Suntheanine® L-Theanine 200 mg: Mental Calm Without Drowsiness, Concentration and Cognitive Clarity, Stress Management and Sleep Support – Premium Amino Acid For Neuro-Emotional Balance

Suntheanine® L-Theanine, 200 mg, Swanson is a premium dietary supplement formulated with Suntheanine® L-Theanine, a patented and well-studied form of L-theanine, a natural amino acid found especially in green tea leaves (Camellia sinensis). L-theanine is appreciated for its unique capacity to support mental relaxation without inducing drowsiness, contributing to a balance between calm and alertness. In this sense, the product is addressed to people who face stress, mental tension, agitation, mental overexertion or concentration difficulties, but who want to maintain their energy and productivity throughout the day.

In the body, L-theanine is investigated for the way it influences neurotransmitter activity and brain waves associated with the state of relaxation (especially alpha waves). Unlike classical sedatives, L-theanine is notable for its capacity to favor a state of calm vigilance, useful both in contexts of intense intellectual work and in moments when emotional tension affects performance. Additionally, L-theanine is frequently associated with sleep support, especially when insomnia is triggered by repetitive thoughts or mental hyperactivation, without "forcing" the body, but by supporting natural relaxation mechanisms.

Suntheanine® is a standardized form of L-theanine, frequently used in clinical studies and appreciated for consistency and purity. Each serving provides 200 mg Suntheanine® L-Theanine, a concentrated dose, useful for rapid support of mental comfort on demanding days. L-theanine can also be relevant for people who consume caffeine and experience unwanted effects such as nervousness or psychogenic palpitations, as it is often associated with "smoothing" the response to stimulation, while maintaining clarity and focus capacity.

In modern life, constant stress can affect multiple systems: sleep, appetite, digestion, immunity and emotional balance. Adaptive support for the nervous system can contribute to maintaining well-being and preventing mental exhaustion. Suntheanine® L-Theanine Swanson integrates into a routine oriented towards cognitive performance, relaxation, emotional balance and stress management, through a gentle, natural mechanism, without the sensation of "slowing down" or lack of energy.

Detailed Benefits of Suntheanine® L-Theanine 200 mg

• Mental relaxation without drowsiness and reducing mental tension

One of the most appreciated effects of L-theanine is the capacity to induce a state of calm without reducing vigilance. This combination is valuable for people who must remain active and focused, but face stress, restlessness or internal agitation. L-theanine is associated with supporting alpha waves, correlated with a relaxed but alert mental state – similar to a state of "flow" or light meditation.

Through Suntheanine® supplementation, the goal is:
✅ reducing the sensation of mental "pressure" and tension
✅ emotional calm, without sedation and without energy decrease
✅ supporting a state of balance during demanding periods

• Concentration, attention and cognitive clarity on busy days

Mental overexertion can reduce attention capacity and can fragment focus, especially when stress and fatigue increase. L-theanine can contribute to a more organized mental state, in which attention is more stable and thoughts are easier to manage. Therefore, it is frequently used by people who work intensely intellectually, study or need consistent cognitive performance.

Pursued benefits include:
✅ better focus and reducing "mental noise"
✅ clarity in decision-making and in demanding activities
✅ supporting productivity without aggressive stimulation

• Stress management and support for the body's adaptive response

Stress activates neuroendocrine responses that can lead to irritability, tension, fatigue and relaxation difficulties. Over time, this type of persistent activation can affect sleep and general state. L-theanine is studied for effects on the balance of neurotransmitters involved in stress and relaxation, supporting the body's capacity to return more easily to a state of calm.

Pursued effects include:
✅ supporting resilience to stress and mental pressure
✅ improving well-being during periods of overexertion
✅ reducing emotional reactivity to stress stimuli

• Support for sleep and nighttime relaxation, especially in mental hyperactivation

For many people, sleep difficulties are not related to physical fatigue, but to a mind "that won't stop": repetitive thoughts, worry, excessive planning. L-theanine can support the transition towards relaxation, contributing to a calmer state before bedtime. By calming mental activity, it can support perceived sleep quality and the sensation of recovery.

In this sense, it can support:
✅ relaxation before sleep, without heavy sedative effects
✅ reducing mental agitation that delays falling asleep
✅ a more "clean" rest, with more balanced awakening

• Balancing caffeine effects and supporting "clean" energy

Caffeine can increase energy and vigilance, but sometimes produces nervousness, agitation, psychogenic palpitations or irritability, especially in sensitive people. L-theanine is often associated with a more balanced response to stimulation, contributing to reducing caffeine-associated anxiety "peaks", while maintaining clarity and work capacity.

Pursued benefits include:
✅ more stable energy and more uniform focus throughout the day
✅ reducing the sensation of "internal tremor" and tension associated with stimulation
✅ support for mental performance without overstimulation

• Supporting emotional balance and mood

Mood is influenced by neurotransmitters, sleep quality and stress level. When stress increases, irritability, emotional sensitivity and decreased frustration tolerance appear more frequently. Through its mental calming effect, L-theanine can contribute to a more consistent mood and to a better perception of emotional control in demanding situations.

The goal is:
✅ emotional balance and mood stability
✅ reducing irritability associated with stress and fatigue
✅ supporting mental well-being throughout the day

• Support for performance in activities with pressure (work, exams, presentations)

In pressure situations, the body can enter a state of excessive alertness, which can affect working memory, verbal fluency and concentration capacity. L-theanine, by supporting calm vigilance, can contribute to more stable brain function in contexts of acute stress, facilitating better performance without mental block.

Pursued benefits include:
✅ reducing "paralyzing" emotions and agitation before events
✅ supporting clarity and communication in demanding contexts
✅ maintaining a state of active calm, useful for performance

Suntheanine® L-Theanine, 200 mg, Swanson offers a concentrated and standardized formula for relaxation without drowsiness, concentration and emotional balance, supporting stress management, sleep quality and mental performance through a gentle mechanism, adapted to the intense pace of modern life.

Directions for Use

As a dietary supplement, take one vegan capsule per day with water before meals.

Other Ingredients

Rice flour, hypromellose (vegan capsule), magnesium stearate, silica.

Warnings

For adults only. Consult your healthcare provider before using this product or any other product if you are pregnant or nursing, taking medication or have a medical condition.
Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.