The FEG Eyelash Enhancer Rapid Growth Eye Lash Serum features all natural ingredients for eyelash growth. To get better results, you use this sterile eyelash growth serum twice a day. It works by stimulating the hair follicles in your eyelashes to make them grow more quickly. When used as directed, you should start to see results within three weeks. This serum is a liquid formula that will help your lashes become thicker, fuller, and longer.