most people here block DHT, it doesn't stop their hairloss.
then they either go on the spironolactone/estrogen route, the cpa route, or the bica/raloxifene route. then they complain why they are still balding..
first of all spironolactone is an INSANELY weak anti androgen. 1mg of Spironolactone only blocks 0.6375ng/dl of total testosterone and it has partial agonist activity.
cyproterone doesn't reduce T that much but a lot more than spironolactone. Cyproterone by itself lowers T by around 40-70% and weakly inhibits the AR with partial agonist activity (albeit a lot stronger than spironolactone).
and then with bicalutamide. yeah this is the strongest route but I swear 90% of the people I see on bicalutamide on reddit are on letrozole/taamoxifen/raloxifene/arimidex all at the same time and at high doses bc they can't handle gyno. Most of the medical literature supports the theory that Bicalutamide blocks 8x more Total testosterone than spironolactone if not more. And with silent antagonist activity.
castration is tons stronger than all of these. the best plan is to use high dose cpa with low dose bicalutamide or Low dose bicalutamide with high dose cpa.
I tried bicalutamide for 4 months by itself and I regained my hairline but my top was still balding (although a lot slower than when I took dutas, spironolactone, estrogen, cpa by themselves or together).. I did some research and relative to breast tissue the dose I'm on should only be blocking around 600-700ng/dl of testosterone. My testosterone on blood tests went up from 913ng/dl to 1488ng/dl.
now I've added 12.5mg cpa to my regimen because at that dosage T (and E) Is reduced around 50%.
as for the partial agonist activity stuff. basically when u use bica/flut EVEN at low doses with a SAA, the AR is antagonized completely and partial agonist activity is irrelevant. this is because bicalutamide binds to the LBD of the AR and prevents coactivator activity in the presence of a transcriptionally inactive Androgen receptor. hence the AR becomes known as bicalhtamide-liganded AR