From: 4,8-Sphingadienine and 4-hydroxy-8-sphingenine activate ceramide production in the skin
Sphigoid base
double bond
composition(%)
t18:0
-
1.4
t18:1
C8-C9
40.2
d18:1
3.8
C4-C5
0.6
d18:2
C4-C5,C8-C9
54.0