Moderate immune responses help hair growth, while excessive responses slow it down.
April 2026 in “Microscopy Research and Technique” The high-cost product with coconut oil and glycerol effectively restores severely damaged hair.
13 citations
,
October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
40 citations
,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
1 citations
,
January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
46 citations
,
August 1977 in “Journal of Morphology” The big-clawed shrew's sinus hair follicles are highly specialized for sensing vibrations.
April 2026 in “Biomolecules” Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.
7 citations
,
January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
Giant axonal neuropathy changes the structure of keratin in human hair, making it stiffer and stronger.
26 citations
,
October 1996 in “Journal of Endocrinology/Journal of endocrinology” Goat hair follicles have insulin-like growth factor-I receptors that might affect hair growth, but no melatonin receptors were found.
October 2021 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” The active ingredient improves the strength of damaged hair fibers.
254 citations
,
January 2007 in “Chemical Society Reviews” Hair is a complex protein fiber with unique properties useful for developing hair products.
19 citations
,
February 2013 in “Journal of Investigative Dermatology” Touch domes in human skin are complex sensory structures not directly linked to hair.
1 citations
,
December 2014 in “Scanning” Multiphoton microscopy effectively images rabbit skin structures in detail without staining and shows differences from human skin.
December 2021 in “Journal of natural fibers” The conclusion is that new methods for isolating hair cuticle cells and removing the cuticle layer are effective and convenient.
February 2022 in “Cosmetic Dermatology” Different hair care methods affect hair health and appearance, and there are many ways to camouflage hair loss.
September 2017 in “Journal of Investigative Dermatology” The new scalp treatment preserves hair color, reduces hair loss, and maintains hair strength.
January 2000 in “Zhongguo yixue wulixue zazhi” Different human hair keratin types have unique structures that affect how they dissolve and can be used to create self-tendons.
3 citations
,
January 2004 in “Sen i Gakkaishi” DTDG in hair treatments reduces damage and preserves hair structure.
3 citations
,
December 2020 The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.
6 citations
,
February 2020 in “Journal of Cutaneous Pathology” Nevus psiloliparus lacks mature hair follicles but keeps other skin structures intact.
13 citations
,
January 2010 in “Advances in Biochemical Engineering / Biotechnology” Understanding hair biology is key to developing better treatments for hair and scalp issues.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
3 citations
,
August 2018 in “Deleted Journal” Guasha changed rat skin appearance and blood vessels temporarily without affecting certain nerve proteins or fiber structure.
February 2019 in “American International Journal of Humanities Arts and Social Sciences” The dermis of Millivora Capenesis has two layers with various connective tissues, blood vessels, glands, and sensory structures.
7 citations
,
October 2019 in “Frontiers in bioengineering and biotechnology” Fusion proteins can protect hair from heat damage.
January 2012 in “조직공학과 재생의학” The study found that certain three-dimensional scaffolds can help regenerate hair effectively.
December 2019 in “C&EN Global Enterprise” Thicker hair isn't always stronger.