My experience with Dermacrine Sustain was fantastic. I used it for PCT - post cycle therapy - from my last cycle which was a testosterone enanthate @ 600mg ew for 20 wks. I used to use clomid for PCT - post cycle therapy - but now I say "FUK THAT STUFF!" I should have used HCG - human chorionic gonadotropin - during cycle but I didn't. I used it after cycle at 500iu's for 10 days. Then I started the sustain. I've said this a thousand times and will probably say it another thousand times, sustain is the shit! I had absolutely NO CRASH feeling, NO loss of strength or size (well maybe a few pounds in water) and my sex drive was through the roof! I even felt like I was on again at different times. Clomid will NEVER be used by this bro again. Sustain should be the new standard for test PCT - post cycle therapy - , PERIOD! All the skeptics out there should just try it once and you will see what I mean. I was one of the skeptics and I was also a die hard clomid supporter. Then I figured I might as well just try the stuff. I had this idea in the back of my mind that no topical product could do what a pill could do. I was VERY mistaken. This stuff felt like it started working in days. After about 2 weeks my girlfriend was shocked at the size of my "loads". Peter North aint got shit on me!! and I owe it all to Dermacrine Sustain. I hope I've made my point. Good luck bro!