Skin Lipid Component

Sebaceous Lipids (%)

Epidermal Lipids (%)

Glycerides and Ceramides

30–50

30–35

Free Fatty Acids

15–30

8–16

Wax Esters

26–30

ND

Squalene

12–20

ND

Cholesterol Esters

3–6

15–20

Cholesterol

1.5–2.5

20–25