127 citations
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January 2015 in “Journal of Biological Rhythms” The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.
103 citations
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March 2011 in “PLoS Biology” Birds can lose neck feathers due to a genetic change that increases a gene's activity, helping them adapt to heat.
98 citations
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October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
92 citations
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January 1999 in “Physics in Medicine and Biology” Skin can be cooled quickly and safely during laser treatments to protect it without affecting deeper layers.
88 citations
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February 2010 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Vitiligo is linked to autoimmune diseases and hearing issues, so hearing tests are recommended for patients.
78 citations
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February 2011 in “Canadian Medical Association Journal” Acne treatment varies, with topical and systemic therapies effective, and more research needed on treatment order and long-term effects.
75 citations
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January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
71 citations
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January 2015 in “The Scientific World Journal” Insulin resistance may contribute to various skin diseases and treating it could improve skin health and prevent more serious conditions.
69 citations
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June 2017 in “Experimental Biology and Medicine” Advanced human skin models improve drug development and could replace animal testing.
65 citations
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September 2004 in “The American journal of pathology” Blocking BMP signaling causes hair loss and disrupts hair growth cycles.
59 citations
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January 2013 in “Annals of Dermatology” Asian hair is more resistant to UV damage due to higher lipid content.
59 citations
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August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
58 citations
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July 2007 in “Clinics in Dermatology” Tattooing helps treat skin conditions, reconstruct nipple-areola, mark radiation fields, and locate lesions.
49 citations
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June 2009 in “Seminars in Cutaneous Medicine and Surgery” The cosmetic industry should adapt to the varied beauty standards of ethnic groups and offer specialized treatments.
47 citations
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January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Premature graying of hair may suggest health issues and currently lacks effective treatments.
47 citations
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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.
43 citations
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August 2013 in “Pediatric Dermatology” Trichoscopy is good for diagnosing and monitoring hair and scalp problems in children but needs more research for certain conditions.
40 citations
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July 2013 in “Skin Pharmacology and Physiology” Male skin gets drier and more alkaline as it ages, which may need different skincare than women's skin.
40 citations
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April 2006 in “Journal of the European Academy of Dermatology and Venereology” The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.
39 citations
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June 2017 in “Journal of Applied Research on Medicinal and Aromatic Plants” Plant-based ingredients are effective and safe for modern skincare products.
37 citations
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October 2014 in “Maturitas” Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.
36 citations
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August 2011 in “Journal of dermatological science” Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
35 citations
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January 2013 in “International Journal of Trichology” Kids with early graying hair often have low levels of calcium, ferritin, and vitamin D3.
34 citations
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January 2014 in “International Journal of Trichology” Polarized dermoscopy is slightly better than nonpolarized for diagnosing hair disorders, with each method having its own strengths.
33 citations
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January 2021 in “Aesthetic Surgery Journal” Low-Level Light Therapy (LLLT) is a safe and effective method for skin rejuvenation, acne treatment, wound healing, body contouring, and hair growth, but more well-designed trials are needed for confirmation.
33 citations
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August 2018 in “Facial Plastic Surgery Clinics of North America” The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
28 citations
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April 1996 in “Cell biology international” Changes in keratin affect skin health and can lead to skin disorders like blistering diseases and psoriasis.
23 citations
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November 2018 in “Development, Growth & Differentiation” Epidermal stem cells have various roles in skin beyond just maintenance, including forming specialized structures and aiding in skin repair and regeneration.
23 citations
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August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
23 citations
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March 2010 in “Medical hypotheses” Merkel cells may have roles in sensing magnetic fields, creating fingerprints, Reiki energy healing, passing on environmental information to offspring, and influencing hair shape.