Since the sus450 is out of the question...

[Chase1984]

What's the next highest concentration sus is made in? I know i can't ask for any actual sources but I'll try and figure it out

 

[kaindawg]

300 is the highest iv seen and used with results

 

[MCMOW]

sus4fifty (450mg per ml) axio
havent tried it yet but I have heard great things bout it. I just posted a thread for a review from anyone here thats tried it. I have used there sust325 with great results though.