Man I'm done with you. I don't know if you didn't know but your liver does the work of sulphate convertion enzyme because it actually has the enzymes to do it. That is why oral minoxidil works on everyone.
The N,O-sulfate of minoxidil (Mnx) is the active agent in producing the vasodilation and the hair-growth stimulating responses observed with Mnx treatment. In this report, Mnx sulfation activity was assayed in cytosol prepared from several normal human livers, and Mnx sulfation was shown to...
pubmed.ncbi.nlm.nih.gov
Next time you talk, go to pubmed.gov page (yeah the page you suggested me to search for information).