TLDR Minoxidil treatment increased hair density in a young Asian girl with short anagen syndrome, but didn't improve hair length or thickness.
In 2016, a case study was conducted on a 7-year-old Asian girl with short anagen syndrome (SAS), a rare condition characterized by short, thin hair. The girl's hair only grew to 2 cm and had a decreased density of 86/cm². After being treated with 2% minoxidil solution twice per day for 7 months, her hair density increased to 109/cm², although the hair length did not elongate and the average hair caliber decreased to 25 µm. This case was the second reported instance of SAS in an Asian patient and demonstrated that 2% minoxidil topical solution can increase hair density in SAS patients, even though it does not improve hair length and caliber.
10 citations,
May 2010 in “Journal of The American Academy of Dermatology” A 38-year-old African American woman has a rare condition that prevents her from growing long hair.
37 citations,
July 2005 in “Journal of The American Academy of Dermatology” Short anagen syndrome involves a hair growth phase lasting 1.5 years.
16 citations,
October 2003 in “Journal of The American Academy of Dermatology” A boy had unusual synchronized hair growth with short active growth phases, not fitting known hair disorders.
42 citations,
September 2000 in “British Journal of Dermatology” Some children are born with unusually short, fine hair because their hair growth phase is short, but this often gets better by itself during puberty.
13 citations,
March 2018 in “Pediatric Dermatology” Children with short anagen syndrome usually see their hair condition improve as they get older.
21 citations,
May 2016 in “The Cochrane library” Topical minoxidil helps treat female pattern hair loss, but more research needed for other treatments.
Kerascalp hair serum was found to be safe and effective in improving hair growth and strength in people with mild to moderate hair loss.
136 citations,
April 2016 in “Dermatologic Surgery” PRP treatment helps hair growth and density in androgenetic alopecia patients.
23 citations,
January 2021 in “Biomedicine & Pharmacotherapy” DHT stops hair regrowth in mice, similar to human hair loss.
