I guess for this to be a true experiment, I should list the other things that I use too and tell what Norwood I am.
I currently am a 2.5 or a NW3. My crown has shown signs of very, very minimal thinning for the last 2 years, but no one else would notice unless they were a couple inches from my head and I pointed it out to them. For the last 2 years, I have been maintaining on just Nizoral, Zinc shampoo & finasteride.
Current regimen
AM: Wash hair with Zinc Shampoo (DHS Shampoo contains Pyrithione Zinc 2%)
AM: Apply Clobetasol Propenate to temples/NW2 area and crown
AM: 5mg finasteride M/W/F
AM: (to be added in tomorrow) Apply Retin-A to temples/crown/NW2 area in combo with the Clobetasol
PM: Wash hair with Nizoral - 2 or 3x/week
PM: Dermaroller - 0.75mm version 2x/week (just started this again last week). Days where I dermaroll, it's done after the Nizoral is washed out of my hair.
PM: Grapefruit Seed Extract (liquid version) - applied to whole head after Nizoral/dermaroller. Left on for 10 min and rinsed out.
I also drink 32oz of water with 20 drops of GFSE in it in the AM too.
I just took pix with my cell and I'll host em with photobucket later tonight. They're not the greatest, but they're better than nothing. I figure that since my hair's only 1/4cm long, we will be able to see any difference.