About Theanine
L-Theanine is an amino acid found in tea leaves. It promotes relaxation without drowsiness and may support sleep quality when combined with other sleep aids. Generally well tolerated. No established RDA/UL.
What Theanine supports
- Promotes relaxation without drowsiness
- May support calm focus, especially paired with caffeine
- Can support sleep quality as part of a calming routine
How much Theanine to take
Clinical studies typically use 100–250 mg of Theanine. Common supplemental range; 200 mg is the most studied single dose for relaxation and focus.
- Effective range
- 100–250 mg
Clinical evidence
Moderate clinical evidence. Several clinical trials on relaxation and focus, most using 200mg; consistent but modest effects
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