PQQ 20mg Capsules
Why it's first: the standard entry point — a full 20mg serving at the legal ceiling, using the authorised disodium salt form, with a one-month supply that lets you try it without committing to a quarter. UK manufactured, independently batch tested, CoA on request.
Trade-offs: per day it costs more than the three-month pack below. If you already know you want to run PQQ for a while, the larger pack is the better buy and we'd say so.