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Updated: May 8, 2026

Generation of Integration-free Human Induced Pluripotent Stem Cells Using Hair-derived Keratinocytes
Published on: August 20, 2015
Phenotype of normal hairline maturation
William R Rassman1, Jae P Pak, Jino Kim
1New Hair Institute, 5757 Wilshire Boulevard, Promenade #2, Los Angeles, CA 90036.
Abstract:
Hairlines change shape with age, starting at birth. A good head of hair is frequently present some time after ages 3 to 5 years. The look of childhood has its corresponding hairline, and, as the child grows and develops into adulthood, facial morphology migrate changes from a childlike look to a more mature look. This article discusses the dynamics of hairline evolution and the phenotypic variations of the front and side hairlines in men and women. A modeling system is introduced that provides a common language to define the various anatomic points of the full range of hairlines.
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