June 2023 in “Dermatology online journal” A person with thyroid problems had rare, swollen, bald spots on their scalp caused by a condition usually found on the shins.
20 citations
,
July 1990 in “Clinical and experimental dermatology” Taking cyproterone acetate and ethinyl oestradiol for hair loss can lower vitamin B12 levels in women.
2 citations
,
October 2016 Chemotherapy and radiotherapy can cause skin side effects like rashes, hair loss, and nail changes, which are usually managed with conservative treatments.
April 2019 in “Journal of Investigative Dermatology” Caffeine can protect scalp hair follicles from damage caused by UV radiation.
April 2024 in “Bioscience trends” Higher levels of certain DNAs in blood may indicate hair follicle damage in alopecia areata patients.
October 2018 in “Annals of oncology” Topical calcitriol (BPM31543) is safe for preventing hair loss from chemotherapy and shows some effectiveness.
12 citations
,
December 1962 in “Journal of Investigative Dermatology” 2 citations
,
January 1968 in “PubMed” Sulfur-containing radioprotectors can protect hair from X-ray damage if given before exposure but worsen damage if given after.
5 citations
,
January 1998 in “Journal of dermatological treatment” Vitamin D3 ointments are effective and safe for treating scalp psoriasis.
Different hair growth phases affect how follicles respond to X-rays, and hormones like testosterone and dihydrotestosterone play a key role in baldness; transplanted hair can grow on bald scalp areas.
October 2025 in “Dermatology and Therapy” Ritlecitinib is being tested for effectiveness and safety in treating severe alopecia areata.
June 2025 in “Journal of Kufa for Chemical Sciences” Higher adrenaline and prolactin levels may indicate stress-related alopecia areata in adults.
January 2026 in “Cell and Tissue Biology” TS-13 speeds up hair regrowth after chemotherapy without affecting treatment effectiveness.
March 2024 in “Asian journal of medical sciences” Ring block anesthesia is the best method for PRP scalp injections due to low pain and high patient acceptance.
March 2026 in “Critical Care Medicine” Hair restoration can cause severe seizures due to combined drug toxicity.
4 citations
,
December 2021 in “Journal of Clinical Nursing” Comprehensive information and trained nurses are crucial for a better scalp cooling experience during chemotherapy.
March 2020 in “Journal of Burn Care & Research” Hair highlighting can cause severe scalp burns, and surgery with psychological support improves recovery.
80 citations
,
January 2011 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Hair cortisol levels can reflect salivary cortisol levels in humans.
66 citations
,
January 1987 in “Journal of Investigative Dermatology” Coal tar shampoo increases enzyme activity in hair follicles, enhancing carcinogen binding to DNA.
19 citations
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July 2005 in “Steroids” Testosterone increases 3α-androstanediol levels, which can be blocked by finasteride.
August 2003 in “Special report” TrichoScan offers a painless way to analyze and manage hair loss.
November 2025 in “Open Access CRIS of the University of Bern” Androgen levels are more linked to body size in boys than girls.
227 citations
,
January 1998 in “Journal of Endocrinology” Cells from balding scalps have more androgen receptors than cells from non-balding scalps.
September 2023 in “Journal of Cosmetic Dermatology” Lower vitamin D levels are linked to higher CRP levels in people with a type of hair loss called alopecia areata.
People with hair loss have more heavy metals in their hair.
June 2024 in “Nature Cell and Science” The Scalp Coverage Scoring method reliably measures hair density from images.
47 citations
,
July 2023 in “Nature Genetics”
23 citations
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January 2016 in “Transgender health” Hormone therapy with estradiol and spironolactone can regrow scalp hair in transgender women by lowering testosterone to female levels.
1 citations
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January 1997 in “Journal of Investigative Dermatology” RU58841, an androgen receptor blocker, significantly increased hair density, thickness, and length in monkeys when applied topically daily for several months.
December 2023 in “Journal of dermatology” Adults and adolescents with severe alopecia areata are willing to take significant health risks for a better chance of hair regrowth.