This is the same as hdrol,all you would be doing is adding 25mg to your dose of hdrol.4-chloro-17a-methyl-androst-1, 4-diene-3-17b-diol is the same in both.Yea the halovar has some adding herbs in it to help with libdo ect.. Just use one or the other. If you feel like the InSLINsified Proprietary Insulin Mimetic 250.5 mg is going to help you out better,doubt it,but I like that there is fenugreek in it.It gives my libdo a little boost.Then go for the halovar.