The 'mantle hair' is a hair follicle which is characterized by a circu
mferential proliferation of basaloid epithelial cells emanating from t
he base of its infundibulum. These cells show varying sebaceous differ
entiation. The mantle hair was first described 100 years ago. Since th
en, this type of hair follicle with its particular sebaceous gland has
been forgotten repeatedly, to be rediscovered anew. Thus, a confusing
terminology has evolved, and concepts of its nature are controversial
. In this article we present a review of the 100-year history of the m
antle hair.