May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
59 citations
,
August 2010 in “Journal of The American Academy of Dermatology” Certain hairstyles and less hair oil use in African American girls can lead to scalp conditions like traction alopecia and seborrheic dermatitis.
19 citations
,
November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.
November 2025 in “Cosmetics” Centella asiatica with growth factors improves hair and scalp health.
April 2023 in “International journal of molecular sciences” People with Collagen VI-related myopathies may often have hair loss and scalp issues.
November 2015 in “Hair transplant forum international” PRP may help with hair regrowth in male pattern baldness, but more research is needed.
May 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Prostaglandin D2, found in higher levels in bald scalps, stops hair growth, suggesting that blocking its receptor could potentially treat hair loss.
89 citations
,
January 2013 in “Acta dermato-venereologica” The document concludes that dandruff and seborrheic dermatitis are linked to inflammation and skin changes, and treating them with specific shampoos can reduce these issues.
29 citations
,
March 2010 in “Journal of Dermatological Science” Wnt3a activates certain genes in hair follicle cells, including a newly discovered one, EP2, which may affect hair growth.
1 citations
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April 2018 in “Journal of Investigative Dermatology” People respond differently to hair loss treatment with PRP because of individual differences in growth factors from platelets.
July 2025 in “Journal of Investigative Dermatology” Breezula® may be more effective than Minoxidil in promoting hair growth by reducing a hair growth inhibitor.
33 citations
,
June 2017 in “Developmental Biology” Mice can correct hair follicle orientation without certain genes, but proper overall alignment needs those genes.
2 citations
,
June 2020 in “Dermatologic Surgery” Fat grafting before hair transplant may improve hair growth in scarring alopecia.
1 citations
,
June 2023 in “Jordan Journal of Applied Science - Natural Science Series” Minoxidil is more effective than Latanoprost for treating patchy alopecia areata.
May 2025 in “American Journal of Veterinary Research” Photobiomodulation did not significantly improve hair density in dogs with alopecia X.
12 citations
,
March 1958 in “American Journal of Clinical Nutrition” Shampooing can affect the loss of minerals like calcium and iron from hair.
68 citations
,
May 2018 in “PLOS Biology” Cyclosporine A may help treat hair loss by blocking a protein that inhibits hair growth.
17 citations
,
January 2011 in “Skin Research and Technology” Hair from people with seborrheic dermatitis is thicker scaled, more damaged, and thinner than healthy hair, and atomic force microscopy can help monitor the condition.
12 citations
,
June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
About 17% of people in France have dandruff, and those with dandruff are more likely to have sensitive and itchy scalps.
July 2024 in “Skin Research and Technology” The products significantly promote hair growth and maintain hair bulb health.
December 2025 in “Journal of Cosmetic Dermatology” Intralesional dutasteride improves hair growth in androgenic alopecia with minimal side effects.
January 2025 in “Bali Medical Journal” Certain bacteria are linked to female hair loss.
68 citations
,
August 2014 in “PeerJ” Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
March 2023 in “Revista médica Clínica Las Condes” The study suggests a possible increase in androgen receptors in patients with frontal fibrosing alopecia, but more research is needed.
January 2008 in “Journal of Clinical Dermatology” Integrin alpha-6 and p63 proteins may play a role in hair loss and are important for hair growth and maintenance.
72 citations
,
February 1990 in “British Journal of Clinical Pharmacology” Hair analysis can track haloperidol dosage history.
44 citations
,
September 2012 in “Archives of Dermatology” Hair breakage may be an early sign of a hair loss condition called CCCA in African American women.
9 citations
,
April 2025 in “Psychoneuroendocrinology” The occipital region is best for measuring cortisol and cortisone, while the posterior vertex is better for OEA, SEA, and PEA.
8 citations
,
October 2020 in “Infant behavior & development” Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.