November 2022 in “Journal of Investigative Dermatology” Blocking mTORC1 activity could increase hair pigmentation and potentially reverse greying.
January 2016 in “UNESP Institutional Repository (São Paulo State University)” Melasma results from changes in the skin's pigment and structure, not just pigment cell growth.
489 citations
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June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
139 citations
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October 2005 in “Journal of Investigative Dermatology” The nail matrix has a reduced immune response, protecting it from autoimmunity.
102 citations
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December 2017 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Restoring hair bulb immune privilege is crucial for managing alopecia areata.
19 citations
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May 1992 in “International Journal of Dermatology” Some alternative vitiligo treatments show promise, but none are as effective as psoralens and UVA.
12 citations
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September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
9 citations
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January 2005 in “Experimental Dermatology” Human hair follicles can produce stress hormones like the body's main stress response system.
3 citations
,
January 2021 in “FEBS open bio” Camellia japonica extract may improve scalp health and promote hair growth.
32 citations
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October 2004 in “Experimental Dermatology” α-MSH may help treat skin inflammation and fibrosis.
1 citations
,
January 2005 in “Experimental Dermatology” MC-1R in skin cells may influence inflammation and collagen production.
1 citations
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September 2004 in “Experimental Dermatology” MC-1R is present in skin cells and may help reduce inflammation.
February 2025 in “Endocrine Reviews” Hormones affect skin aging, but only topical retinoids and estrogens are used in treatments now.
April 2023 in “Journal of Investigative Dermatology” The research developed methods to test drugs that could protect and restore hair follicle protection in a hair loss condition.
155 citations
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December 2002 in “Journal of Investigative Dermatology” Thyroid-related genes are active in skin cells and may affect autoimmune conditions.
23 citations
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November 2007 in “Actas Dermo-Sifiliográficas” Thyroid hormone (T3) may reverse gray hair by stimulating hair growth.
3 citations
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October 2023 in “Journal of Investigative Dermatology” Aged skin cells can help hair growth by stimulating stem cells.
January 2006 in “Carl von Ossiezky University of Oldenburg” Unpigmented keratinocytes absorb substances faster, while melanocytes bind more strongly to melanin.
86 citations
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August 2000 in “Pigment cell research” Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.
14 citations
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April 2005 in “Experimental Dermatology” Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
June 2020 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Stress causes hair graying by overactivating nerves that deplete color-giving stem cells.
20 citations
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December 2013 in “PubMed” Quercetin boosts melanin production in mouse hair follicles.
209 citations
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September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
15 citations
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January 2013 in “Dermatologic Surgery” Epithelial grafting can effectively repigment white hair in vitiligo patients.
3 citations
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December 2023 in “Biomedicines” PRP therapy helps skin heal and improve by promoting cell growth and repair.
January 2018 in “Stem cell biology and regenerative medicine” The nucleus is key in controlling skin growth and repair by coordinating signals, gene regulators, and epigenetic changes.
June 2025 in “Clinical Cosmetic and Investigational Dermatology” Gray hair can potentially be managed or reversed with treatments that boost melanin production and address nutritional deficiencies.
13 citations
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July 2012 in “Pigment Cell & Melanoma Research” A mutation in the Adam10 gene causes freckle-like spots on Hairless mice.
NB-UVB phototherapy is an effective and safe treatment for vitiligo, especially on hands and feet, and can be improved with tacrolimus.
1 citations
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March 2025 in “Journal of Cosmetic Dermatology” Exosomes and laser therapy can help regrow and repigment hair.