Tren is a Prohormone/Designer Steroid meant to promote vascularity, muscle hardness, huge gains in strength and minimal mass gain.
Tren is a progestin so if you take it, expect it to kill your libido (sex drive) and gynecomastia (bitch tits) are a high possibility.
You're blood pressure will aslo be through to roof.
Cycles of "Tren" usually run at around 25-30mg per day for a cycle of 4 weeks.
You will probably want to have a SERM (Nolvadex) for PCT.
You should also be at least 21 years old before using Tren, you could screw up your edocrine system for life.