I run it every two months, though not at a high dose. Half a milligram for twenty days.
I'm curious if anyone here has tried Epitalon more often than the usual twice-a-year suggestion, mainly to help with sleep. About six weeks back I did a ten-day run stacked with DSIP and Selank/Semax, though I kept the last two going longer. Sleep got noticeably better during that stretch, with more deep sleep, steadier scores, and fewer awakenings. Because it was a stack it was tough to tell how much Epitalon drove the change. After stopping Epitalon I kept the other two and sleep held steady for a while, then started slipping back about one to two weeks ago. I began another Epitalon round four nights ago and the last two nights already look better, though not quite as strong as the first time. Most sources say twice a year, but I've seen mentions of more frequent use such as the first ten