The Formation of Vellus Hair Follicles from Human Adult Epidermis1

    Albert M. Kligman, John S. Strauss
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    TLDR Adult human skin can grow new fine hair follicles after a deep exfoliation treatment.
    Albert M. Kligman and John S. Strauss's study on five adult subjects showed that adult human epidermis can form new vellus hair follicles after dermabrasion, a process where the skin is frozen and abraded to a depth of about 2 millimeters. Biopsies taken from one week to two months after the procedure revealed the development of new vellus hair follicles with sebaceous glands from the epidermis, mirroring embryonic hair follicle development. The study concluded that the adult human epidermis has the potential to regenerate new hair follicles, although it's uncertain if this includes the regeneration of coarse terminal hair follicles.
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      Growth of the Hair

      research Growth of the Hair

       521 citations,  January 1954 in “Physiological Reviews”