Brite is based on peer reviewed, double-blind, placebo-controlled clinical trials and studies:

[1] L-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance.

S.P. Kelly, M. Gomez-Ramirez, J.L. Montesi, J.J. Foxe

[2] The combined effects of L-theanine and caffeine on cognitive performance and mood.

G.N. Owen, H. Parnell, E. A. De Bruin, J. A. Rycroft

[3] The effects of L-theanine, caffeine and their combination on cognition and mood.

C.F. Haskell, D.O. Kennedy, A.L. Milne AL, K.A. Wesnes, A.B. Scholey

[4] Efficacy of a high-concentration full-spectrum extract of Ashwagandha root in reducing stress and anxiety in adults.

K. Chandrasekhar, J. Kapoor, S. Anishetty