LiLash Purified Eyelash Physician-Formulated Serum XL for Fuller & Longer Looking Eyelashes I have used this for many years. One of the larger tubes lasts a very long time. Works better than the prescription brand. I have had zero side effects and whenever I’m using it, I get asked if I’m wearing false lashes. It works that good! Follow @houseofwest_ on instagram for more inspiration. LTKbeauty