To start, I am no expert in body building nor the human body itself. But, this is my experience with these two products.
I started taking the GNC amplified creatine 189 product about 2 months ago. I had never taken creatine before. I couldn't really tell any difference in my workout specifically related to the amp 189 because I was taking other supplements along with it. My workouts did improve however overall.
Reading what reviews there were, no one had a good opinion of amp 189 so I decided to grab some mono and try it out. I gave myself 2 days of no creatine or supplements to "clean things out" and then I loaded for a week. 20g of the mono for 5 days. I would take two scoops twice a day.
Taking the mono made me feel very weak and a little sick, but that went away once I worked out.
During my workout while taking the mono, I noticed that I would sweat a whole lot more than I normally did. I also noticed a decline in performance.
I switched back to the amp 189 on day 6 and the next workout went much better. I did not sweat hardly at all (on same workout routine) and I felt much better during and after the workout process.
In my personal experience the GNC amp 189 did provide some benefits over the regular mono.
To be fair, there may have been other factors involved that I am not aware of like the other supplements I was taking. I was taking 2g of arganine, no protein, 120mg ginko, 100mg milk thistle, 200mcg chromium pic., b complex and sometimes 100mcg biotin. I took the mono with a glass of cranberry or orange juice, I took the amp 189 with water or tea. I usually took the amp 189 after lunch and the mono after breakfast and after lunch.
Recap: With the mono I found decreased performance and increased amounts of sweating vs the amp 189.
I would like to give mono another shot since I still have it, any ideas what may have been wrong? Maybe the amp 189 is a better solution for me?