Focus

Caffeine and L-theanine, the focus pairing

June 25, 2026 · Kai Melton

Caffeine gives you energy. Paired with L-theanine, it gives you focus. Caffeine on its own can bring jitters, a racing pulse, and an afternoon crash. L-theanine, an amino acid found in tea, smooths the energy into steadier focus.

Key takeaways

  • Studies that pair the two tend to use roughly twice as much L-theanine as caffeine.
  • PREOVA Energy and Focus Mints follow that pattern with 80 mg of natural caffeine and 120 mg of L-theanine per serving.
  • B6 and B12 are included for normal energy metabolism, and nothing else is added to pad the label.

Caffeine is not for everyone. If you are sensitive to it, pregnant or nursing, under 18, or taking medication, talk to your healthcare provider first.

References

  • Owen GN, et al. The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutritional Neuroscience, 2008.
  • Giesbrecht T, et al. The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutritional Neuroscience, 2010.
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