In my experience (in 2015), I lost around 75% of hair on my scalp in the first two weeks. I don't remember seeing hair fall, it's just one day you will see in the mirror that it is apparently thinning. That freaked me out so much. You can see my dome when the lights are on. That's how much I shed. It's so bad. I went to a very short hair cut and just stuck to it and had seen results around 2 months in. I had good results actually on my scalp as it grows some hair, and it made me grow facial hair, sideburns, and a bad a** goatee. All with minoxidil in 6-8 months.