According to their web site Lilash works "By fortifying and conditioning lash follicles LiLash's unique purified eyelash serum works magic!" The contents of Lilash are Water/Agua/Eau, Glycerin, Hydroxyethylcellulose, Prunus Amygdalus (Sweet Almond) Extract, Hydrolyzed Lupine Protein, Panthenol, Isopropanol Phenylhydroxypentene Dihydroxycyclopentylheptenate, Silica, Chlorphenesin, Caprylyl Glycol. Does this sound like scientific proof or simply unproven claims? Unfortunately, the FDA has little control over companies making claims such as these.
Contrast this with Latisse which is a prescription-only solution that has been scientifically proven to stimulate the growth of eyelashes. Many studies have been done to prove its effectiveness using unbiased observers. At present, Latisse is the only FDA approved treatment for growing eyelashes. Using Latisse at nigh t should be all that is necessary to have longer, thicker, darker eyelashes.