Reactions got faster, but only against the same people's own start
In 40 healthy adults, one 1 g dose sped reaction time by 9.4 milliseconds over their own score two hours earlier. No comparison put it ahead of placebo.
What the study found
A single 1g dose of lion's mane beat its own baseline, not placebo
Forty healthy adults took lion's mane, a caffeinated tea extract and a placebo on separate days. Two hours in, reaction time was 9.4 milliseconds faster than that arm's own starting point. No reported comparison put lion's mane ahead of placebo; the one between-arm result favoured the tea.
The caveat · Tracked for two hours, no longer
Placebo improved on its own baseline too, which is what within-arm comparisons look like when practice and expectation are doing the work. Nothing here runs longer than two hours. The sponsor sells the tea extract used as the comparator.
What we don't know
Placebo improved on its own baseline too, which is what within-arm comparisons look like when practice and expectation are doing the work. Nothing here runs longer than two hours. The sponsor sells the tea extract used as the comparator.