TLDR The study found that most donor sites are good for hairline restoration in Southeast Asian women, but hair characteristics should match for a natural look, and aging can reduce hair density and diameter.
In the 2018 study involving 101 Southeast Asian female volunteers, researchers found that hair density at the hairline ranged from 69.82 to 135.2 hairs/cm² and hair diameter from 72.09 to 80.07 µm, while donor hair density ranged from 98.89 to 152.19 hairs/cm² with hair diameter between 76.80 to 81.11 µm. Aging was shown to affect hair density and diameter at the donor area, with a decline in both metrics at some donor sites. The study concluded that all donor sites except the neck region were suitable for midfrontal hairline restoration, and the nape was appropriate for the frontotemporal area, temple peak, and sideburns. Additionally, the average hairs per follicular unit were 1.95 in the donor area and 1.48 at the midline, with a decrease in hair density and diameter with age, especially at the temple and parietal regions. The hairline was less affected by aging than the donor area, and the study highlighted the importance of matching hair characteristics between donor and recipient sites for natural-looking hairline restoration. Further research was suggested to assess the aging effect on all scalp areas.
9 citations,
March 2017 in “Dermatologic Surgery” Asian men with hair loss have different follicular densities: East/Southeast 61.1, South 63.5, West 63.6 FU/cm².
3 citations,
September 2016 in “Hair transplant forum international” Southeast and East Asian men typically have straighter hairlines with less recession and lower hair density, which is important to consider in hair restoration surgery.
11 citations,
January 2015 in “Annals of Dermatology” Using a hair removal laser can make hairs finer for better hairline correction in hair transplants, with most patients happy and few side effects.
61 citations,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
31 citations,
March 2011 in “Dermatologic Surgery” The new hairline classification and correction methods can improve the appearance of Asian women with wide or M-shaped foreheads.
58 citations,
April 2009 in “Dermatologic Surgery” Most women have a widow's peak and specific hairline features useful for designing hair restoration surgery.
76 citations,
December 2006 in “Journal of Dermatological Science” Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.
3 citations,
October 2021 in “Indian Journal of Plastic Surgery” Not all hair loss patients are suitable for hair transplant due to various conditions like unstable hair loss, insufficient hair loss, very young age, unrealistic expectations, certain psychological disorders, and medical unfitness.
July 2002 in “Journal of cosmetic dermatology” Hair loss can be treated with medications like finasteride and surgical methods like hair transplants.
23 citations,
March 2001 in “Clinics in Dermatology” Hair restoration surgery techniques have evolved, with focus on patient selection and realistic goals, and future advancements may include cloning and gene therapy.
