Sample hair

dyed with

undyed

CC

dyestuffs from Polyphenon 70S

dyestuffs from Sunphenon EGCg

dyestuffs from Sunphenon BG-3

dyestuffs from Sunphenon 90S

L^*

70.8

33.3

49.2

53.4

42.7

55.7

a^*

4.47

14.5

10.7

4.54

8.77

4.01

b^*

25.8

19.3

22.7

18.8

20.0

19.3

C^*

26.2

24.1

25.1

19.3

21.9

19.7