<b>A correction method for skin reflectance obtained with different spectrophotometers and its application: changes in the skin color of Japanese wome</b><b>n for 25 years. </b>

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  • <b>分光測色計による肌色計測と日本人女性の長期的な肌色の変遷</b>
  • 分光測色計による肌色計測と日本人女性の長期的な肌色の変遷
  • ブンコウ ソクショクケイ ニ ヨル ハダイロ ケイソク ト ニホンジン ジョセイ ノ チョウキテキ ナ ハダイロ ノ ヘンセン

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Abstract

<p>Some previous surveys reveal that the facial skin color of Japanese women varies across the ages. Compared with that in the early 1990s, the lightness of the skin color of Japanese women in the early 2000s is confirmed to increase. However, in the decades after 2000, changes in facial skin color have been hardly investigated by evaluating them quantitatively.</p><p>The aim of this study was to investigate change in the facial skin color of Japanese women for 25 years by analyzing difference in skin reflectance measured with three different types of spectrophotometers. Firstly, the skin color on a specific part of a face was measured with different spectrophotometers, and a correction equation was established for comparing the skin color data by confirming difference in the output spectral reflectance.</p><p>Next, the cheek skin colors of approximately 2,000 Japanese women were measured in 2005 and 2015, and the data were compared with corrected 1991 data, and 2001 data. The results showed that the skin color of Japanese women shifted to lower chroma and become reddish since 2000.</p>

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