T'renbolone' hexahydrobenzylcarbonate' (brand name P'arabolan', H'exabolan'), or t'renbolone' cyclohexylmethylcarbonate', also known as estra-4,9,11-trien-17β-ol-3-one 17β-c'yclohexyl'methylcarbonate', is a steroid raw powder of the 19-nortest' group and an androgen ester - specifically, the 17β-h'exahydrobenzylcarbonate' ester of t'renbolone' - which was marketed in France for human clinical use. It has proven to be an excellent product for promoting size and strength in the presence of adequate protein and calories, promotes body tissue building processes and can reverse catabolism.It acts as a long-acting prodrug of t'renbolone' when administered via intramuscular injection.

T'renbolone' Hexahydrobenzyl' Carbonate' is efficient for the fast build-up of strength and muscle mass, providing bodybuilders and athletes outstanding results in a relatively short time period. It is considered to turn the food to muscle and not to fat. T'renboxyl Hexa' does not convert to estrogen and it provides no noticeable water retention.

The amount of t'renbolone' in 76 mg of T'renbolone' Cyclohexylmethylcarbonate' is equivalent to the amount of t'renbolone' in only 58 mg of T'renbolone' A'cetate'. The acetate' is a little more potent, more effective permilligram, because the acetate' ester is lighter than the cy'clohexylmethylcarbonate' ester; therefore a higher percentage of the weight of T'renbolone' A'cetate' is t'renbolone'. A similar comparison also can be made with the other long lasting esters of t'renbolone': enanthate' and h'exahydrobenzylcarbonate'.

T'renbolone' h'exahydrobenzylcarbonate' was generally administered in a clinical dosage of 3 ampules per month. Therapy was initiated the first month with all 3 ampules given over the first 15 days. During the subsequent 3 months, one injection (76 mg) was given every 10 days. For physique- or performance-enhancing purposes, t'renbolone' h'exahydrobenzylcarbonate' is most often administered at a dosage of 152-220 mg per week. The drug would be taken in cycles ranging from 6 to 12 weeks. Although a weekly administration schedule would be more than sufficient, athletes usually injected a single ampule (76mg) at a time, and the total amount would be spread evenly throughout the week.