32 citations
,
November 2012 in “Aesthetic Surgery Journal” Hair restoration surgery has advanced, focusing on natural results and may improve further with new techniques and therapies.
31 citations
,
February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
27 citations
,
June 2023 in “Nature” Senescent melanocytes can boost hair growth by activating hair stem cells.
27 citations
,
September 2017 in “Journal of Medicinal Food” Annurca apple supplement safely increases hair growth and keratin in humans.
20 citations
,
April 2016 in “Journal of Cosmetic Dermatology” Methyl vanillate spray increases hair count and hair mass in women with hair loss.
20 citations
,
November 2013 in “The Open Cancer Journal” Hair loss from cancer treatment is very distressing for women due to its impact on self-image and social stigma.
18 citations
,
May 2016 in “Annals of Medicine” The article concludes that correctly diagnosing systemic causes of hair loss requires a detailed clinical evaluation and a systematic diagnostic approach.
14 citations
,
January 2020 in “PloS one” Timing of light therapy affects horse coat growth, with photoperiod being crucial.
11 citations
,
January 2018 in “Royal Society Open Science” Scientists found genes linked to the growth of high-quality brush hair in Chinese Haimen goats.
11 citations
,
December 2016 in “Frontiers in Psychology” Hair style affects perceptions of age, health, and attractiveness more than hair color does.
6 citations
,
May 2022 in “Frontiers in physiology” Injecting CHIR-99021 into goose embryos improves feather growth by changing gene activity and energy processes.
3 citations
,
May 2010 in “Archives of dermatology” Herpes zoster infection can cause permanent hair color change in the affected area.
2 citations
,
January 2017 in “Journal of Pigmentary Disorders” Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.
August 2025 in “International Journal of Research in Dermatology” Better standardization and transparency in statistical reporting are needed to improve hair care research quality.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
15 citations
,
June 2011 in “British Journal of Dermatology” No link found between aromatase gene and female hair loss.
11 citations
,
August 2019 in “Journal of Molecular Histology” NFIC helps rat dental cells grow and turn into bone-like cells.
8 citations
,
October 2020 in “Infant behavior & development” Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.
1 citations
,
December 2022 in “Middle East Journal of Science” Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
97 citations
,
March 2002 in “Molecular and cellular biology” Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.
501 citations
,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
178 citations
,
October 2001 in “Genes & Development” The mutated hairless gene causes hair loss by acting as a new type of corepressor affecting thyroid hormone receptors.
43 citations
,
October 2002 in “International Journal of Cosmetic Science” All three shampoos reduced dandruff and hair loss, but ketoconazole and piroctone olamine also made hair thicker.
18 citations
,
March 2004 in “Clinics in Dermatology” Lupus can cause hair loss and nail changes, with treatments available for both.
13 citations
,
September 2016 in “Cosmetics” Hair care cosmetics affect hair health; know products, ingredients, and procedures.
December 2025 in “Aesthetic Cosmetology and Medicine” Injectable platelet-rich fibrin therapy improved hair and scalp conditions in women with excessive hair loss.
Hair analysis can help identify specific minerals and amino acids linked to various diseases.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
May 2023 in “Brazilian Journal of Animal and Environmental Research” Photobiomodulation effectively treats hair loss in dogs with black hair follicular dysplasia.