Table 1: Components of skin surface lipids. Triglycerides (TG); Free fatty acids (FFA); Wax esters (WE); Squalene (SQ); Cholesterol Esters (CE); Cholesterol (CH).

Sebum (%)Epidermal lipids (%)

TG30–5030–35
FFA15–308–16
WE26–30
SQ12–20
CE3.0–6.015–20
CH1.5–2.520–25