29 citations,
August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
53 citations,
June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” KAP genes show significant genetic variability, but its impact on hair traits is unclear.
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510 citations,
August 2006 in “Endocrinology” The vitamin D receptor is involved in multiple body functions beyond calcium regulation, including immune response and rapid reactions not related to gene activity.
8 citations,
October 2014 in “Journal of analytical toxicology.” Chemical hair straightening significantly reduces detectable drug levels in hair.
November 2021 in “Dermatology Research and Practice” The study aims to understand the skin and hair characteristics of mothers and their babies, and how these may affect newborns' skin health and mothers' postpartum hair loss.
28 citations,
December 2012 in “The American Journal of Cosmetic Surgery” Proteins from stem cells improved hair growth in patients with hair loss.
26 citations,
July 2011 in “PubMed” Treating H. pylori infection might help cure alopecia areata.
January 2025 in “Journal of Ayurveda and Integrated Medical Sciences” A holistic lifestyle and ethical practices are key to managing hair disorders and improving well-being.
4 citations,
June 2023 in “Journal of developmental biology” The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
19 citations,
September 2020 in “General and comparative endocrinology” Hair cortisol is a reliable stress indicator in cattle but may not be valid for pigs.
101 citations,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists turned mouse stem cells into skin cells that can grow into skin layers and structures.
6 citations,
January 2009 in “Elsevier eBooks” The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.
December 2004 in “Medicine” Pregnancy can cause skin changes and may affect pre-existing skin conditions, with some treatments not safe for use during pregnancy.
9 citations,
July 2013 in “Experimental Dermatology” Aging reduces the ability of human hair follicle cells to form new cell colonies.
8 citations,
May 2008 in “Applied surface science” Mummy hair from the Taklamakan desert has calcium and phosphorus inside.
72 citations,
October 1998 in “Baillière's clinical endocrinology and metabolism” Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.
September 1998 in “Journal of The European Academy of Dermatology and Venereology” Aging can lead to poorer scalp and hair health, including less hair and more scalp diseases, which should be managed to help older people feel better.
3 citations,
December 2020 The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.
303 citations,
August 1971 in “The American Journal of Medicine” Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
3 citations,
January 2015 in “Evidence-based Complementary and Alternative Medicine” Pumpkin seed oil may help hair growth, but more research needed on frontal hair loss and long-term effects.
January 2019 in “Journal of clinical and cosmetic dermatology” Combining laser light therapy and growth factor treatment improves hair growth in people with hair loss.
August 2019 in “Journal of The American Academy of Dermatology” Platelet-rich plasma helps hair regrowth and improves quality of life in women with hair loss, but minoxidil may be more effective.
January 2020 in “Global dermatology” The growth factor cocktail significantly increased hair growth in patients with androgenetic alopecia.
January 2020 in “Journal of clinical and cosmetic dermatology” A woman with hair loss regrew hair using minoxidil and spironolactone.
6 citations,
September 2019 in “Journal of Cosmetic Dermatology” Laser treatment effectively increases hair density and thickness in androgenic alopecia.
15 citations,
July 2021 in “JAMA Dermatology” Androgenetic alopecia negatively affects quality of life and self-esteem, especially in women, but not depression.
January 2017 in “International journal of transplantation & plastic surgery” Hair restoration techniques have improved over time, focusing on better results and less scarring, but skilled doctors are essential for natural-looking outcomes.
April 2016 in “Journal of Investigative Dermatology” Sonic hedgehog signaling is needed for the development of touch-receptor cells in the skin, and the loss of Polycomb repressive complex 2 can lead to more of these cells.
15 citations,
May 2020 in “BMC complementary medicine and therapies” Polygonum multiflorum extract helps hair grow longer and fights the effects of hormones that cause hair loss.
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25 citations,
May 2020 in “Aesthetic Surgery Journal” The regenerative solution, tSVF, is a safe and effective treatment for various conditions like aged skin, scars, wounds, and more, but more research is needed to find the best way to use it.