L-Theanine 200 mg 120 Capsules



L-Theanine is a non-protein amino acid found naturally in the green tea plant (Camellia sinensis). It is an effective GABA precursor and supports healthy relaxation without drowsiness. Because it can cross the blood-brain barrier, L-theanine helps increase brain dopamine levels and helps support a normal immune system. *

System Support

The L-Theanine 200 mg by Metabolic Maintenance helps to alleviate the symptoms associated with stress. These all-natural capsules contain an abundance of amino acid, a vital nutrient that is naturally produced in the body. The L-Theanine 200 mg by Metabolic Maintenance can help the body achieve a more relaxed state and:

• Helps to influence positive sleeping habits
• Aids in balancing the chemistry within the brain
• Reduces stress throughout the body by inhibiting the production of stress hormones
• Promotes optimal liver health after consuming alcohol

The L-Theanine 200 mg by Metabolic Maintenance is effective at increasing the breakdown of the acetaldehyde that is produced when consuming alcohol. These all-natural capsules can reduce the destruction property alcohol drinking can cause to the liver. The theanine will store up glutathione, essential for helping the body reverse potential liver damage caused from different degrees of alcohol abuse. These capsules can help to get you back on the road to optimal wellness by increasing your relaxation level while at the same time decreasing degrees of stress.

Supplement Facts

Serving Size: 1 capsule
Servings Per Container: 120 capsules

Amount Per Serving:

L-Theanine 200 mg

Other Ingredients: vegetarian capsule


One (1) capsule daily, or as directed by a healthcare professional. Best taken between meals.


For more than a quarter century, Metabolic Maintenance has been the choice of health care professionals who want the best for their patients. Using only the highest-quality ingredients and processes, we deliver products you can trust, exceptional value, and service that’s second to none.


Our products are based on the latest wellness research. Ingredients are sourced from the finest suppliers and tested for purity and potency. We manufacture our own products according to certified manufacturing processes; in fact, we were the first physician-exclusive manufacturer to earn NPA-GMP certification.


Recommend Metabolic Maintenance with confidence,even for patients with sensitivities. Our products are free of preservatives, fillers, binders, artificial ingredients or excipients. All two-piece capsules are vegetarian and we use amber, glass bottles. The vast majority of our products contain no animal products,wheat, gluten, egg, soy, peanuts, tree nuts, fish or shellfish—and the handful of exceptions are clearly marked.


We make it easy for you to provide the right supplements for your patients, and easy for them to comply.


Since 1984, superior customer service has been the foundation of our company. We’re committed to your patients’ health and your satisfaction.


To ensure freshness and optimum potency, we purchase raw materials and manufacture our supplements approximately every 90 days. We also adjust our prices more than once a year based on the current costs of fresh ingredients. If our costs go down, we pass the savings on to you.

The supplement and herbs on this website have not been evaluated by the Food & Drug Administration. These supplements are not intended to diagnose, treat, cure or prevent any disease. Please read our Terms of Use for Online Programs & Products.