So, do eyelash serums work?
Truth be told, the exact mechanism of how eyelash growth serums work is still unknown. Even Allergan, the successful company behind Latisse admits this, but they believe that Latisse affects the anagen phase of the eyelash growth cycle.
Anagen phase or the growth phase is the stage where the hair follicle is active. During this phase, your hair grows from its follicle. The longer your anagen phase lasts, the longer your hair grows. Latisse is believed to extend the length of anagen phase, which results to longer and thicker eyelashes. The same may be true for other lash serums.
In addition to extending the length of anagen phase, most eyelash serums are formulated with advanced technology and ingredients that are beneficial for the skin and hair. These ingredients help strengthen hair strands to prevents breakage and fall out, as well as nourish eyelashes to make them healthier. And depending on the formulation and technology used, results will start to show in as little as 3 weeks of regular use.