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. 2020 Oct 15;43(1):26–37. doi: 10.1111/ics.12663

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© 2020 The Authors. International Journal of Cosmetic Science published by John Wiley & Sons Ltd on behalf of Society of Cosmetic Scientists and Societe Francaise de Cosmetologie

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Young’s modulus measured at 20% and 80% RH as a function of treatment and hair condition (means ± standard errors). At 20% RH, results that are statistically different in comparison with relaxed hair control (DI water) are labelled with the letter a, and results that are significantly different from virgin hair control (DI water) are labelled with the letter b. At 80% RH, results that are statistically different in comparison with relaxed hair control (DI water) are labelled with the letter c, and results that are significantly different from virgin hair control (DI water) are labelled with the letter d.