Trenbolone acetate, is the scientific name of the chief ingredient in Finaplix, which is a very widely popular steroid among bodybuilders. Trenbolone acetate is a really potent steroid that is put in the Class I variety. It binds to the androgen receptor and lives a very short life of usually a couple days, which is great for getting around the drug tests for those who might need to. Tren is extremely potent, almost three times as powerful as testosterone esters, and it also cuts fat off of the body whilebuilding muscle mass. Trenbolone acetate  is also an appetite stimulator, and does not result in any water retention. This is why many bodybuilders take advantage of Tren right before they have to do a show, because it's out of the system quickly and doesn't involve any water retention. And lastly, using Tren usually results in a huge strength increase for every major lift. Tren is no doubt one of the most beneficial choices when deciding on an anabolic steroid, which is why many bodybuilders desire it.

Comment from Expert

Users can expect rapid gains in muscle size and strength from the use of Trenbolone. The steroid is often use in cutting cycles due to its ability to cause hardening of the muscles, and positively changing a persons body composition. Trenbolone is also said to be responsible for some level of fat loss, but we should not rely on the compound for this benefit. Novice users may wish to use the faster Acetate ester due to its faster half life, and therefore the ability to cause a quicker drop in blood levels upon ceasing the drug incase any undesirable side effects become present. 75mg-100mg each other day is common, and is often stacked with testosterone propionate. Greater dosages is sometimes administrated by more advanced users, often 500mg + per week. Due to its high androgenic characteristics, Trenbolone is not really a suitable steroid to be taken by women.
The most common side effects of it :
Coughing; getting a metal taste in mouth. Low level in libido, insomnia,  give to skin a yellow tinge, acne and water retention.