46 citations
,
March 2015 in “Regeneration” Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
23 citations
,
April 2006 in “Skin Research and Technology” The study concluded that a special imaging technique showed women with hair loss have slower hair growth and a faulty hair replacement cycle.
19 citations
,
January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
11 citations
,
January 2004 in “Exogenous dermatology” Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.
9 citations
,
October 2024 in “Burns & Trauma” Air-liquid interface culture improves hair follicle development in skin organoids.
2 citations
,
August 2016 in “Lasers in Surgery and Medicine” Photodynamic therapy can remove nonpigmented hair in mice and might work for humans.
1 citations
,
December 2023 Hair grows in cycles and changes with age, starting from fetal development.
1 citations
,
November 2021 in “Oman Medical Journal” Cyclosporine A treatment caused rare hair repigmentation in a 65-year-old man.
1 citations
,
March 2019 in “Actas Dermo-Sifiliográficas” New cancer treatments are less harmful to hair but can still cause hair loss, color, shape, and growth changes.
July 2026 in “Frontiers in Pediatrics” An 11-year-old girl with severe hair loss regrew and repigmented her hair after JAK inhibitor treatment.
December 2024 in “Cureus” Baricitinib treatment for alopecia universalis can cause hair regrowth with unexpected whitening.
July 2024 in “Medical alphabet” Premature graying and hair changes can be treated with certain peptides and possibly targeting the endocannabinoid system.
October 2022 in “Southeast Asian journal of health professionals” Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.
September 2014 in “Springer eBooks” Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.
Neeli Bhringadi hair oil improves hair growth and reduces graying.
August 2023 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Minoxidil users may experience hair discoloration, especially with long-term use and a family history of gray hair.
December 2022 in “Cureus” Hormones significantly influence hair growth, with conditions like hirsutism and patterned hair loss linked to hormone levels; more research is needed for full understanding.
January 2014 in “Journal of Investigative Dermatology” Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.
86 citations
,
February 2012 in “Journal of Clinical Investigation” Stem cells in hair follicles are diverse and change throughout the hair cycle.
53 citations
,
May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
34 citations
,
January 1943 in “Endocrinology” Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.
23 citations
,
April 1999 in “Dermatologic Clinics” Pulsed-intense light can significantly reduce hair, with effectiveness depending on treatment number and timing, and has mild side effects.
13 citations
,
October 2002 in “Journal of Investigative Dermatology” The upper half of a human hair follicle can grow a new hair in a mouse, but success is rare.
12 citations
,
September 1981 in “Acta Dermato Venereologica” Zinc supplements improved the girl's hair growth and thickness.
11 citations
,
October 2017 in “Journal of Investigative Dermatology” Applying certain inhibitors to the skin can promote hair growth without harming cells.
3 citations
,
April 2023 in “Research Journal of Pharmacy and Technology” Calendula Officinalis extract can be used to create an effective natural hair dye.
Laser hair removal works well for light skin with dark hair but needs caution for darker skin.
February 2026 in “American Scientific Research Journal for Engineering, Technology, and Sciences (Global Society of Scientific Research and Researchers)” Gray hair requires special coloring techniques and care to maintain quality and strength.
January 2026 in “Stem Cell Reviews and Reports” Hair graying may help prevent cancer by protecting stem cells.