79 citations
,
January 1975 in “Food and Cosmetics Toxicology” The hair dye formulations tested did not cause long-term toxicity or cancer in mice.
85 citations
,
July 2002 in “Pigment Cell Research” The article concludes that while we understand a lot about how melanocytes age and how this can prevent cancer, there are still unanswered questions about certain pathways and genes involved.
35 citations
,
January 1981 February 2005 in “CRC Press eBooks” Hair color is due to active pigment cells in hair during growth.
8 citations
,
August 2015 in “Journal of dermatological science” Rhododendrol in skin-whitening products can cause skin depigmentation and immune reactions.
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.
29 citations
,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” P-cadherin is crucial for hair follicle pigmentation but not skin pigmentation.
December 2025 in “Scientific Reports” α-Mangostin can naturally lighten skin by reducing melanin.
12 citations
,
May 2019 in “Journal of cosmetic dermatology” Effective treatments for premature hair graying still require significant research.
36 citations
,
May 2025 in “Antioxidants” Lipid peroxidation worsens skin diseases but may help treat cancer.
PmtHEE is a better model for studying pigmented skin because it includes melanocytes and shows improved cell differentiation.
31 citations
,
February 2007 in “Journal of Structural Biology” Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
14 citations
,
October 2020 in “Scientific reports” Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.
11 citations
,
January 2016 in “Evidence-based Complementary and Alternative Medicine” Rice bran extract can increase melanin production and may help treat melanin deficiency.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
August 2024 in “Animal Bioscience” Exosomal miR-222-3p reduces melanin production in rabbits by targeting the SOX10 gene.
18 citations
,
March 2009 in “Skin pharmacology and physiology” Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
3 citations
,
November 2022 in “Experimental dermatology” Melatonin may inhibit melanoma growth and has potential as a cancer therapy aid, but its effects on human skin pigmentation need more research.
249 citations
,
April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
25 citations
,
January 2013 in “Colloids and surfaces. B, Biointerfaces” Hair dye colors mainly target melanin granules in black hair.
May 2021 in “Open Access Macedonian Journal of Medical Sciences” People with premature hair graying have an imbalance between harmful and protective molecules in their body, hinting that antioxidants might help.
April 2024 in “The Indonesian Biomedical Journal” Melanocyte stem cells from non-affected skin in vitiligo patients can become functional melanocytes for potential therapy.
Melanocyte transplantation can safely restore skin color, especially in stable vitiligo, but must be chosen carefully based on the disease phase.
10 citations
,
June 2009 in “Acta Biochimica Polonica” Old C57BL/6 mice with unsynchronized hair cycles show less melanin in their spleens.
October 2021 in “Nepal journal of dermatology, venereology & leprology” Melatonin is good for skin health and may help treat skin conditions.
240 citations
,
April 2011 in “Pigment Cell & Melanoma Research” Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.
74 citations
,
July 1995 in “PubMed” Lowering homocyst(e)ine levels can reverse skin and hair lightening by restoring enzyme activity needed for pigmentation.
May 2004 in “International Journal of Cosmetic Science” Melanogenesis inhibitors like kojic acid and niacinamide can reduce inflammation and pigment production in skin cells.
4 citations
,
May 2018 in “International Journal of Molecular Sciences” The research showed how melanocytes develop, move, and respond to UV light, and their stem cells' role in hair color and skin cancer risk.