Low doses of certain Chinese herbs can promote hair growth, while high doses may inhibit it.
January 2022 in “Journal of Cosmetic Dermatology” Placebo effects vary in hair loss trials, with split-scalp trials showing higher hair density after 6 months compared to whole-head trials.
January 1981 in “Springer eBooks” 234 citations,
December 1996 in “Journal of The American Academy of Dermatology” Middle-aged women with chronic telogen effluvium experience increased hair shedding but usually don't get significantly thinner hair.
124 citations,
April 1992 in “Journal of Endocrinology/Journal of endocrinology” Beard hair follicles have more androgen receptors than non-balding scalp hair follicles.
81 citations,
August 2014 in “Lasers in Surgery and Medicine” Red light therapy is safe and effectively increases hair growth in women with hair loss.
55 citations,
October 2003 in “Dermatologic Clinics” Different hair care practices and conditions affect African American hair and scalp health, requiring specialized knowledge for treatment.
51 citations,
October 2002 in “Archives of dermatology” The document does not conclude the effectiveness of the 800-nm pulsed-diode laser for treating scalp cellulitis.
47 citations,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
46 citations,
June 2018 in “American Journal of Clinical Dermatology” Hair loss is common in lupus patients and can be permanent or reversible, depending on the type, with various treatments available.
45 citations,
January 2015 in “Dermatology” Hair loss in secondary syphilis is more common than thought and can be reversed with antibiotics.
44 citations,
August 2010 in “Lupus” Lupus can affect the scalp and nails, often causing hair loss and nail damage, and needs early aggressive treatment to prevent permanent damage.
44 citations,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
36 citations,
January 2012 in “Dermatology” Stopping gefitinib improved scalp condition in a woman with lung cancer.
36 citations,
April 2005 in “British journal of dermatology/British journal of dermatology, Supplement” Radiation therapy is an effective treatment for severe scalp cellulitis with mild side effects and no long-term complications.
31 citations,
February 2019 in “International Journal of Cosmetic Science” Caffeine applied to the scalp can protect hair follicles from UV damage.
26 citations,
March 2017 in “Aesthetic plastic surgery” Accidental injection of hyaluronic acid caused temporary hair loss and skin damage, but treatment restored hair and healed the skin.
25 citations,
June 2018 in “Clinical and Experimental Dermatology” Combined microneedling and minoxidil improves hair growth more than minoxidil alone.
24 citations,
March 1995 in “British Journal of Dermatology” Etretinate therapy can cause hair loss by disrupting the hair growth cycle.
23 citations,
November 2007 in “Journal of cutaneous medicine and surgery” Topical tacrolimus effectively treated scalp lesions, reversed skin atrophy, and promoted hair growth.
22 citations,
May 2002 in “Skin Research and Technology” CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.
21 citations,
January 2015 in “Dermatologic Therapy” Latanoprost may cause scalp inflammation and delayed healing.
19 citations,
August 2018 in “International Journal of Dermatology” Lupus panniculitis of the scalp causes linear hair loss and needs ongoing treatment to prevent recurrence and lupus.
19 citations,
May 2009 in “Pediatric Dermatology” A 5-year-old girl's scalp scarring and hair loss from lupus improved with specific medications.
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.
18 citations,
July 2018 in “Skin appendage disorders” Trichoscopy helps diagnose hair and scalp disorders in dark-skinned people by identifying unique patterns.
16 citations,
January 2001 in “Clinical and Experimental Dermatology” Photodynamic therapy was effective in treating multiple scalp basal cell carcinomas with minimal side effects and good cosmetic results.
15 citations,
November 2016 in “Journal of The American Academy of Dermatology” Exclamation mark hairs suggest early scalp disease, while white dots indicate it's chronic.
15 citations,
May 1989 in “PubMed” Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
14 citations,
February 2020 in “Scientific reports” Telocytes in the scalp may help with skin regeneration and maintenance.