February 2013 in “Journal of the American Academy of Dermatology” Iron supplements may reverse premature hair graying caused by iron deficiency.
November 2024 in “Jurnal Biomedika dan Kesehatan” Premature graying in young children can affect self-esteem, and addressing underlying health issues may reverse it.
July 2025 in “Dermatology Practical & Conceptual” Topical eyedrops may cause eyelash whitening and skin lightening around the eyes.
Hair turning darker can be a sign of skin cancer.
4 citations
,
January 2016 in “Annals of dermatology/Annals of Dermatology” Iron supplements can restore normal hair color in cases of premature graying linked to iron deficiency.
4 citations
,
September 1944 in “The American Journal of the Medical Sciences”
7 citations
,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” T-cell reconstitution after thymus transplantation can cause hair whitening and loss.
15 citations
,
June 1993 in “Archives of Dermatology” A 22-year-old's gray hair partially turned back to its original color without known causes.
June 2025 in “Bioinformation” Premature greying of hair in young adults is linked to genetics, lifestyle, and nutrient deficiencies.
9 citations
,
July 2016 in “The Journal of Dermatology” An 82-year-old man's white hair regained color after taking etretinate for psoriasis.
9 citations
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September 2009 in “Journal of Cutaneous Medicine and Surgery” UV light causes skin color loss in bald areas; wear a cap and use sunscreen.
Prussian Blue causes hair cuticles to detach, weakening the hair.
January 1974 in “OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)” Oxidative stress causes hair graying by damaging hair follicle melanocytes more than skin melanocytes.
July 2025 in “Pigment International” Follicular vitiligo causes hair to gray without skin color loss.
1 citations
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January 2009 in “Journal of S C C J” Changing disulfide bonds in human hair affects its melting behavior and thermal stability.
62 citations
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December 1966 in “Endocrinology” Injecting α-MSH made mice's hair turn black.
12 citations
,
November 1945 in “Archives of dermatology” Transplanted skin on hooded rats often grows white hair instead of black.
23 citations
,
April 2002 in “Journal of the American Academy of Dermatology” Depigmented hair regrowth after alopecia areata can be permanent.
5 citations
,
December 2019 in “JAAD Case Reports” A woman experienced rapid hair loss after taking albendazole, but it started to improve when she stopped the medication.
August 2022 in “Contact dermatitis” Severe allergic reactions to hair dye can trigger hair loss and may be linked to multiple sclerosis.
74 citations
,
July 1995 in “PubMed” Lowering homocyst(e)ine levels can reverse skin and hair lightening by restoring enzyme activity needed for pigmentation.
2 citations
,
February 2016 in “Irish journal of psychological medicine” Mirtazapine may cause hair loss and change hair color, but stopping the drug can reverse these effects.
8 citations
,
August 2015 in “Journal of dermatological science” Rhododendrol in skin-whitening products can cause skin depigmentation and immune reactions.
September 1941 in “The Science News-Letter” July 2022 in “Journal of Investigative Dermatology” The combination of a plant extract and a peptide can increase hair pigmentation and may reverse greying.
October 2024 in “Journal of the Pakistan Medical Association” Genetics, nutrition, lifestyle, and hormones affect early grey hair, but more research is needed.
1 citations
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March 2017 in “Archives of Plastic Surgery” A new method using gentian violet dye makes it easier to see and work with white hair in hair transplant surgeries.
54 citations
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September 2000 in “Archives of dermatology” A hair-straightening product caused widespread hair loss and scalp injuries, mainly affecting African American women.
1 citations
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September 2024 in “Quality in Sport” Hair graying can be delayed or prevented with antioxidants, lifestyle changes, and genetic therapy.
2 citations
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March 2017 in “Sultan Qaboos University medical journal” An infant had two different natural hair colors on the scalp with no health issues.