Postmenopausal acne originates at or after menopause in darker-skinned, formerly oily-skinned, large-pored women who usually did not experience adolescent acne. It is a low-grade, long-smoldering acne in which small closed comedones are dominant, among which there is a scattering of dimunitive papulopustules. There is a seeming association with chin and upper lip hirsutism. Topical tretinoin is an effective therapy. Unopposed adrenal androgens present after ovarian failure may be the chief causes of this condition.