This study examined how attractiveness judgments of faces and voices change during adolescence. Researchers had over 400 adolescents between the ages of 11-17 rate photos of faces and short voice clips on attractiveness. Results showed that attractiveness criteria became increasingly refined during adolescence, with preferences stabilizing around age 16. Adolescents placed greater emphasis on facial symmetry, health cues, and sexually dimorphic facial features as they got older. Voice attractiveness judgments also became more consistent with adult preferences over time. This suggests that attractiveness evaluations mature and become calibrated to reproductive fitness cues during the transition to adulthood.