Spa Treatment Beauty Lash Mascara Beauty Lash is an eyelash care series that has been selling for 10 years. Use this mascara with serum for daytime use to make your eyelashes more impressive the more you apply it. For those who are worried about damaged eyelashes, we also recommend Beauty Lash Eyeliner and Beauty Lash Simple, an eyelash serum for night use. This allows you to focus on eye care all day long.