The very BEST eyelash treatment ever - and man was THIS a surprise! - was a cheapo product from the local drugstore. Ardell Eyelash Conditioner! I'm pretty sure drugstore.com carries it too. Awesome stuff. I use that at night, and every few weeks I tint my eyelashes with 1000 hour eyelash tint. It isn't available in the U.S. but you can buy it online from suppliers in Australia and NZ. What most people don't know is that the very tips of your eyelashes are completely transparent. The combination of the tinting and the Ardell stuff has given me such long lush eyelashes that I hardly need mascara!