L-Theanine is the amino acid in green tea responsible for the difference between how tea feels and how coffee feels — alert, but without the edge.

Paired with caffeine, it forms one of the most consistently replicated combinations in the cognitive research literature.

What it supports

• Calm, alert focus — supports attention without sedation
• Takes the edge off caffeine — many people find it smooths out jitteriness
• Supports relaxation without impairing alertness during the day
• Often used in the evening to help wind down without grogginess

How to take it

A common approach is 200mg alongside your morning coffee, roughly a 1:1 or 2:1 ratio with caffeine. It can also be taken alone in the evening. It's well tolerated and non-habit-forming.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Talk to a qualified healthcare professional before starting any new supplement, particularly if you are pregnant, nursing, taking medication or managing a health condition.