Hi guys, was just wondering if anyone has tried the supplement pqq, please? Brands and dosages and how long you took it and with what would be helpful to know. I understand it makes new mitochondria but it doesn't seem to get mentioned much alongside other mitochondrial supplements, which I've generally tried. I wondered if it could be a slow burner that takes a while to have a noticeable effect. Looking for something to help with brain fog and improve mental energy?