Please see the profile on Testosterone Enanthate for a general discussion of all testosterones.

Since free testosterone in the body will last for only a few hours the process of esterification is applied in order to lower the water solubility of the steroid and increases the fat solubility. Cypionate is a popular ester used with testosterone as it releases a fairly steady level of the parent hormone over the course of roughly 10-12 days.

Testosterone is considered a staple of almost all steroid cycles. Testosterone Cypionate is one of the most popular choices for a testosterone product as it has a reputation for being very effective. In practice, there is very little difference between testosterone cypionate and testosterone enthanate and both products can, for the most part, be considered interchangeable. Testosterone cypionate stacks very well with practically any other compound oral or injectable making it the ideal stacking agent.

Obviously, no drug as powerful as testosterone is without the potential for serious side effects as well, however, test side effects can generally be managed very well and are most often dosage related. That is, the higher the dose of testosterone administered the more likely it is that the user will experience side effects.

Testosterone Cypionate converts to both estrogen and dihydrotestosterone. Estrogen buildup can result in excess water retention as well as gynecomastia (bitch tits) in addition to a suppressed HPTA (hypothalamic-pituitary-testicular axis). Too much water retention or edema can also contribute to a raise in blood pressure. Using testosterone cypionate may also result in an elevation of DHT, resulting in possible acne and/or male pattern baldness.

Typical doses of testosterone cypionate are from 250mgs-1000mgs/week with some users even going much higher. Anecdotally, there does not seem to be much benefit of going lower than 250 mgs/week and there is a definite consensus that a more effective dosage minimum is 500 mgs/wk. Higher doses absolutely result in more significant gains, however, more side effects occur as well. As a slow acting ester, testosterone cypionate may take a few weeks to build up blood concentration levels and conversely will certainly take a few weeks to leave the system upon cessation. Cycle lengths vary with upwards to 20 weeks and more not uncommon.

Very popular stacking options for increasing mass include using an oral like Anadrol (Oxymetholone) or Dianabol (Methandrostenolone) and another injectable like Deca (Nandrolone Decanoate) or Equipoise (Boldenone Undecylenate). Those seeking higher quality, albeit less dramatic, gains report good experiences stacking test cypionate with Trenbolone or Equipoise.

Testosterone Cypionate is produced by many reputable pharmaceutical companies such as Geneza Pharmaceuticals (GP Test Cyp 250), Sciroxx (Testodex Cypionate 250), Axiolabs (Testaplex C 200), British Dragon (Testabol Depot).