Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia . 
The Tren is as strong as it gets, "forte" is the Italian for strong, and that is up to expectations, unlike other brands I've found to be rather "meh". I only use 200mg weekly and that is enough to meet either my bulking or cut needs, I believe most guys just use too much Tren, well not my take. The SP tren forte kept me strong and lean as I bulked, it lets me eat a beefy caloric surplus daily and yet I stay lean, only side is I get soo hot and sweaty during my workouts it's sometimes a problem, but other than that, I generally tolerate it well.
Trenbolone Acetate (Tren A) is a highly androgenic/anabolic steroid (AAS) and a potent agonist of androgen receptors which has been extensively used as a growth promoter. Tren A is a progestin and does not convert to estrogen. The effects of Trenbolone Acetate are increased weight gain, increased aggression, sweating, insomnia, increased muscle hardness, improved food conversion efficiency, decreased muscle RNA and DNA concentrations and decreased free cathepsin D activity in muscle. The half-life of Trenbolone Acetate in circulation is 24 hours.