MHP SELLS A SARM
Essentially it's supposed to have all the benefits of testosterone but without all of the negative side effects such as HPT shut down. This is extremely cutting edge new shit so not a lot is really known about it.
I haven't had a chance to read the full study yet, but where did you see that it doesn't shut down the HPTA? From everything I saw it was used as a hormone replacement for orchidectomized patients/lab rats. Being orchidectomized means your lacking the T in HPTA to begin with so it can't very well shut down the production that you don't have. It does say that is is non 5-a-r substrate which means you don't have to worry about DHT sides such as prostate problems and balding. Sounds interesting for sure, but I don't see how it could be non suppressive if it is androgenic. As with all other androgens, the suppression may be limited based on it's strength, however, by their very nature they are going to suppress the body's natural production.