After 1 month of use the results are in! I have definitely seen the change in the length of my lashes. I am still waiting for fuller lashes. My lashes were already dark, so I do not anticipate any change there. Again, optimal results are reached within 8 weeks, so I will keep reporting.
Keeping track of lash length is difficult, so here is my measuring technique. With the help of photos, I measured the length of my lashes in three places (inner, middle, outer) then divided the measurements by three to get an average.
In four weeks I have seen .40 mm of growth in Right eyelashes and 0.57 mm of growth in Left eyelashes.