93 citations,
February 2008 in “Atmospheric environment” Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.
93 citations,
January 1996 in “Clinical Pharmacokinectics” Finasteride helps regrow hair and shrink prostate by reducing DHT, with some sexual side effects.
90 citations,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
90 citations,
May 1972 in “Clinical Pharmacology & Therapeutics” Minoxidil quickly leaves blood, turns into urine metabolites, and has lasting blood pressure-lowering effects.
88 citations,
June 2016 in “Human Reproduction Update” New hormonal contraceptives are safer, have fewer side effects, and offer health benefits for women.
84 citations,
December 2017 in “EMBO Reports” Circadian rhythms are crucial for stem cell function and tissue repair, and understanding them may improve aging and regeneration treatments.
82 citations,
October 2019 in “Frontiers in Immunology” Changes to the Foxp3 protein affect how well regulatory T cells can control the immune system, which could help treat immune diseases and cancer.
81 citations,
June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
81 citations,
February 1997 in “Journal of Investigative Dermatology” Minoxidil boosts hair growth by activating PGHS-1.
77 citations,
March 2014 in “Cold Spring Harbor Perspectives in Medicine” Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.
77 citations,
July 2013 in “Best Practice & Research in Clinical Obstetrics & Gynaecology” Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.
76 citations,
December 2018 in “Aesthetic Plastic Surgery” Platelet-rich plasma may help in skin and hair treatments, and with muscle and joint healing, but more research is needed to fully understand its benefits and limitations.
75 citations,
January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
70 citations,
January 2014 in “International review of cell and molecular biology” Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.
68 citations,
June 2005 in “Expert Opinion on Therapeutic Targets” Oestrogens help maintain healthy skin, heal wounds, and may protect against skin aging and cancer.
67 citations,
May 2018 in “Journal of Ginseng Research” Red ginseng may improve immunity, fatigue, memory, blood circulation, and menopausal symptoms, and is generally safe to consume.
67 citations,
July 2016 in “Reviews in Endocrine and Metabolic Disorders” Stress can worsen skin conditions by affecting hormone levels and immune response.
67 citations,
August 2013 in “International Journal of Cosmetic Science” Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.
67 citations,
April 2007 in “Journal der Deutschen Dermatologischen Gesellschaft” Shampoos are designed to clean and improve hair and scalp health, with specific ingredients for different hair types and conditions.
65 citations,
May 2010 in “Current Women's Health Reviews” Oxidative stress is a key factor in the development of Polycystic Ovary Syndrome, and weight management can improve symptoms.
63 citations,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
63 citations,
December 1988 in “International Journal of Dermatology” Vitiligo causes white skin patches and is linked to autoimmune issues.
59 citations,
May 2017 in “Scientific reports” ZDHHC13 is important for normal liver function and metabolism, affecting mitochondrial activity.
58 citations,
March 2013 in “Human Reproduction Update” Products should be called 'sperm-safe' only after thorough, well-designed tests.
58 citations,
April 1998 in “Journal of biological chemistry/The Journal of biological chemistry” CYP2B12 enzyme in skin cells converts arachidonic acid into specific bioactive lipids.
54 citations,
January 2018 in “Scientific reports” Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.
54 citations,
January 2013 in “BMC Complementary and Alternative Medicine” Thuja orientalis hot water extract may help hair grow by starting the growth phase and improving hair follicle development.
54 citations,
December 2007 in “Best Practice & Research Clinical Endocrinology & Metabolism” Targeting glucocorticoid action might help treat type-2 diabetes, but human trials are needed.
53 citations,
October 2014 in “Free radical biology & medicine” Defective mitochondrial DNA replication causes aging symptoms and increased oxidative damage in mice.
51 citations,
September 2020 in “Cell Metabolism” Glutamine metabolism affects hair stem cell maintenance and their ability to change back to stem cells.