35 citations
,
January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
9 citations
,
May 2018 in “Photochemistry and photobiology” The Hair BB Cream effectively prevents UV damage and improves hair health.
January 2021 in “Hair therapy & transplantation”
1 citations
,
October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
3 citations
,
August 2004 in “Veterinary Dermatology” Supplementing vitamins and minerals prevented hair loss in Icelandic horses.
143 citations
,
January 2013 in “Dermatologic surgery” In-office laser hair removal works well long-term, especially Nd:YAG for darker skin, but home devices need more testing.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
64 citations
,
April 1972 in “American Journal of Clinical Nutrition” Hair chromium levels reflect nutritional status after standard washing.
1 citations
,
October 2021 in “Cosmoderma” Hair transplants can work for permanent hair loss if the condition is stable and done carefully.
3 citations
,
August 2019 in “JAAD Case Reports” Temporary hair loss can occur after 5-fluorouracil treatment for keloids.
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.
11 citations
,
December 2016 in “Frontiers in Psychology” Hair style affects perceptions of age, health, and attractiveness more than hair color does.
3 citations
,
July 2017 in “Endogenous locus-driven H-Ras G12V expression induces senescence-like phenotype in primary fibroblasts of the Costello syndrome mouse model” Mouse hair follicle stem cells have a flexible chromatin state that supports skin health and hair growth.
January 2022 in “Healthy Tadulako Journal” Both extraction methods result in similar physical stability for the hair tonic.
May 2026 in “Journal of Investigative Dermatology”
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.
3 citations
,
May 2009 in “International Journal of Cosmetic Science” Relaxer treatments damage African–American hair, with commercial products causing more harm than lab-made solutions.
December 2023 in “Journal of molecular structure” Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.
February 1994 in “PubMed” Telogen effluvium is a type of temporary hair loss.
1 citations
,
September 2024 in “Quality in Sport” Hair graying can be delayed or prevented with antioxidants, lifestyle changes, and genetic therapy.
4 citations
,
October 2009 in “Skin research and technology” Colorimetry can accurately measure hair growth rates in mice.
November 2024 in “Journal of Cosmetic Dermatology” The hair serum reduced hair loss and improved hair quality in women.
April 2025 in “International Journal of Ayurveda and Pharma Research” Ayurvedic treatment can reverse premature graying and improve hair health.
73 citations
,
October 2013 in “International Journal of Cosmetic Science” Chemical hair straightening can damage hair and health, needing safer alternatives and stricter regulations.
5 citations
,
February 2012 in “Australasian Journal of Dermatology” Two red-haired men with alopecia areata regrew black hair instead of red.
May 2026 in “Jurnal Pendidikan Kimia Fisika dan Biologi” Rebonding damages hair cuticles, causing erosion and cracks.
2 citations
,
January 1999 in “Dermatology”
23 citations
,
August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
August 2023 in “Dermatology Reports” Minoxidil, a common hair treatment, may cause hair to turn grey or change color, especially with long-term use or if you have a family history of grey hair.
Using silicon circular iron on Korean women's hair increases hair thickness the most.