16 citations
,
December 2016 in “Skin appendage disorders” Nickel, cobalt, balsam of Peru, fragrance mix, carba mix, and propylene glycol are common allergens causing scalp contact dermatitis.
21 citations
,
October 2011 in “British Journal of Dermatology” Testosterone therapy helped 63% of androgen-deficient women grow scalp hair, but more research is needed.
59 citations
,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces scalp DHT levels, potentially treating male pattern baldness.
51 citations
,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
38 citations
,
June 2005 in “Contact Dermatitis” Patient had scalp allergy from minoxidil; test helped identify cause and suggest alternative treatments.
33 citations
,
January 1997 in “Endocrinology” Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.
19 citations
,
January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
16 citations
,
June 2017 in “PLoS ONE” A 6-group hair classification is more reliable for drug testing than an 8-group system.
March 2026 in “International Journal of Research and Review” Rosmarinus officinalis tincture significantly improves hair volume and density.
July 2023 in “Zenodo (CERN European Organization for Nuclear Research)” Ketoconazole effectively treated a scalp infection in a 6-year-old boy, leading to full recovery.
August 1993 in “Journal of Dermatological Science” Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.
10 citations
,
November 1997 in “British Journal of Dermatology” RU58841 significantly increases hair growth rate and initiates more hair cycles, but doesn't affect hair thickness, suggesting it could be a new treatment for baldness.
January 2009 in “Fashion business” Ayurvedic oils effectively reduce scalp bacteria and improve hair health.
May 2013 in “Journal of the Egyptian Women's Dermatologic Society (Print)” High aldosterone and free testosterone levels link to female hair loss; testing aldosterone may predict hypertension risk.
61 citations
,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” 9 citations
,
November 1997 in “British Journal of Dermatology” 5 citations
,
July 2024 in “International Journal of Women’s Dermatology” Scalp allergic reactions are often missed, needing specific tests and avoiding certain hair products for proper treatment.
3 citations
,
February 2018 in “Australian Veterinary Journal” Veterinarians could test positive for ketamine from work exposure, not just substance abuse.
35 citations
,
January 2020 in “Journal of the American Academy of Dermatology” Avoiding certain allergens in personal care products may improve symptoms for some patients with lichen planopilaris or frontal fibrosing alopecia.
33 citations
,
December 2013 in “Journal of cutaneous pathology” A fungal infection can look like a different scalp condition in teens, leading to wrong treatment until proper tests are done.
21 citations
,
December 2012 in “Maturitas” Testosterone implants in women require pharmacological dosing to be effective and are generally safe and well-tolerated.
14 citations
,
January 2015 in “Skin appendage disorders” Minoxidil treatment for hair loss can cause scalp allergy and severe hair loss.
7 citations
,
January 2009 in “International Journal of Trichology” Dermoscopy can't help doctors identify scalp irritation caused by topical minoxidil.
6 citations
,
February 1974 in “The BMJ” The document concludes that scalp disorders can be treated with hair washing, specific shampoos, medications, and sometimes surgery or hair transplants, but hereditary baldness is untreatable.
January 2023 in “Indian dermatology online journal” Leukemia can sometimes appear as unusual skin issues in children.
July 2025 in “Journal of Dermatology for Physician Assistants” Specific tests may help diagnose alopecia, but their treatment impact is unclear.
November 2024 in “International Journal of Cosmetic Science” Botanical extracts can improve scalp health by reducing oxidative stress.
March 2023 in “International journal of trichology” Six genetic conditions are often linked to complete scalp hair loss in children.
July 2021 in “CRC Press eBooks” Healthy scalp is crucial for hair growth and preventing hair loss.