I had chemo a few years ago and lost my lashes. Luckily after trying everything under the sun even extensions I found a serum that helped them grow bigger and better. But, by far the best thing was Lancome cils Booster Super enhancing mascara primer. Its purely amazing!! You can follow with most any good mascara but my favorites are Lancome Lash Lifting and Volumizing and Hourglass instant extensions. But, the primer is the key, and the serum I used every single night Grande Cosmetics GrandeLash enhancing serum I didnt really expect it to work really but it sure did.