LiLash Coupon Deals - Get $20 off on LiLash (and LiBrow as well), as well as FREE 2-Day Shipping! The latest sale for Lilash Purified Eyelash Serum - this goes on from now until December 18, 2012! LiLash is the most effective natural eyelash enhancer and growth product out there, and unlike Latisse, doesn't result in pigment changes to the eyelids or irises - so it won't turn your baby blues into browns.