The decline of tissue regenerative potential of skin and hair is a hallmark of physiological ageing and may be associated with age‐related changes in tissue‐specific stem cells and/or their environment. Human hair follicles (hHF) contain keratinocytes having the property of stem cells such as clonogenic potential. Growth capacity of hHF keratinocytes shows that most of the colony‐forming cells are classified as holoclones, meroclones or paraclones when analysed in a clonal assay (Cell, Volume 76, page 1063). Despite the well‐known impact of ageing on human hair growth, little is known about changes in hHF keratinocyte clonogenic potential with age. This study aimed at assessing the clone‐forming efficiency (CFE) of hHF keratinocytes from three age groups of human donors. It demonstrates that ageing affects hHF keratinocyte CFE.