Also known as 1-Andro or 1-DHEA. It converts to 1-Androstenediol and then converts to the well known anabolic 1-Testosterone. Studies have been done on 1-Andro at Texas A&M, and the results showed that this compound can have a big impact on gaining lean mass and losing fat. 10 pounds in muscle were gained on average and the group taking it easily increased their squats, bench, and deadlift numbers. This prohormone is non-methylated, meaning that is will not convert to DHT or estrogen, and it is less taxing for your body.
Another extremely popular one on the market in 2016, this one is also known as 4-Andro. It is similar to 1-Andro because it also undergoes a two step conversion process, but it becomes real testosterone in your body. It converts to 4-androstenedione and 4-androstenediol first. 4-Andro is able to balance out the effects of 1-Andro, which is why they are often stacked together. It is possible for 4-Andro to convert to estrogen, so it is very important to take a post cycle therapy supplement to get your natural levels back to normal.