caffeine actually used to be banned by WADA at a certain level... looking it up 12mcg/ml in urine was the limit
which is apparently equivalent to 8 espressos... have to say even as someone with a pretty high caffeine tolerance 8 espressos is pushing it.
from
https://examine.com/supplements/caffeine/There appears to be a reliable and significant increase in power output (both weight lifting as well as cycle ergometer measurements) in both trained and sedentary persons with doses of caffeine exceeding 5mg/kg, assuming the subject is not caffeine tolerant. Tolerance, or lower doses of caffeine, are not as effective.
5mg/kg is actually a pretty heavy dose. would be 450mg for a 90kg person or like.. 4/5 espressos.
1-3 dimethyl in ds craze. its meth like. took the grape flavor for a while. stopped when i found out about the banned ingredient.
made a big difference in mental allertness and aggressiveness. i was on it when i got 455x1 paused everyday for 8 straight weeks. and some 475x1 when i felt stronger.
miss those days. post workout crash was also as good. i sleep afterwards so no biggie.
yeah 1-3 that was it.... derived from geranium seeds. i only used it a few times but yeah it was pretty good. old formula jack3d had the same ingredient. i imagine its pretty shitty for your body to use long term though. damn i was actually like 17 when i was using this stuff, kinda fucked up they were allowed to mass market it like they did.