Physician's Formula Shimmer Strips Custom Eye Enhancing Eyeliner Trio come in three ranges of to enhance every eye colour so they are available in different sets for brown, green and blue eyes. Matching eyeliner and eye shadows to complement your eye colour is an important lesson to learn and you could be surprised with what colours enhance your eyes. I have both green and brown eyes so some colours make the green pop while others make my eyes look simply brown. The collection I'm reviewing here is made for brown eyes so contains brown itself, black and purple (which is actually a surprisingly good shade for both brown and green eyes).