Clostebol acetate ( BAN ) (brand names Macrobin , Steranabol , Alfa-Trofodermin , Megagrisevit ), also known as 4-chlorotestosterone 17β-acetate ( 4-CLTA ) or as 4-chloroandrost-4-en-17β-ol-3-one 17β-acetate , is a synthetic , injected anabolic-androgenic steroid (AAS) and a derivative of testosterone that is marketed in Germany and Italy .    It is an androgen ester – specifically, the C17β acetate ester of clostebol (4-chlorotestosterone) – and acts as a prodrug of clostebol in the body.   [ additional citation(s) needed ] Clostebol acetate is administered via intramuscular injection .  
Testosterone Propionate Many consider propionate to be the mildest testosterone ester, and the preferred form for the dieting/cutting phases of training. Some will go so far as to say that propionate will harden the physique, while giving the user less water and fat retention than one typically expects to see with a testosterone.
During a typical cycle one will see action that is consistent with a testosterone. Users sensitive to gynecomastia and water retention may therefore need to add an anti-estrogen like Arimidex, Femara or Aromasin. Those particularly troubled by gynecomastia may find that a combination of Nolvadex and Proviron works especially well at preventing/halting this occurrence.
Melting Point: N/A
Manufacturer: Negma (never released), Underground Labs
Effective dose: 500-750mcgs/day
Active Life: 4-6hours
Detection Time: Unknown (never tested in humans)
Anabolic/Androgenic Ratio (estimated):12,000+/6,000+