Review (5/5): Don’t hesitate on this one.
I bought this to use on a few sparse patches in my lashes as well as on my brows. I follow the instructions to a t, applying only at night onto clean lash/brow hair and allow to dry completely before going to bed. The results are excellent. Within a week, most of the sparse patches in my lashes had begun to fill. Within two weeks, the short lashes were almost the same length as all the others. I am noticing longer existing lashes that are less prone to breakage and new growth in my brows as well. I have very sensitive skin and have a ridiculous amount of allergies to product ingredients and this has caused zero issues for me. I will definitely be repurchasing.