Strengthen and revitalize your lashes with Cils Booster Lash Revitalizing Serum from Lancôme. This long-term treatment goes far beyond lash growth and delivers the first visible and lasting results after just four weeks of continuous use. Just like hair, eyelashes are susceptible to damage. In just four weeks, Lancome's Cils Booster Lash Serum repairs the hair fibres and makes for thicker, thicker, longer and stronger lashes. The benefits of Lancôme's Cils Booster Lash Revitalizing Serum: It provides thicker, thicker and stronger lashes and less eyelash loss The formula is hormone-free and causes no undesirable side effects It ensures long-lasting results, which are retained even after use According to a survey of 100 female consumers, after four weeks of use: 90% said that damaged eyelashes looked repaired, 87% said that the lashes were strengthened, 83% noticed that the loss of eyelashes when removing make-up had decreased. Technology: Inspired by hair science, Lancôme has combined 4 of the most concentrated and stimulating amino acids found in hair into a serum that both revitalizes and strengthens lashes.