Kératin UP Transparent Mascara is a keratin treatment serum that can be used to improve the thickness and overall health of your natural eyelashes and eyebrows. It is designed with an easy-to-use mascara wand to ensure even product distribution. It can be used after a lash lift treatment for even better results, helping the treatment last longer. The suggested treatment period is 3 weeks, applying generously 2-3 times per day.