Focus, Relaxation and CreativityLet's start with a personal question: Do you meditate? If yes, you probably already know the feeling of L-Theanine. Scientific studies have shown that the amino acid L-Theanine triggers the release of alpha brain waves. We will spare you all the details of the scientific processes within the brain, however the effect is remarkable: The alpha brain waves lead to a state of mind, which also occurs during meditation as well as creative tasks. Scientific studies conclude that the release of alpha-waves enhances focus, relaxation and creativity. Amazing, isn't it? 
Anti-stress effectsWe talked about meditation before. Now it's time for stress: What happens if you take L-Theanine before a special stressful situation (e.g. exam or competition)? Scientific studies have shown that the amino acid L-Theanine may reduce anxiety and stress. This means L-Theanine may help support the mental performance.  
Anti-inflammatory propertiesHey Guayusa! We didn't talk about you for a while. The study by Pardau et al. (2017, ) found out that Guayusa is a «good source of dietary phenolic compounds with cellular antioxidant and anti-inflammatory properties». The amino acid L-Theanine plays also an important role here. We love your symbiosis!
Caffeine + L-Theanine Combination
There is a good chance that you found this blog article because you are searching for additional information about the exciting combination of caffeine and Theanine. The combination of caffeine and L-Theanine is one of the most known nootropics or also used for natural biohacking. It's also one of the most researched natural nootropic: There are hundreds scientific studies from well-known scientific journals.
Pure caffeine (without L-Theanine) like in coffee or energy drinks can be your worst enemy. Caffeine interacts with neurotransmitters in the brain and can cause feelings like nervousness and anxiety.  However, in combination with L-Theanine, caffeine becomes your beloved friend. Guayusa contains caffeine, L-Theanine as well as valuable polyphenols (antioxidants). This special combination makes Guayusa a superior option compared to coffee and energy drinks.
All cited scientific studies can be found at the bottom of our Guayusa page.