things like prevention of senile dementia are hard to quantify
The research I've seen on Lion's Mane seems to show brain health benefits.  However, things like prevention of senile dementia are hard to quantify, so how to evaluate different brands for efficacy?  One way is to ask how the mushrooms were grown and processed.  This company claims to feed the fungi on things other than grains and to standardize for potency, so that's why I use them.
Rating: 4 stars