34 citations
,
August 2003 in “Clinical and Experimental Dermatology” Pregnant women's hair gets thicker.
4 citations
,
February 2018 in “Journal of Cosmetic Dermatology” Platelet-rich plasma injections made hair thicker for both men and women, with a greater effect in women.
1 citations
,
December 2022 in “Clinical, cosmetic and investigational dermatology” Arab hair is generally thicker but less dense compared to other ethnicities, affecting hair disorder diagnosis and treatment.
December 2024 in “Skin Appendage Disorders” Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.
30 citations
,
December 2017 in “Clinical, Cosmetic and Investigational Dermatology” Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.
6 citations
,
May 2021 in “Aesthetic Surgery Journal” Higher cell number PRP improves hair density and diameter more than lower cell number PRP.
June 2021 in “Aesthetic Surgery Journal” PRP improves hair growth in AGA, but higher concentrations aren't significantly better than lower ones.
15 citations
,
May 1989 in “PubMed” Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
1 citations
,
September 2022 in “Aesthetic Surgery Journal”
3 citations
,
January 2021 in “Hair transplant forum international” The Hair Diameter Index (HDI) was created to help plan hair restoration surgery after finding that visual hair density is linked to hair count and thickness, not volume.
63 citations
,
October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
5 citations
,
January 2020 in “Journal of Dermatology” Temporal hair loss relates to overall scalp hair loss in women.
November 2015 in “Summit (Simon Fraser University)” Surgical stress temporarily changes hair fiber dimensions, returning to normal after four weeks.
25 citations
,
August 2015 in “Journal of cosmetic dermatology” African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.
14 citations
,
January 2015 in “Clinical Nutrition Research” MK-R7 supplement with Cistanche Tubulosa and Laminaria Japonica extracts improved hair density and scalp health without adverse effects.
January 2025 in “Science World Journal” Male and female scalp hair differ in size, density, length, curliness, pigmentation, and cuticle preservation.
July 2021 in “Indian journal of dermatopathology and diagnostic dermatology” Trichoscopy is a reliable method for diagnosing hair and scalp disorders quickly and non-invasively.
January 2017 in “Journal of Cosmetics, Dermatological Sciences and Applications” Chinese women's hair gets thinner and grayer with age, and scalp conditions change, especially after 40.
8 citations
,
October 2011 in “Anthropologischer Anzeiger” Pubic hair is thicker than axillary and scalp hair, useful for forensic identification.
5 citations
,
July 2010 in “Journal of life sciences” Gray hair has more continuous medullation and a higher medullary diameter than black hair.
November 2019 in “Quality in primary care” Scalp micropigmentation is a tattooing method that can mimic a full head of hair without surgery and has no healing time.
43 citations
,
August 2013 in “Pediatric Dermatology” Trichoscopy is good for diagnosing and monitoring hair and scalp problems in children but needs more research for certain conditions.
31 citations
,
February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
5 citations
,
January 2018 in “International Journal of Trichology” Hair strength is similar across different scalp areas, and not affected by age, gender, or hair thickness.
2 citations
,
April 2023 in “Archives of Aesthetic Plastic Surgery” The phototrichogram is better for measuring hair thickness.
April 2023 in “Acta Poloniae Pharmaceutica” Herbal extract shampoo increased certain minerals in hair and improved hair growth and scalp health.
December 2022 in “Himi, himijn tehnologijn hùrèèlèngijn èrdèm šinžilgèènij bùtèèl” Hair products with copper and zinc enriched yeast made hair thicker and denser.
September 2022 in “International Journal of Trichology” Trichoscopic measurements help determine the severity of female pattern hair loss.
Placenderm® improves scalp elasticity and hair quality safely.
April 2025 in “Clinical Dermatology Review” Trichoscopy is effective for diagnosing hair and scalp disorders without invasive biopsies.