Collection: L-Theanine

An amino acid found in tea leaves, known for promoting calm focus. Often paired with caffeine to smooth out jittery energy.
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Areas of Support
CalmCalm
Cognitive FunctionCognitive Function
FocusFocus

Areas of Support

CalmCalm
Cognitive FunctionCognitive Function
FocusFocus

What is L-theanine?

L-theanine is an amino acid found naturally in tea leaves, particularly green tea. It is commonly included in supplements designed for focus, calmness and cognitive wellbeing. Because it is non-stimulatory, L-theanine is often used on its own or paired with caffeine in products intended to support attention and mental performance without relying solely on stimulants.

What to look for in L-theanine products

  • Clearly disclosed L-theanine content rather than proprietary nootropic blends.
  • Lower doses are often included alongside caffeine, while standalone products typically provide higher amounts per serving.
  • Products combining caffeine and L-theanine should state the amount of both ingredients so the balance is clear.

Product Highlights

The ingredients behind the product, and the role they’re intended to play in the body.

How much L-theanine do supplements contain?
Many L-theanine products provide between 100mg and 200mg per serving, although formulations vary. Comparing the actual amount of L-theanine is often more useful than comparing capsule size, serving count or marketing claims.
Why is L-theanine often paired with caffeine?
Should you choose L-theanine on its own or with caffeine?
How quickly does L-theanine take effect?