Development of a Stiffness-Angle Law for Simplifying the Measurement of Human Hair Stiffness

January 2018 in “ International Journal of Cosmetic Science ”

In Keun Jung, S. C. Park, Y. R. Lee, Sung-Ah Bin, Yong‐Deog Hong, Daekyung Eun, J. H. Lee, Young Sup Roh, B. M. Kim

caffeine Fourier Transform Infrared Spectroscopy FTIR hair stiffness Stiffness-Angle Law shampoo

Studysummary In this study, researchers developed a method called the Stiffness-Angle Law and found that hair treated with caffeine-infused shampoo showed a 13.2% increase in stiffness, as measured by their novel evaluation technique.

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