Skin tone indicates age

Philadelphia - Skin tone and luminosity are key indicators of age in the perception of viewers, European researchers say.

Scientists in Austria and Germany say skin color and tone can visually add or subtract up to 20 years from a woman's age. The study, presented at the Human Behavior and Evolution Society's annual meeting here, used 3-D imaging and morphing software to remove wrinkles and bone structure from the equation, according to http://Cosmeticsdesign.com/.