uh, nope. unfortunately you have your steroid facts mixed up. there aren't any newly designed steroids available on the market that weren't made back in the 50's & 60's. when thousands of analogs of the three parent steroids were studied and published to find the perfect steroid to be used in medicine.
all the steroids available legal, and illegal, have published literature on them.
thg (the clear), this was what you are calling a designer steroid, when patrick arnold created this steroid, it was entirely new to the game, no previously published data on it.
Several steroids that resemble THG rather closely are mentioned in a patent from 1969 of the French pharmaceutical company Roussel-UCLAF, but nothing is published about the 13b,17b-diethyl-compound, THG.
but superdrol, pheraplex, dimethazine, cdma (halodrol), norbolethone, max lmg, ect, these are all forgoten steroids created during the big wave of synthesizing steroids to be better.
there isn't any legal steroids available on the market that havn't been previously synthesized and studied in the past by scientist like vida.
designer steroids is a bad term, steroids like superdrol, dimethazine, ect are gray market steroids, barely legal, but not new, or designer.
here is a more "proper" definition for designer steroids"
"The present meaning of the indication designer steroid has a more vulgar origin. The name has been introduced for effective anabolic steroids which could or can not be detected in routine doping tests"