Apply on clean face. Dip the brush into the serum to lightly saturate the applicator. Apply along the upper eyelid at the base of all eyelashes. Blot any extra serum as to not leak into your eyes. Use at night for best results and wash off any excess serum in the morning. Keep in mind, eyelashes are the slowest growing hair on the human body. Use nightly for 30-60 days to achieve the best results.