Get in the Mood with L-Theanine

A unique amino acid found in green tea and one type of mushroom, L-theanine promotes a relaxed yet alert mental state, without sedation

Tring, United Kingdom, October 26, 2006 --( Solgar Vitamin & Herb is proud to announce the launch of its new amino acid supplement, L-Theanine. This unique amino acid is almost exclusively found in green tea and one type of mushroom. Thought to cross the blood brain barrier and shown to have a positive effect directly stimulating the production of alpha brain waves, Theanine creates a state of deep relaxation and mental alertness similar to what is achieved through meditation.

As you may know, the brain emits weak electrical impulses (brain waves) that can be measured on the surface of the head. Brain waves are classified into four categories (delta, theta, alpha and beta) – each with an associated mental state. Delta is seen only in the deepest stages of sleep. Theta is seen in light sleep or drowsiness. Beta is seen in awake normal alert and focused stages of the day, e.g. at work. However in highly stressful situations, where there is difficulty in mental concentration some people find it difficult to wind down into other states. Alpha is present in relaxed, calm, lucid wakefulness where there is a relaxed and effortless alertness. It is well known that alpha brain waves are generated during a relaxed state and therefore alpha waves are used as an index of relaxation. In one study, alpha waves were observed within approximately 40 minutes after taking L-Theanine (i) (ii). Achieving a relaxed state-of-mind would be of particular relevance to mood stabilisation and openness to learning and memory activities. It is also used by some practitioners as an alternative to kava kava.

In addition the antioxidant properties of L-theanine are believed to support overall cardiovascular health by helping the body protect itself from LDL cholesterol, oxidation and promoting normal blood pressure.

L-Theanine is an amino acid, which possesses many qualities that can help support the body, and can benefit numerous individuals.

L-Theanine is marketed in the UK by Solgar Vitamin & Herb and will have an RRP of £25.85, available from 24th September 2006.

For more information please contact Marie Kendall or Sarah Hibbert on +44 (0) 1442 890355 or go to

i) Mason R. 200mg of Zen; L-theanine boosts alpha waves, promotes alert relaxation. Alternative and Complementary Therapies. 2001, April; 7:91-95

ii) Juneja LR, Chu D-C, Okubo T, et al. L-Theanine a unique amino acid of green tea and its relaxation effect in humans. Trends Food Sci Teen 1999; 10: 199-204

Solgar Vitamin & Herb
Sarah Hibbert
01442 890355