Hypotrichosis 8, also known as woolly hair, autosomal recessive 1, with or without hypotrichosis, is related to hypotrichosis 1 and hypotrichosis simplex. An important gene associated with Hypotrichosis 8 is LPAR6 (Lysophosphatidic Acid Receptor 6), and among its related pathways/superpathways are Nervous system development and Keratinization. Related phenotypes are sparse scalp hair and woolly hair