Testosterone, like many anabolic steroids, was classified as a controlled substance in 1991. Testosterone is administered parenterally in normal and delayed-release (depot) forms. In September 1995, the FDA approved testosterone transdermal patches (Androderm), and many transdermal forms and brands are now available including implants, gels, and topical solutions. A testosterone buccal system, Striant, was FDA-approved in July 2003; Striant is a mucoadhesive product that adheres to the buccal mucosa and provides a controlled and sustained release of testosterone. In May 2014, the FDA approved an intranasal gel formulation of testosterone (Natesto). A transdermal patch (Intrinsa) for hormone replacement in women is under investigation; the daily dosages used in women are much lower than for products used in males. The FDA refused approval for Intrinsa in 2004 stating that more data regarding safety, especially in relation to cardiovascular and breast health, were required.
A Testosterone Propionate cycle during a cutting phase is an excellent way to ensure muscle mass isn’t lost during a diet. You will also find it enhances fat loss efficiency and produces a stronger more defined look. As with the off-season Testosterone Propionate cycle, the total stack and doses may need to be adjusted in order to meet your needs; again, this is a sample guide. It is also important you consult with your doctor to ensure you’re healthy enough for use. Important Note – This type of Testosterone Propionate cycle will not produce less or more water retention compared to plans that might contain Testosterone Cypionate or Testosterone Enanthate in the Propionate versions place. It’s often assumed by many steroid users that Testosterone Propionate will yield less water retention than the aforementioned versions but that’s a myth. Testosterone is testosterone and does not become active in the body until the ester has been removed. The reason many believe it leads to less water retention is a very simple one; most given extra attention to their diet and estrogen control during a cutting phase, and this will always lead to less water retention in a Testosterone Propionate cycle or any cycle.
Testosterone propionate was introduced in 1937 by Schering AG in Germany under the brand name Testoviron .  It was the first ester of testosterone to be introduced,  and was the major form of testosterone used medically before 1960.  In the 1950s, longer-acting testosterone esters like testosterone enanthate and testosterone cypionate were introduced and superseded testosterone propionate.  Although rarely used nowadays due to its short duration,  testosterone propionate remains medically available and is still marketed in the United States .