L-Theanine - Certification Image


L-Theanine is a naturally occurring, non-protein amino acid found in tea that easily crosses the blood-brain barrier and can support the activation of alpha waves. L-Theanine increases levels of neurotransmitters like gamma-aminobutyric acid (GABA) and serotonin that regulate mood and relaxation. By modulating these neurotransmitters, it reduces neuronal excitability, promoting a calm and focused state. It also stimulates alpha brainwaves associated with a relaxed and focused mentality.

Subscribe & Save
One-time Purchase

Free shipping on orders over $75 | Money back guarentee

Everything at a Glance

GMO Free Gluten Free

Impeccably High Standards

Quality down to the last drop and detail

L-Theanine is an amino acid that is not common in the diet and mainly found in green tea. L-Theanine promotes relaxation while maintaining alertness along with supporting healthy cognitive function.

Momentous L-Theanine capsule

Green Tea

Expert Verified

Protocol Integration

Take 30 to 60 minutes prior to bedtime

Clinical Research

The research on L-theanine is emerging, with multiple studies confirming its benefits for relaxation, focus, and cognitive performance. The efficacy and safety of L-theanine makes it a trusted choice among experts in human performance and cognitive health.

Expert Verified
Dr. Andrew Huberman Dr. Andrew Huberman

From Dr. Andrew Huberman, host of the Huberman Lab podcast

"100 to 400 milligrams of L-theanine taken alone or in combination with the other supplements mentioned in the stack allows many people to fall asleep, sleep really deeply, and feel much more refreshed the next day."

What to Expect with L-Theanine

When to Use
1 x capsule 30-60 minutes prior to sleep
Onset Time
2-4 days
Results may vary, but many individuals typically experience benefits within a few days of regular use, while others may require longer to see significant changes.
Expected Results
Sleep Cognitive Function
Results may vary from person to person, but many users report experiencing the benefits within the first few days of consistent use. For best results, incorporate L-Theanine into your daily routine to maintain its positive effects on your overall well-being.

Ingredients We Can Be Proud of

Ingredients We Can Be Proud of

Frequently Asked Questions