For the off-season athlete there is no anabolic steroid more important or beneficial than testosterone. High levels of testosterone will promote significant increases in lean muscle mass and strength. This is assuming that the individual is consuming adequate calories. Compounds like Testosterone Propionate are not magical, you will still need to feed your body enough calories. During an off-season period of growth, this means total caloric intake will need to be slightly above maintenance. This will, unfortunately, promote body fat gain. However, the key to a successful off-season is gaining lean tissue while minimizing body fat gain to the fullest extent possible. By supplementing with Testosterone Propionate you will be able to achieve this more efficiently. High testosterone levels will promote a stronger metabolic rate. This is not a license to eat like there’s no end in sight, but you should be able to make better use of your calories.
The side effects of testosterone is usually dose dependent and the time period you stay on for. The side effects are well known and documented by now and we can discuss this at great length. Its become a bit of a boring topic to discuss and repeated in every article you read on testosterones. But lets mention them in summery. The list is as follows – aromatizing in the body to estradiol (estrogen) that can cause water retention, body fat gain and gynocomastia. You can combine an anti-estrogen like Nolvadex or Clomid to generally take care of most of these side effects. These anti estrogens can be alternated with a more effective aromatize inhibitor like Arimadex but only as an alternative and not for continues use (see the article under Sustanon to study the cholesterol and cardiovascular issues with aromatizing inhibitors). Oily Skin, acne and body/facial hair growth in men and woman is evident but also dose related and varies from individual to individual. Males who have a genetic predisposition to hair loss may experience accelerated male pattern balding. Testosterone does not have hepatotoxic effects and liver toxicity is unlikely.
A 2006 study determined that 1-testosterone has a high androgenic and anabolic potency even without being metabolized, so it can be characterized as a typical anabolic steroid. 1-Testosterone binds in a manner that is highly selective to the androgen receptor (AR) and has a high potency to stimulate AR-dependent transactivation . In vivo , an equimolar dose of 1-testosterone has the same potency to stimulate the growth of the prostate , the seminal vesicles and the androgen-sensitive levator ani muscle as the reference anabolic steroid testosterone propionate , but, unlike testosterone propionate, 1-testosterone also increases liver weight.