Expressive eyelashes without prohibited hormones. DThe Tomorrowlabs Eyelash Booster concentrate was developed on the basis of the effective [ HSF ] technology and is supposed to sustainably and naturally strengthen the growth of the eyelashes. Without using prohibited hormones, [ HSF ] aims to repair the cell's most important regeneration signal and thus restore the hair root's nutrient supply. Designed for thicker, thicker and longer eyelashes. Thanks to its balanced formulation, the eyelashes are cared for intensively right up to the tips and supplied with important nutrients. The result is a radiant and expressive appearance.