Using these magnetic false eyelashes with the magnetic liquid eyeliner is easy. First, apply the magnetic liquid eyeliner on your eyelid where you usually wear eyeliner. Wait for a few seconds until it's almost dry but still sticky. Then, carefully place the false eyelashes on the line of the eyeliner. Press gently to make sure they stick well. When it comes to maintenance, after each use, gently remove the false eyelashes. Clean them with a mild makeup remover and let them dry naturally. Keep them in a clean and dry case to avoid damage. Also, be careful not to get the magnetic liquid eyeliner into your eyes. If you feel any discomfort, stop using it immediately.