3 citations,
November 2022 in “Molecules/Molecules online/Molecules annual” The substances improved hair regrowth and protected hair cells in humans and mice.
3 citations,
January 2018 in “International Journal of Cosmetic Science” Hair stiffness increased by 13.2% after caffeine treatment, validating the Stiffness-Angle Law as an effective measurement method.
2 citations,
June 2022 in “Scientific reports” Mouse hair follicle stem cells lose their ability to change into different cell types after being grown for a long time.
2 citations,
October 2010 in “PubMed” The new stiffness test works well for gels but not for sprays.
1 citations,
August 2017 in “Asian Journal of Pharmaceutical and Clinical Research” The 1% ethyl acetate fraction ethosomal gel from Nothopanax scutellarium leaves promotes hair growth but can mildly irritate the skin.
1 citations,
January 2014 in “Journal of clinical & experimental dermatology research” Naringi crenulata leaf extracts promote hair growth.
August 2024 in “Cosmetics” Peanut callus extract helps grow hair and prevent hair loss.
April 2024 in “The journal of investigative dermatology/Journal of investigative dermatology” ASH2L is essential for skin and hair development.
January 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” A specific enzyme is essential for proper hair follicle stem cell development and healthy skin.
December 2021 in “Journal of Applied Biological Chemistry” Toothpaste containing α-tocopherol acetate, l-menthol, and stevioside can promote hair growth in mice.
February 2019 in “PubMed” Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
January 2019 in “Skin appendage disorders” A woman's hair loss was linked to a rare hormone-secreting ovarian tumor, treated with surgery and hair loss medication.
April 2018 in “Journal of Investigative Dermatology” Activating Nrf2 helps wounds heal faster by increasing hair follicle stem cells.
Tissue from dog stem cells helped grow hair in mice.
August 2011 in “Clinical and Experimental Dermatology” About 30% of women feel they lose too much hair, often starting before age 40, and most can't find a reason for it.
Cyproterone slightly inhibited hair growth in castrated mice, while tamoxifen significantly inhibited hair growth in castrated mice but not in normal mice.
46 citations,
March 2019 in “Journal of Pineal Research” Melatonin improves cashmere goat hair growth and quality by increasing antioxidants and reducing cell death.
4 citations,
March 1989 in “The BMJ” Naproxen is not the cause of hair loss in a child; it's due to a toxic event with expected hair regrowth.
3 citations,
April 2011 in “Microscopy research and technique” Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.
2 citations,
August 2012 in “Aesthetic Plastic Surgery” The letter argues that blaming synthetic hair implants for scalp cancer based on one report is biased and possibly coincidental.
1 citations,
March 2020 in “Current Science” Most people in the surveyed area experience hair loss, but they are not aware of the role of diet, iron, hormones, genetics, and possibly water quality in causing it.
1 citations,
December 1972 in “Journal of Colloid and Interface Science” Ethanol spreads well on hair at low humidity but less so at higher humidity due to water condensation.
January 2024 in “Journal of cutaneous and aesthetic surgery” Scalp injuries and harsh hair care can cause severe hair matting in children.
April 2023 in “International Journal of Pharmaceutics” Melatonin in a special emulsion can help treat hair loss more effectively.
21 citations,
January 1991 in “Dermatology” Men with male pattern hair loss have different levels of certain hormones compared to men without hair loss.
141 citations,
January 1984 in “Journal of The American Academy of Dermatology” Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.
15 citations,
May 2003 in “American Journal of Kidney Diseases” A hemodialysis patient's hair loss was caused by the drug tinzaparin but stopped after switching to a different drug.
26 citations,
February 2011 in “Anais Brasileiros De Dermatologia” Polycystic Ovary Syndrome can cause hair loss and skin issues, and early treatment is important for preventing complications.
4 citations,
February 2018 in “World journal of surgical oncology” A young woman with kidney cancer experienced rare hair loss from a cancer drug and unusual cancer spread, suggesting early drug treatment might reduce spread and prolong survival.
May 2021 in “British Small Animal Veterinary Association eBooks” If a dog's skin tests are normal but it has hair loss, consider other non-endocrine causes and choose tests based on the hair loss pattern.