Abstract
A single human hair grows at the rate of approximately 9–12 mm/month. The combined effect of approximately 100,000 hair shafts produces a physical entity—the hair mass—which increases at a combined total of approximately 6 feet (1.8 m) an hour or 140 feet (46.67 m)/day. At a uniform length of 40 cm, this represents 40 km of hair carried on the head.
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Thibaut S, De Becker E, Bernard BA, Huart M, Fiat F, Baghdadli N, et al. Chronological ageing of human hair keratin fibres. Int J Cosmet Sci. 2010;32(6):422–34.
Fink B, Neuser F, Deloux G, Röder S, Matts PJ. Visual attention to and perception of undamaged and damaged versions of natural and colored female hair. J Cosmet Dermatol. 2013;12:78–84.
Marsh JM, Iveson R, Flagler MJ, Davis MG, Newland AB, Greiss KD, et al. Role of copper in photochemical damage to hair. Int J Cosmet Sci. 2014;36(1):32–8.
Pande CM, Albrecht L, Yang B. Hair photoprotection by dyes. Int J Cosmet Sci. 2001;52:377–89.
Naqvi KR, Marsh JM, Godfrey S, Davis MG, Flagler MJ, Hao J, et al. The role of chelants in controlling Cu(II)-induced radical chemistry in oxidative hair colouring products. Int J Cosmet Sci. 2013;35(1):41–9.
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© 2015 Springer International Publishing Switzerland
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Marsh, J., Gray, J., Tosti, A. (2015). Understanding Hair Damage. In: Healthy Hair. Springer, Cham. https://doi.org/10.1007/978-3-319-18386-2_3
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DOI: https://doi.org/10.1007/978-3-319-18386-2_3
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-18385-5
Online ISBN: 978-3-319-18386-2
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