Topical Dutasteride is the most powerful topical DHT inhibitor available today. It reduces up to 90% of scalp DHT by blocking the 5 alpha-reductase enzyme locally while causing a negligible decline on serum DHT levels which significantly reduce the chances of side effects commonly reported on...
I been using Topical Finasteride since 2010, as oral 1mg tablets gave me side effects. So back in 2010/2011 I used Genhairs 0.025% formulation for Topical Finasteride every 3rd day, which worked great and i took horny goat weed and zinc. I was able to maintain my hairloss, then a year later i built tolerance and now use 0.1% Topical Finasteride. Genhair and other compound pharmacies I used in the past have closed.
I now use MAA compound pharmacy, see below the thread I created for forum members and you can compound the Topical Finasteride at a lower dosage.