Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial
Mori K. et al. · Phytotherapy Research · 2009
In 30 participants aged 50–80, 16 weeks of Lion's Mane powder significantly raised cognitive scale scores versus placebo; the effect declined 4 weeks after they stopped taking it.
PubMed PMID: 18844328