Wouldn't that actually be more objective since you'd be avoiding any kind of placebo effect as you weren't expecting any effects on memory?
I'm sure this is a great product and an alternative to a "cup of coffee", but it's clearly not a caffeine alternative. Which is fine, as long as people understand what they are buying. The "natural caffeine" listing is 80mg for an 8g serving on the website. So the transparency is good.
This is the product I used to eliminate coffee. It has no coffee.
https://lairdsuperfood.com/products/performance-mushrooms?va...
I am looking for a good lion's mane supplement in the US too but I haven't found a good one yet.
Real Mushrooms is the only mushroom supplier I trust. (No affiliation, you can find discussions about them on Reddit)