Bimatoprost ophthalmic solution is the drug known by the brand name Careprost Eyelash Serum. It is mostly used to treat hypotrichosis, a disorder marked by sparse or nonexistent eyelashes. To encourage lash growth, thickness, and length, careprost is applied to the base of the upper lashes. It's crucial to use Careprost as prescribed by your doctor and to adhere to the application guidelines. On clean, makeup-free eyelashes, it is usually applied once a day in the evening. While results may differ, consistent use for several weeks usually yields noticeable improvements in both lash length and thickness.