1-T contains the naturally occurring compound 1-androsterone which is one hydrogen away from testosterone. The nomenclature for 1-T is Androsta-1-ene-3b-ol,17b-one. 1-T is a pro-hormone that requires just two reactions to become its target substance.
Enzymes known as 17b-hydroxysteroid dehydrogenase and 3b-hydroxysteroid dehydrogenase act upon this molecule to make efficient amounts of 1-testosterone.
That particular target substance can last in the body up to two hours and is a derivative of dihydrotestosterone (DHT); however it cannot become DHT directly. That makes this extremely active on the androgen receptor, probably giving 1-testosterone its reputation for being more anabolic than testosterone. Although it is non-methylated it is well absorbed orally and converts directly to 1 testosterone.
Expect mild estrogen conversion with this compound. This means that the gains made will be very lean due to the lack of water retention, but you can expect good strength gains, hard, dense muscle mass.