The reason people would use this instead of tren is because of this.
Tren Anabolic/Androgenic 500/500
Supposedly the most powerful steroid available.
How much of that is true I don;t really know. There is conflicting info. People say those numbers are blown out of proportion. What is fact though is the product is very powerful. I will be a guinea pig in this one and report back. (Cautiously mind you. I value my health)