Table 4. HCVF values of natural black and vibrant black hair

Table 4. HCVF values of natural black and vibrant black hair

Hair Dye Formula HCVF Oc (%) Shine (L) L* b*
Natural Black 50.6 97.5 25.6 20.1 -0.60
Vibrant Black 54.6 98.6 27.5 18.5 -2.19

* L and b* were determined by the XE Spectrocolorimeter, manufactured by LabScan Analytical Science, Gliwice, Poland.