To achieve attractive and natural lip enhancement, there must be a balanced augmentation of the upper and lower lips, according to an online survey that examined what the two-dimensional threshold is for perception of artificial-looking lips.

Survey results, which appear in JAMA Facial Plastic Surgery, were culled from 98 participants: 76 females and 22 males (mean age 42 years).

Each participant rated photographs of a female model’s lips that were digitally altered incrementally for the upper lip, lower lip, upper and lower lips and shape of the Cupid’s bow.
“It is routine in my practice, as well as those of many other facial plastic surgeons, that patients seek natural-appearing results,” says principal investigator Sang W. Kim, M.D., medical director and owner of Natural Face Clinics, with locations in Syracuse, Rochester, and Ithaca, N.Y. “While extensive literature and studies have been dedicated to determine the ideal or attractive proportions of various parts of the face, there are not many studies dedicated to ascertaining what makes the face appear artificial and ‘overdone.’”
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