Any cream or serum left on your lashes after moisturising can cause uneven distribution of the mascara. Use a cotton pad and a few drops of Effacil to make sure your lashes are clean and dry. With an eyeshadow brush, apply a thin layer of loose powder to your eyelids to avoid staining, in the event that you accidently smudge your mascara during application. If you have straight eyelashes, use a lash curler before applying the mascara to widen your gaze.