Cognition Coffee Research
L-Theanine: Evidence & Supplement Context
L-theanine is an amino acid naturally present in tea. It is often researched alone and with caffeine. Study results cannot be transferred automatically to a multi-ingredient supplement with an undisclosed L-theanine dose.
See how it relates to the reported Java Brain formula.
Health note: This is educational information, not medical advice. Supplement effects and interactions vary. If you take medication, have a medical condition, are pregnant/nursing, or are sensitive to caffeine, discuss supplements with a qualified clinician.