December 2014 in “Bali Medical Journal” Females have higher estrogen receptor levels in hair than males, and these levels decrease in white hair compared to black hair.
43 citations
,
August 2016 in “International Journal of Nanomedicine” Eupafolin nanoparticles help protect skin cells from damage caused by air pollution.
46 citations
,
April 2014 in “PLOS ONE” Gray hair may be caused by lower antioxidant activity in hair cells.
March 2011 in “Pigment Cell & Melanoma Research” The Agouti gene influences pigmentation and may have a developmental role in deer mice.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
January 2016 in “Experimental Dermatology” New findings suggest potential treatments for melanoma, hyperpigmentation, hair defects, and multiple sclerosis, and show skin microbiome changes don't cause atopic dermatitis.
January 2020 in “대한미용학회지” Permanent hair dye reduces sulfur content in both gray and black-brown hair.
101 citations
,
April 2013 in “Science” Feather pigment patterns form through melanocyte arrangement and simple regulatory mechanisms.
January 2008 in “Linchuang pifuke zazhi” Betamethasone activates and increases the growth of certain skin cells from hair follicles.
January 2004 in “Banca y finanzas: Revista profesional de gestión financiera” Androgens increase pigmentation in certain hamster skin areas, but estrogens can reverse this effect.
4 citations
,
May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.
25 citations
,
December 2008 in “Journal of Dermatological Case Reports” Skin color may change how alopecia areata looks under a dermoscope.
43 citations
,
February 2008 in “Journal of cutaneous pathology” Melanocyte precursors in human fetal skin follow a specific migration pattern and some remain in the skin's deeper layers.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” BMP signaling controls hair growth and skin color.
14 citations
,
January 1977 in “PubMed” The hair keratin variant is mostly found in Caucasians.
17 citations
,
February 2011 in “International Journal of Cosmetic Science” Grey hair is wilder, drier, and less manageable than pigmented hair.
39 citations
,
March 2017 in “Dermatologic clinics” UV light can help stimulate the growth of new pigment cells from hair follicles in people with vitiligo.
222 citations
,
January 2005 in “Endocrine journal” Melatonin is important for skin health and protection, and can be made by the skin or applied to it.
1 citations
,
January 2016 in “Acta histochemica” Black sheep have higher levels of Gnαs and Gnα11 proteins, which may affect their coat color.
7 citations
,
May 2020 in “Trends in molecular medicine” The document concludes that the immune-inhibitory environment of the hair follicle may prevent melanoma development.
17 citations
,
May 1969 in “American Journal of Physical Anthropology” The silver marmoset's skin is thin, lacks pigment cells, and has unique features like keratinized spines and specialized glands.
5 citations
,
January 2015 in “Skin appendage disorders” Colored hair-thickening fibers can help hide hair loss in some people with Epidermolysis Bullosa but may cause scalp irritation.
36 citations
,
January 2007 in “Archives of Histology and Cytology” Type IV collagen chains vary in different parts of human skin, with specific patterns linked to melanocytes.
October 2021 in “QJM: An International Journal of Medicine” Vitiligo patients have higher hydrogen peroxide levels and lower E-cadherin, affecting skin cell adhesion and pigmentation.
11 citations
,
April 2013 in “Homo” Darker skin in 10-year-old girls may be an early sign of puberty.
November 2022 in “Skin Appendage Disorders” PT-20 did not significantly improve gray hair repigmentation.
1 citations
,
February 2025 in “Photodermatology Photoimmunology & Photomedicine” 830 nm LED light effectively treats and prevents skin redness and dark spots, while 590 nm LED light only helps prevent them.
June 2004 in “Journal of Investigative Dermatology” Increased pigmentation may protect skin from UVB, new targets for skin disease treatments were identified, sunscreen ingredients don't affect hormones, TNF-α inhibitors may help diabetic wounds, and certain treatments could prevent chemotherapy-induced hair loss.
4 citations
,
December 2024 in “International Journal of Molecular Sciences” Hom Thong banana peels can help reduce skin pigmentation by inhibiting melanin production.