So is their much difference between the brands of Clen, I have used SIS clen in the past. However, my current supplier has a choice of Balkan or SIS with the Balkan being a lot cheaper (tbh being a student cost does play a factor).
I know SIS works however never tried Balkan. So to summarise does brand matter much?
I know SIS works however never tried Balkan. So to summarise does brand matter much?