of L-Theanine per capsule
Helps maintain alpha brain wave formation for cognitive function
Clinically tested for bioavailability and effectiveness
Vegetarian, allergen-free, and room-temperature stable
Non-GMO, gluten-free, and vegetarian
Free from wheat, soy, dairy, egg, fish/shellfish, peanuts/tree nuts, and sesame
Complies with UK and EU supplement regulations
L-Theanine – 100 mg
Microcrystalline Cellulose
Capsule Shell (Hydroxypropylmethyl Cellulose, Water)
Magnesium Stearate (Vegetable Source)
Silicon Dioxide
Adults take one capsule one to two times daily with water or juice on an empty stomach or as directed by a healthcare professional. Consistent use is recommended for optimal results.
Fast and reliable shipping ensures timely delivery for all orders.
Domestic Orders (UK)
Shipped same day if placed before 3 PM (Monday to Friday) and 12 PM on Saturdays
Sent via Tracked 24-hour service for quick delivery
International Orders
Estimated delivery within 3–5 working days, depending on location
For full details, please see our Shipping Policy