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© 2000 Society of Cosmetic Chemists
Journal of the Society of Cosmetic Chemists, Vol. 51, No. 3, 183-192


Near-infrared spectroscopy: Applications in hair research
Chandra M. Pande , Brian Yang

ABSTRACT

Synopsis

We have evaluated the potential of NIR (near-infrared) spectroscopy as a tool in hair research. We find that this technique is ideally suited for measuring the relative moisture content of hair in situ under practical hair-grooming conditions. It also allows measurement of melanin absorption in the NIR region, where there is no interference from synthetic hair dyes. Thus, rapid evaluation of “lift,” the bleaching produced by oxidation dye products, can be performed on hair swatches as well as on live heads.

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© 2000 Society of Cosmetic Chemists
Journal of the Society of Cosmetic Chemists