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While their clinical use is supported by an expanding body of research in functional and regenerative medicine, they are not FDA-approved for all indications
2mg vials carry the highest per-mg cost typically 1.5-2x higher than 10mg
We aimed to examine the effects of l-theanine, caffeine and their combination on sustained attention, impulse control and overall cognition in male children with ADHD in a randomized placebo-controlled four-way repeated measures crossover study
doi: 10.3168/jds.2006-811 55 SchusterSEwaldJKaletaC
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