K

K

a

M

M

C


T

K

K

Z

arbutin

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<

alpha arbutin powder (1)

A

Z
A
B
C
8
4
M
u
u
G
K
Z
K
Z
Z
W
α
β
M
2
1
K
+
-

N

1

2

3


  • Z
  • E

  • K
    N
    A

     

     

    M

    K

  • Z