Seborrhoea in acne-prone and acne-free patients.

We have studied the relationship between seborrhoea and acne by using the Lipometre and Sebutape films. Seborrhoea is more intense in acne-prone than in acne-free patients. For a given overall amount of sebum excreted, the individual activity of sebaceous follicles differs in the two groups of individuals tested. Seborrhoea in acne-prone patients is due to the presence of some highly active follicles that are almost never encountered in acne-free patients.