13 citations
,
March 2020 in “Frontiers in cell and developmental biology” A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.
January 2026 in “Figshare” Finasteride can cause melasma, especially in people with darker skin.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
2 citations
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January 2019 in “Annals of Dermatology” Melandrium firmum extract helps mice grow hair by blocking a hair loss enzyme and changing hair growth genes.
May 2024 in “International journal of molecular sciences” Melatonin cream may help prevent skin damage but its anti-aging and hair growth effects are unclear.
23 citations
,
April 1996 in “PubMed” Vitamin D3 and parathyroid hormone-related peptide may have important uses in skin treatments.
1 citations
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April 2015 in “InTech eBooks” RAGE is a potential target for melanoma treatment, but its effectiveness is uncertain due to variable expression levels.
February 2025 in “International Journal of Molecular Sciences” Maternal melatonin improves offspring hair growth by affecting specific proteins and pathways.
2 citations
,
August 2025 in “Reports — Medical Cases Images and Videos” A rare pigmented skin tumor called melanotrichoblastoma was diagnosed in a 51-year-old woman.
70 citations
,
May 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Notch/RBP-J signaling is crucial for proper placement and timing of melanocyte development in hair follicles.
1 citations
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January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Increased PHGDH expression causes early melanin buildup in hair follicles.
March 2014 in “Medicina cutánea ibero-latino-americana” Melatonin applied to the scalp helps increase hair density in people with early hair loss.
Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.
1 citations
,
April 2008 in “Pigment Cell & Melanoma Research” Foxn1 is essential for hair pigmentation by directing pigment transfer to hair cells.
1 citations
,
December 2005 in “Al-Mağallaẗ al-ʻirāqiyyaẗ li-l-ṣaydalaẗ” Melatonin reduced oxidative stress and might improve hair growth in alopecia areata patients.
144 citations
,
December 2017 in “Pigment cell & melanoma research” Melasma is now considered a skin aging disorder caused by sun exposure in people with a genetic tendency, which impacts treatment and prevention approaches.
January 2026 in “Figshare” Finasteride can cause melasma, especially in people with darker skin.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking mTORC1 activity with rapamycin could help increase hair pigmentation and growth, potentially reversing gray hair.
4 citations
,
February 2023 in “International Journal of Stem Cells” The FTO gene hinders stem cells in hair follicles from becoming pigment cells.
22 citations
,
January 1985 in “Journal of Human Evolution/Journal of human evolution” Human skin and hair color variation is mainly due to melanin produced by a few genes, with melanin protecting against sun damage.
176 citations
,
January 2003 in “Journal of Investigative Dermatology” Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.
January 2016 in “Journal of Investigative Dermatology” Some cells may slow melanoma growth, a protein could affect skin pigmentation, a gene-silencing method might treat hair defects, skin bacteria changes likely result from eczema, and a defensin protein could help treat multiple sclerosis.
1 citations
,
January 2012 in “Human health handbooks” Hair color is determined by melanin types and gene activity.
April 2023 in “Journal of Investigative Dermatology” Blocking casein kinase 1 in skin cells can help melanocyte precursors move better, potentially helping with conditions like vitiligo or gray hair.
90 citations
,
December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
10 citations
,
January 2012 in “Journal of Oncology” The surrounding tissue plays a crucial role in the growth and spread of skin cancer.
6 citations
,
January 2007 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Gray hair regained color after thyroid hormone treatment.
2 citations
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May 2023 in “Photobiomodulation, photomedicine, and laser surgery” Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.
34 citations
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January 1943 in “Endocrinology” Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.
June 2025 in “Electronic Journal of General Medicine” Melatonin may help regrow hair, but more consistent research is needed.