Microbial catabolism of phytosterol side chains yields C-19 steroids, C-22 steroids, and 17-ketosteroids (. precursors to adrenocortical hormones and contraceptives ).     The addition and modification of functional groups is key when producing the wide variety of medications available within this chemical classification. These modifications are performed using conventional organic synthesis and/or biotransformation techniques.  
Steroids are usually taken in a 2 or 3-month cycle, so as to lessen the burden they present to the body and elicit optimal muscle gains. After the cycle has been finished, the user needs to start a post cycle therapy which has the purpose of restoring the user’s body hormonal balance. In simple terms, after the user has discontinued steroid usage, his blood testosterone levels start to rapidly drop in the following weeks. If the post cycle therapy is not employed, it could take months for the testosterone levels to rise to their previous range (and in severe cases it never returns o normal), which can cause loss of all the muscle the user has gained during the cycle, as well as severe depression, lack of libido and all kinds of psychological effects.
During the next 2 weeks you can expect to continue shredding fat at pretty much the same rate as the first 2 weeks. I’d estimate another 2% body fat loss during this time frame, totaling a 4% loss over 4 weeks. You might begin to sweat considerably more during your workouts in these 2 weeks, as the intensity of your workouts is likely to increase due to the thermogenic effect of clenbutrol building up in your system. Don’t be surprised if you start performing supersets/trisets on a regular basis. The reason clenbuterol can make you pour with sweat is due to the thermogenic affect it has . raising your body temperature.