Yo, good choice.
I ran regular Dermacrine for a month and it was cool. I was coming out of an injury (dislocated shoulder) so I wasn't looking for gains, wrather just recovery and keeping my build up.
It was cool, after the first few applications I could feel a tingly sensation in my sack, so to my knowledge it was working right off the bat! It made me feel like a god for two weeks. Great sense of well being, outgoing confidence, everything seemed perfect. But then on the 3rd week or so it started 'shutting me down' so to say. I was feeling really lethargic, tired, sick, etc. I tuffed it out for a week or so, but then I decided to run the sustain.
I'm currently on my 3rd week of sustain right now, and I feel fine. Sustain seems to balance everything, so I'm glad I have it.
Overall PP products seem great, I'll def run again, and def recommend to friends.
The only problem I've had with the derma aspects of these products is tanning.
I get really itchy, and my skin sometimes feels thin and burnt. As far as visual goes, there are some blotches here and there and a little off color around my chest area.
I wouldn't reccomend using derma products and tanning.. at all.
other than that, i'd give the Dermacrine and Sustain a solid 8.5/10 stars.