I have gone upto 60 mg a day no issues. I mix with TNE (50-75 mg) and 30 mg halo(commonly) with some preworkout drink and some heavy metal music on occasion for a few weeks at a time in addition to my normal aas use. I only do this on workout days. I have even done it for a weekend at a time just to get some wieghts up. I works great for about about a 2 hour boost.

Then again I think half the time I am taking halo I am taking m-test. there is only one underground lab I trust to provide real halo. although they make m-test too