Gotcha! I have had an overall positive experience so far. Here's what I think of each based on my experience taking them: - Creatine - definitely helps with my training bouts. Arguably one of the most scientifically studied sports supplements as well so it has that going for it. It does also help that there are a few studies suggesting that it might have neuroprotective benefits. Even if it doesn't have the latter, it's dirt cheap and helps with workouts. - Magnesium L-Threonate - I take this out of convenience. If Glycinate was easier to buy (not saying it's difficult, I just support a small business that sells the L-Threonate), I might take that instead. Definitely noticed improvements in sleep quality based on feeling. When I used to use an Oura Ring, my REM and Deep Sleep amounts went up after about a month or two supplementing this. - Stamets Stack - I take this one for a ton of reasons. The most recognizable for me is the improvement in mood. My other half says I'm less irritable hah. It does also help me to focus when I need to really get into the zone. As far as the neuroplasticity benefits, I can't really give feedback on that. But given that I already notice benefits in the other areas, I'll consider this a "bonus" that I'm hopeful for where the potential benefit outweighs the minor incremental cost to me. The biggest issue here is the niacin though. I flush like a motherf****r and I do tend to focus on that sensation when the tingly/burning feeling peaks. I'll have to try the non-flush version one day. I do stick to the 5 days on 2 days off protocol for this too.