I, personally, will use Hookers method of staying on and using benedryl at week 3. If you were to compare the 2 days on/2 day off vs 2 weeks on/2 weeks off; 2 days on/2 days off would leave more clen in your system, wouldn't it? Let's say you used clen at 80 mcg per day. At the end of 4 weeks your results would be this: 2 days on/2 days off would have almost double the amount of clen in your system (about 840mcg) when compared to the 2 weeks on/2 weeks off (about 480mcg). I based this off a half-life of 36 hours. It is a very rough estimate. I might be way off on this one, so could someone help me out?