What is considered the perfect lip? Clinicians have studied and developed strategies for what constitutes the ideal lip ratio – defined as Phi. The golden ratio, or in modern aesthetics, known as Phi, is written as 1: 1.618. It means that the beauty of the lip is enhanced by a slight exaggeration of the lower lip compared to the upper lip. At Complete MD, we offer lip enhancement to bring out the natural look of your lips by giving you a fuller, symmetrical pout, without disrupting the natural proportions of your face. Work with us to enhance your smile and get the soft looking lip you have always wanted!