I had resorted to eyelash extensions since my own lashes had become so thin and were falling out. That was very expensive; I required fill-ins every 7-10 days. Latisse changed all that. My facialist noticed improvement after 3 weeks and I definitely saw a big change after 4 weeks. My lashes are longer, darker, not falling out and I see new little 'sprouts' coming in regularly.
I don't like the brushes that come with the kits. I use a good eyeliner brush and clean it with inexpensive saline solution for contact lenses. Also, I use Latisse in the morning since my eyes have always watered during sleep.
I have blue eyes and after almost 5 weeks of Latisse use I've suffered no side effects. I would advise anyone who really likes this product to get the next box before they need it.