It's downregulated after the first dose. The studies have always shown this. We desensitize to all gh secretagogues to some degree after the first dose. The studies showed the first doses to have highest gh output, however with prolonged use gh output dropped but igf levels rose. Hexarelin after 16 weeks released approximately half the gh output it did on day one. It's just the nature of the beast, why even worry about it? Take it everyday, it's not like it stops working, you guys are over thinking desensitization and half lives in my opinion. Other then trying to save money or lessen sides, there is nothing beneficial about EOD over ED. ED is more effective hands down, anyone who has tried both can tell you this. Just like guys were trying to say gh was more effective EOD or 3x a week. Bullshit, GH is best used 3x a day not 3x a week lol. Take it everyday if you want to maximize results in my opinion.