The first Tren A I have tryed with very little to no post injection pain. One week in, and im sweating hard all day and night, super aggressive, and already gaining strength. My appetite has gone up too, but any tren always does that too me for some reason. 50mgs ed and its beast mode time!!! Very smooth product,nothing is more discouraging then being crippled for days after a shot. That takes the enjoyment out of doin gear. This product will NOT give you pain the next day!!! Awesome Gear, will being trying there test prop next week, and will comment on that next.