Parabolan is trenbolone cyclohexylmethylcarbonate. The half life of a steroid ester is mostly determined by its ratio of fat solubility to water solubility: the longer chain the ester, the higher this ratio, and the longer the half life. This kind of carbonate could be most carefully compared with an enanthate ester; the half life is probably a little less than week.
An amp (76 mg trenbolone cyclohexylmethylcarbonate) of Parabolan Reviews is similar only to 58 mg often bolone acetate. (The acetate is a bit more potent, more powerful per milligram, because the acetate ester is lighter and thus a higher percentage of the weight is trenbolone.)
The properties of Parabolan are the same as trenbolone acetate (Finaject) except for longer half life. While Finaject itself is no longer accessible, in some cases injectable preparations from Finaplix have been made. The substance is the same: trenbolone acetate.
There's no evidence in the literature, nor I believe practical evidence, that trenbolone has a special role in burning fat. Rather, it is an extremely potent steroid, being around three times as effective per milligram as testosterone esters. Because of this, any property which anabolic steroids have, trenbolone will illustrate more ardently per milligram.
I have found no sign in the scientific literature of special kidney toxicity with trenbolone. I know of numerous users, at doses of typically 50 mg/day, that have experienced no difficulties. There are yet anecdotal claims of kidney difficulties. It appears to me, nonetheless, that this is occurring only with athletes stacking an incredible quantity of drugs, and the way the blame can reasonably be put at trenbolone (truly at Parabolan, not trenbolone acetate) isn't clear.
It is also not clear that trenbolone consequences in any greater degree of increased aggression for a given quantity of anabolic effect than testosterone itself does. However, on a per milligram basis, it undoubtedly does. The substance doesn't cause uncontrollable roid rage regardless of the ballyhoo to that effect often seen.