I began using this because my hair was rapidly falling out due to stress and such. I was just looking for anything to try and this was recommended so I went for it. Within a few days I noticed significantly less hair loss when I brush my hair. I also noticed where I began getting patches of loss, there was new growth. It did irritate my skin a bit right at the forehead hairline so I use a band to keep it from running down while also keeping the head tilted back during application. The irritation went away and hasn't returned, so if your skin is sensitive or just to be careful I advice a hairband to keep it from running down to your skin(forehead, behind the ears etc). Overall I'm so happy with this product and will continue to use.