I’m so happy that Na’vi have included in their range also the Lion’s mane powder. I have occasionally been experiencing brain fog, difficulties with focusing and poor memory. I trust that this is one of the best if not the best lion’s mane supplement available and am so excited with the notion that this is great help for my issues. After only three weeks taking it it may be too soon to expect a big difference, but I will write another review in a few months to report.