research Hair perms/straighteners and styling agents January 2013 in “프로그램북(구 초록집)” Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
research Human hair form. Morphology revealed by light and scanning electron microscopy and computer aided three-dimensional reconstruction. 27 citations , September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.
research Woolly Hair in Two Siblings January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.
research Topical minoxidil and tretinoin combined with an oral vitamin D analog as a treatment for woolly hair 3 citations , February 2016 in “Dermatologic Therapy” Using minoxidil and tretinoin on the skin, along with oral vitamin D, improved hair thickness and density in two girls with woolly hair.
research Curly hair: measured differences and contributions to breakage 13 citations , November 2012 in “International Journal of Dermatology” Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.
community Why do we have head hair in first place if we evolved to start losing it in some cases as soon as puberty hits in Chat 138 upvotes 10 months ago Hair loss is influenced by genetics and sensitivity to hormones like DHT. Treatments like Minoxidil and finasteride are commonly used, and baldness persists as it doesn't affect reproductive success.