September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
December 2023 in “Journal of molecular structure” Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.
June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
March 2023 in “Asian journal of beauty & cosmetology” Keratin pretreatment improves the quality of damaged hair during perming.
Coconut oil helps protect and improve damaged hair.
May 2022 in “Experimental dermatology” Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
August 2018 in “Journal of The American Academy of Dermatology” Aging significantly affects the hair and scalp of nonbalding Caucasian women, with changes that differ from male pattern baldness.
January 2018 in “프로그램북(구 초록집)” Ceramide-based essence cream improves damaged hair.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
January 2009 in “Journal of Zhengzhou University” LAIC cream can improve acne by making skin thinner and softer.
CDPDFM can improve acne symptoms in rabbit ears.
Different treatments change the strength and flexibility of human hair.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
December 1988 in “Anatomia, Histologia, Embryologia” Frequent hair dye use caused significant hair and skin damage and affected the dogs' behavior.
47 citations,
June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
30 citations,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
25 citations,
February 2007 in “Forensic science international” Different hair cleaning methods caused varying levels of damage to the hair's outer layer.
23 citations,
August 2019 in “Proceedings of the National Academy of Sciences of the United States of America” Pollution exposure speeds up hair damage.
15 citations,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
13 citations,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
11 citations,
January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
8 citations,
January 2016 in “Skin research and technology” The 12-point scale is better for evaluating small changes in hair condition after using hair care products.
6 citations,
June 1976 in “Journal of ultrastructure research” Keratinized wool cells still have some organelles like lysosomes and mitochondria.
5 citations,
May 2021 in “International Journal of Cosmetic Science” Healthy scalp leads to better hair quality and less damage.
5 citations,
July 2010 in “Journal of life sciences” Gray hair has more continuous medullation and a higher medullary diameter than black hair.
4 citations,
April 2018 in “The journal of pediatrics/The Journal of pediatrics” A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
3 citations,
October 2006 in “Journal of dermatology” X-ray microscopy can non-invasively show hair structure changes after treatments, but it's less detailed than TEM and needs improvement.
2 citations,
May 2012 in “Acta pharmaceutica sinica B” The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.
2 citations,
January 2004 in “PubMed” Conditioners with PQ-10 soften the flat part of hair cuticles but harden the edges.