Testosterone propionate is a synthetic form of testosterone, which is the primary male sex hormone

Testosterone undecanoate is a long-acting ester of testosterone that can be administered via intramuscular injection or as an oral capsule. It provides a sustained release of testosterone over several weeks or months.

This is the most common form of trenbolone available. It has a relatively short half-life, requiring more frequent injections compared to other ester forms. It’s known for its rapid onset of action and can produce significant gains in muscle mass and strength.

Trenbolone enanthate has a longer half-life compared to trenbolone acetate, allowing for less frequent injections. It provides sustained release of the active drug into the bloodstream, resulting in more stable blood levels over time.

This ester has a longer half-life than acetate but shorter than enanthate. It’s less commonly available compared to the other esters and is known for its use in bodybuilding and athletic circles.