Table 4.

Color coordinates, L, a, b, and ΔE of hair tresses dyed with iron(II)-lactate in combination with 10 wt% matcha (n = 5). SD: standard deviation.

Number of Hair Washes of Matcha and Iron(II)-lactate
Color Coordinates	6 SD	12 SD	18 SD	24 SD	30 SD
L	44.09 ± 2.12	48.03 ± 1.82	48.83 ± 1.3	49.36 ± 1.51	51.03 ± 1.31
a	0.93 ± 0.07	1.48 ± 0.13	1.51 ± 0.12	1.71 ± 0.78	1.53 ± 0.06
b	3.53 ± 0.76	7.05 ± 0.41	7.7 ± 0.37	8.54 ± 0.22	8.98 ± 0.36
ΔE	4.35 ± 1.65	7.34 ± 1.64	8.35 ± 1.14	9.92 ± 1.28	10.88 ± 1.25