I've been running 9 caps daily, 3/3/3 taken with SD and or EPI. At about the 4 week mark of SD the lethargy did finally start to set in, but without M1-D Black lethargy set in at about week 2 of the previous cycle. Libido has been fantastically high while on M1-D Black, something that no other supp, i repeat: no other supp has been able to achieve. Granted, i'm running a high dose as i have a nice stock of M1-D Black, but the results are legit. Now that i've cycled off SD and it's pretty much out of my system, M1-D Black + EPI is simply fantastic. My drive, strength, libido, mood, aggression is top notch.