But it is legal for them to sell androstene capsules. The androstene, when taken up into the body, can be and is converted to some extent to testosterone. The percentage that is actually converted to testosterone is fairly low. For a woman, the percentage increase would be much higher, since they are starting from much lower levels. The jury is out on that one.
Many athletes feel androstene improves their workouts and like using it.
Others have found the only noticeable effects to be undesired side effects, and therefore have been unhappy with this supplement. Most of those who claim excellent gains are very heavy users who take the supplements many times per day however, such usage shuts down natural testosterone production which will then take some time to return to normal after stopping usage, even if the usage is only for a few weeks. This is something that preferably should be avoided. Androstene is the product that consumers are most familiar with, since it has been on the market the longest. Keeping track of which is which and understanding the differences is not difficult if we remember the three ways that steroids can be interconverted with testosterone by enzymes.