IMPORTANCE Aesthetic proportions of the lips and their effect on facial attractiveness are poorly defined. Established guidelines would aid practitioners in achieving optimal aesthetic outcomes during cosmetic augmentation.OBJECTIVE To assess the most attractive lip dimensions of white women based on attractiveness ranking of surface area, ratio of upper to lower lip, and dimensions of the lip surface area relative to the lower third of the face.
DESIGN, SETTING, AND PARTICIPANTSIn phase 1 of this study, synthetic morph frontal digital images of the faces of 20 white women ages 18 to 25 years old were used to generate 5 varied lip surface areas for each face. These 100 faces were cardinally ranked by attractiveness through our developed conventional and internet-based focus groups by 150 participants. A summed ranking score of each face was plotted to quantify the most attractive surface area. In phase 2 of the study, 4 variants for each face were created with 15 of the most attractive images manipulating upper to lower lip ratios while maintaining the most attractive surface area from phase 1. A total of 60 faces were created, and each ratio was ranked by attractiveness by 428 participants (internet-based focus groups). In phase 3, the surface area from the most attractive faces was used to determine the total lip surface area relative to the lower facial third.
The Internet-based method can be an effective alternative to the traditional live focus group method of evaluating facial attractiveness. It also has five main advantages: 1) profoundly increases rater count; 2) increases rate of data accrual and analysis; 3) results are reproducible; 4) eliminates logistical and monetary obstacles; and 5) enables the experimenter to sweep broad demographics, acquire background data from raters, and locate raters with specific expertise.
To our knowledge, this is the first study to empirically correlate these six landmark NTP ratios with facial attractiveness. Although there was no correlation with any of the six ratios, the ideal ratios proposed by Goode and Crumley impacted facial aesthetics the most. Although the ideal ratios are useful in establishing rhinoplasty guidelines, they should only be used as a part of the management in achieving an aesthetic face on the whole, as they may not be robust enough to correlate with overall facial attractiveness.
This study shows significant advantages to using a social network site-based method over both Internet-based rating and traditional focus groups for evaluating facial attractiveness. The main benefits include exponential increase in raters, minimized researcher time/labor, rater scores comparable to those of the focus group method, nonnecessity of rater monetary incentives, and selectable demographics/ages of raters.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.