Using this agmatine, i might want to warn you, after you take the proper dosing for regularly for a few days, the pumps you get in the gym never really go away (seriously) and keep getting better!. I did however, notice a very nice boost in endurance from obviously a lactic acid buffering, as well. I can not say that I have noticed a huge strength increase because i am getting stronger on my bulk, so unsure if its the supplement. I have been impressed with the ability to knockout extra quality reps, makes me eccstatic. This Agmatine reminds me definitely a lot of those begining benefits and effects that you would have felt when starting creatine cycle. A lot of people would probably choose to buy some Hemavol or other product, instead ofa pure or bulk agmatine, which is great but, unfortunatley for me, the Hemavol left me prone and having to frequent and severe headaches..but still the AI Agmatine leaves me prone to infrequent and soemtimes mild headaches. However, it is A worthwhile trade off for the benefits outweight the small side effects, it might be genetics for side effects, not the product itself. This product definitely is not the cheapest and most inexpensive way to get some agmatine but, I prefer the pills over a powdered supplement bcause the conveinence preciseness of a single dose whch i like to control because of my headaches. But... Overall... This procudt is great for any stacking purposes, wanting a great pump, or anything.