Vi
t
ami
n A
Moi
s
t
ur
e t
e
s
t
.
I
f your hands and pal
ms ar
e dr
y
and s
ki
n c
r
ac
ks
,
hai
r be
c
ome
s
di
l
api
dat
e
d,
hai
r t
i
ps ar
e dr
y,
nai
l
s ge
t i
n l
aye
r
s and c
happe
d,
i
t s
hows t
he de
fic
i
e
nc
y of vi
t
ami
n A.
T hi
s vi
t
ami
n i
s ne
c
e
s
s
ar
y f
or t
he
f
or
mat
i
on and r
e
ge
ne
r
at
i
on of
s
ki
n muc
us
.
A l
ac
k of vi
t
ami
n A fir
s
t
affe
c
t
s t
he s
ki
n and e
ye
s
,
i
t c
an al
s
o
de
ve
l
op goos
e s
ki
n.
Vi
t
ami
n B6
Or
al t
e
s
t
.
I
f you f
e
e
l
havi
ng s
mal
l
ul
c
e
r
s
i
n your mout
h,
or t
he c
or
ne
r
s
of your l
i
ps ar
e c
happe
d,
i
t c
an
i
ndi
c
at
e a l
ac
k of vi
t
ami
n B6
de
fic
i
e
nc
y.
Thi
s vi
t
ami
n i
s one of
t
he mos
t vi
t
al
vi
t
ami
ns
.
I
t i
s c
r
uc
i
al
f
or a good s
ki
n c
ondi
t
i
on,
c
e
l
l
r
e
ge
ne
r
at
i
on,
c
e
l
l
ul
ar e
ne
r
gy
pr
oduc
t
i
on,
ne
r
ve s
ys
t
e
m ac
t
i
vi
t
y
and t
he body'
s r
e
s
i
s
t
anc
e t
o i
nf
e
c
t
i
ons
and i
mmuni
t
y.