Who could use a daily brain boost? Whether you're dealing with work pressures, personal challenges, or simply the overwhelming demands of modern life, finding ways to maintain a sense of calm and mental clarity is what many of us strive for. One natural compound that has gained attention for its cognitive and calming benefits is the natural "nootropic" L-Theanine, and it's why it's a vital ingredient of our Leapfrog FOCUS formula. L-Theanine is a supplement that wellness experts often recommend, so we asked three nutritionists why they swear by it. 

Lauren Windas 

Nutritionist and co-founder of Ardere

 

"As a nutritionist, I’m a big fan of L-Theanine for supporting clients who are dealing with high levels of stress, anxiety or nervous system dysregulation. This can massively overlap with symptoms of chronic fatigue which I work very closely with in my clinical practice. What I particularly love about it is its ability to promote calm and focus throughout the day. It’s particularly beneficial for those experiencing the “tired and wired” feeling, because it helps to increase calming neurotransmitters (i.e. brain chemicals) such as GABA, to induce a much more relaxed and alert state. I’ve found it especially useful for those with anxiety, burnout, chronic fatigue or sleep issues and particularly if somebody has a very overactive or racing mind. It’s a gentle but effective tool within the wider context of nervous system and a lifestyle support for those dealing with high stress."

Emma Davies

Nutritionist and founder of Pom Nutrition

 

"L-Theanine is one of my favourite supplements in clinic because it gives us a quiet alertness that helps us to stay productive. It supports the production of 'feel good' hormones dopamine and seratonin, and also GABA, the calming neurotransmitter. By enhancing GABA activity, L-Theanine quiets mental chatter and eases tension, helping you find a state of relaxed focus without the drowsiness. It’s a gentle, natural way to balance mood and reclaim your calm."

Tanya Borowski

Nutritionist and Head of Education at Amrita Nutrition

 

"L-Theanine is a powerhouse for focus and mood, helping you stay focused and productive by reducing mind-wandering and promoting relaxation. It's also a natural stress-buster, calming anxiety and boosting mood. One of its primary mechanisms is through the inhibition of glutamate receptors, which can lead to a decrease in neuronal excitotoxicity. At the same time, it amplifies the soothing effects of GABA, our brain's natural relaxation chemical. L-Theanine has also been found to increase the power of alpha brain waves. Overall L-Theanine creates a sense of calm and clarity."

What is L-Theanine?

L-Theanine is an amino acid found primarily in tea leaves, particularly green and black tea. It can directly affect brain function as a non-protein amino acid that can cross the blood-brain barrier.

It’s known for promoting relaxation without causing drowsiness, enhancing mental focus, and improving overall cognitive function. Unlike caffeine, which can cause jitters and overstimulation, L-Theanine creates a state of relaxed alertness, making it an excellent supplement for those seeking a balance between relaxation and focus.

The Science Behind L-Theanine’s Calming Effects

1. Promotes Alpha Brain Waves

One of the primary reasons L-Theanine is effective in promoting calmness is its ability to increase alpha brain wave activity. Alpha waves are associated with a relaxed but alert mental state, similar to what one experiences during meditation or deep relaxation. By stimulating alpha wave production, L-Theanine helps reduce stress and anxiety without causing sedation.

2. Reduces Cortisol Levels

Cortisol is the body's primary stress hormone, and high levels of it can lead to anxiety, difficulty concentrating, and even long-term health problems. Studies have shown that L-Theanine can lower cortisol levels, helping the body and mind stay calm under stressful conditions. This makes it an excellent supplement for individuals dealing with high-stress environments or chronic anxiety.

3. Enhances GABA, Dopamine, and Serotonin Production

L-Theanine influences the production of key neurotransmitters such as gamma-aminobutyric acid (GABA), dopamine, and serotonin. These neurotransmitters are crucial in mood regulation, relaxation, and overall mental well-being. Increased GABA levels help calm the nervous system, reducing feelings of stress and promoting a sense of peace and tranquillity.

4. Counters the Effects of Caffeine

For those who rely on caffeine for productivity but experience negative side effects such as jitters, increased heart rate, or anxiety, L-Theanine can be a game-changer. L-Theanine helps smooth out the stimulating effects of caffeine, promoting focused energy without the common side effects of overstimulation.

How L-Theanine Enhances Mental Clarity

Beyond its calming properties, L-Theanine also plays a vital role in cognitive function, improving concentration, memory, and mental clarity. Here’s how it works:

1. Boosts Attention and Focus

Studies suggest that L-Theanine can improve attention span and cognitive performance, particularly when combined with caffeine. Students and professionals often use this combination to enhance focus and mental sharpness without the crash associated with too much coffee.

2. Supports Neuroprotection and Brain Health

L-Theanine has antioxidant properties that help protect brain cells from damage caused by oxidative stress. Over time, oxidative stress can contribute to cognitive decline and neurodegenerative diseases such as Alzheimer's. By reducing oxidative stress, L-Theanine supports long-term brain health and cognitive function.

3. Enhances Memory and Learning

Research indicates that L-Theanine can improve memory retention and learning capabilities. Modulating neurotransmitter activity and promoting a relaxed yet focused state helps individuals absorb and retain information more effectively.

4. Reduces Mental Fatigue

Prolonged stress and cognitive overload can lead to mental exhaustion, making concentrating and processing information difficult. L-Theanine helps alleviate mental fatigue by reducing stress hormones and enhancing overall cognitive endurance, allowing individuals to stay sharp for more extended periods.

 

Leapfrog FOCUS

Formulated to sharpen responses for those under acute stress - think before exams, presentations or high pressure events - Leapfrog FOCUS can also help with enhanced memory, learning and neuroplasticity. It's a unique chewable combination of L-Theanine, Lactium, Lactoferrin and Vitamin B12 with effects that include mental resilience, clarity and calm (without relying on coffee). Read more about Leapfrog FOCUS here.