M

S

a

M

M

C


F

B

g

T

arbutin

<

<

alpha arbutin powder (1)

T

W
A
B
C
8
4
M
B
B
X
H
S
S
K
K
S
A
β
M
2
1
W
+
-

C

1

2

3


  • H
  • X

  • X
    H
    N

     

     

    L

    G

  • A