What It Is:A fortifying eyelash serum that conditions damaged and over-processed lashes from root to tip and reduces lash loss during makeup removal.What It'S For:Suitable for sensitive eyes. Ophthalmologist tested.What It Does:This lash serum, infused with amino acids, revitalizes lashes, including those damaged by daily makeup application, eyelash curlers, false lashes and lash extensions. Applied twice daily, the lightweight, lash-loving formula refuels and cares for lashes day and night.How To Use It:Begin with a clean eye area that's free of makeup. After cleansing and moisturizing skin, apply the lash serum along the upper and lower lash lines (like a liquid eyeliner). Next, apply serum from lash root to tip (as you would apply mascara). Wait 1-2 minutes before eye makeup application. Apply twice a day as a part of your morning and evening skincare routine. Pro Tip: For even fuller lashes, apply Cils Booster Xl Lash Primer to eyelashes, followed by your favorite mascara.Clinical Results:Based on a consumer test panel after 4 weeks when applied twice daily:- 87% said that lashes felt fortified- 80% said that damaged lashes felt revitalized- 83% saw less lash loss during makeup removal