After being on 5% minoxidil and finas for years and years, my hair loss became aggressive. I regained a lot of what I lost with 15% minoxidil. One major problem is people aren't willing to be patient. It took me many sheds and regrowth phases to see positive results. Over 6 months and I continued to see amelioration for over a year, after that is finally stabilized. I didn't panic and was steadfast. No regrets here except that its more costly.