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Standard doses of theanine range from 100 mg to 400 mg a day. I encourage you to start with the lowest dose, i.e. 1 capsule. If the effects are satisfactory, do not increase the dose.
People who want to combine theanine with caffeine can choose the most recommended option, i.e. the 1: 2 ratio.
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L-theanine is an amino acid, not building proteins, occurring naturally in the dried green tea leaves, absorbed from the gastrointestinal tract, overcomes easily blood-brain barrier, affecting the nervous system and the relation between neurotransmitters (e.g.dDopamine, serotonin, gamma-aminobutyric acid), with a relaxing effect and increases the psycho-physical capacity, (concentration, memory, alertness). Recommended for use for people burdened with considerable physical effort, athletes of sport disciplines that require concentration and memory, also for students in the period before exams. Available in the form of mono-preparations and multi-component relaxing and post-workout anti-stress supplements..
Dosage: customarily used in supplementation 50-200mg per day