I'm not talking about energy drinks, but taurine as powder. It makes circulation better at the capillars, has some relaxing effect, increases focus, increases lifespan, enhances sports performance, and whatever else you're taking, you will benefit from taurine. Your body produces it while young. It's food, not a stimulant. It's fine to take taurine without caffeine, but in case you overdosed caffeine, taurine ends the heart palpitations - this is also the reason why they put it in red bull. (source: https://www.gal.hu/en/spd/GAHUPZ20/GAL-Taurine-refill-pouch)
Then there are other tweaks, like iodine. At least 10mg per day. Your body needs it, loves it, it makes nerves snappy, quicker brain, quicker reflexes, optimalizes metabolism (through thyroid), detoxifies, and a LOT more. Children need it the most for brain development. It adds ~5 to newborn babies' IQ if the mother has proper iodine levels. And a LOT more. There is a protocol for starting taking iodine, selenium and iron levels must be sufficient, and extra C vitamin, magnesium, zinc, B2, B3 vitamins help a lot in the initial 6 months of taking iodine (Lugol's) Iodine made miracles to my life quality back 7 yrs ago, and I'm taking it since then.
(source: https://archive.org/details/iodine-why-you-need-it-why-you-cant-live-without-it-pdf-room/page/n3/mode/2up )
Omega3, lecithin, they are what your brain is made of. Take a lot.
Vitamins, minerals - everything has an optimal dose / level. Aim for it. A little excess of them very rarely cause problems. / except for selenium.
You probably know these, and have bio-hacking experience, I just wanted to point out what worked best for me.
THEN, when everything is in place what your body NEEDS, only then I would start experimenting with the extras, teas, microdosing these stuff, amphetamine, adderal, racetams, nootropics, etc.
Oh, how much I wish there was a forum-like app on Nostr where these topics could be discussed... Health topic is slowly being shadow-banned on the old internet, thanks to google, fb and govt's.
Any ideas for the forum?