nootropics stack


L-theanine is an amino acid (a building block for proteins) that is naturally occurring in green tea leaves. It is renowned for its excellent nootropic properties such as improving memory, enhancing the ability to learn, and providing a calming effect.

L-theanine has a very similar chemical structure to glutamate, an amino acid in our bodies that assists in the transmission of nerve impulses in the brain, and as a result, it provides a whole host of benefits as a natural supplement for brain health.



Nootropics are supplements, drugs, or functional foods that enhance cognitive functions. L-theanine is often recommended as a supplement for people who are suffering from memory diseases such as Alzheimer’s disease and dementia however it has been demonstrated that individuals with healthy brains benefit highly from its positive effects on the brain. It also has the remarkable ability to cross the blood-brain barrier which means that L-theanine is able to reach the brain directly.

L-theanine also has positive effects on stress levels and shown to increase dopamine and serotonin levels in the brain, which are some of the brain’s feel-good chemicals. This is why tea containing L-theanine, such as green tea and oolong tea, are effective at helping people relax.



L-Theanine has the ability to boost focus and enhance relaxation on its own but is most effective when combined in a stack with other nootropics.

  • L-Theanine and Caffeine Stack

L-Theanine has demonstrated impressive positive effects on mental performance when “stacked,” or combined, with caffeine.

The combination of L-theanine and caffeine has synergistic effects that promote enhanced cognition and attention.

For that reason, stacking L-theanine with caffeine is one of the most popular choices among those looking for a cognitive boost due to its simplicity, low cost, and effectiveness.

The effects of stacking L-theanine with caffeine include:

  • Improved memory
  • Enhanced focus
  • Increased motivation
  • Boosted mood
  • Reduced anxiety



Supplementing with L-theanine is considered extremely safe and has been designated as a GRAS (Generally Recognized as Safe) ingredient by the Food and Drug Administration in the United States. Some people report minor side effects, such as dizziness or headache, when taken with caffeine but are not widely reported.

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