Boldenone undecylenate is an extremely versatile drug and, as such, combines very well with other steroids. An example of a great mass building stack would be 300-400mg/week of Boldenone undecylenate with 500mg of Sustanon or Testosterone Enthanate. For mass building purposes it can also be effectively stacked with Anadrol. This would result in significant gains in strength and mass without the additional side effects that would result from using the androgen alone. In terms of its use as part of a cutting cycle, Boldenone undecylenate combines very well with non-aromatizable steroids such as Trenbolone acetate or Winstrol. However, even the extremely low aromatization rate of these substances may be enough to cosine usage to bulking cycles only.
The first period of prostate growth, deemed developmental growth, is connected to puberty and the testicular secretion of androgens. This takes the prostate from its prepubertal dormancy to the normal sized, healthy, and functional prostate gland of an adult. During the early and mid adult years the prostate stays at this stage, despite the constant levels of high levels of androgens in the body. However, if androgens are blocked in the body then the adult prostate will shrink in size. This can occur by castration, or even by blockade of 5-AR (recall that DHT is the active androgen in the prostate).
Detection of halotestin and other such illegal anabolic steroids in sports is achieved by GS-MS identification of urinary excreted anabolic steroids and their metabolites. In a test for halotestin, a dry residue obtained from a urine sample is dissolved in dimethylformamide and a sulfur trioxide-pyridine complex and is heated with 1% potassium carbonate solution. Halotestin and many of its metabolites contain two polar hydroxyl groups, leading to intermolecular hydrogen bonding that increases their boiling point and reduces volatility. In order to attain a gaseous sample for GC-MS, the products of hydrolysis are extracted, dissolved in methanol and derivatised to form volatile trimethylsilyl (TMS) esters by adding N -methyl- N -trimethylsilyl-trifluoroacetamide (MSTFA) and trimethylsilylimidazole (TMSImi).