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.
5 citations
,
January 2004 in “Annals of Dermatology” People with androgenetic alopecia (AGA) have lower hair density and more single-hair units compared to those with normal scalps.
3 citations
,
November 2018 in “Hair transplant forum international” Using body hair with scalp hair for hair transplants improves density and coverage in severe hair loss cases.
June 2024 in “Nature Cell and Science” The Scalp Coverage Scoring method reliably measures hair density from images.
September 2023 in “Journal of the American Academy of Dermatology” Dermatologists can accurately detect smaller differences in hair density than previously thought.
33 citations
,
April 2005 in “British Journal of Dermatology” Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.
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.
December 2024 in “Skin Appendage Disorders” Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.
February 2026 in “Journal of Cosmetic Dermatology” A new reliable scale improves accuracy in measuring hair density and treatment response.
March 2026 in “International Journal of Research and Review” Rosmarinus officinalis tincture significantly improves hair volume and density.
May 2025 in “American Journal of Veterinary Research” Photobiomodulation did not significantly improve hair density in dogs with alopecia X.
October 2024 in “Skin Appendage Disorders” Some people grow more hair on one side of their scalp, possibly due to genetics, behavior, or environment.
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.
1 citations
,
September 2022 in “Aesthetic Surgery Journal”
5 citations
,
January 2020 in “Journal of Dermatology” Temporal hair loss relates to overall scalp hair loss in women.
2 citations
,
January 2019 in “PubMed” The study concluded that certain areas of the scalp and beard are safe for hair transplant donor sites in Indian men.
24 citations
,
September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
5 citations
,
March 2017 in “Laser Physics Letters” Different scalp imaging methods are important for studying hair and scalp health and require more volunteers for better evaluation.
2 citations
,
January 2016 in “US Endocrinology” Scalp hair thinning in women with PCOS is linked to metabolic issues like abnormal glucose tolerance, high LDL, and skipped meals.
April 2023 in “Acta Poloniae Pharmaceutica” Herbal extract shampoo increased certain minerals in hair and improved hair growth and scalp health.
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.
1 citations
,
July 2022 in “Functional foods in health and disease/Journal of functional foods in health & disease” Taking a probiotic supplement twice a day improved hair growth, skin hydration, and metabolic health in adults at risk of metabolic syndrome.
November 2024 in “Journal of Clinical Medicine” The treatment improved hair thickness, shine, and reduced hair loss effectively.
129 citations
,
June 1999 in “Archives of Dermatology” African Americans have less hair density than whites.
41 citations
,
January 2020 in “BioMed Research International” Micrografts improve hair density and thickness without side effects.
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.
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.
24 citations
,
June 2019 in “Journal of Cosmetic Dermatology” Scalp microneedling may improve hair density and thickness for various alopecia types.
24 citations
,
December 2011 in “Journal of The American Academy of Dermatology” Caucasian hair is denser, but Asian hair is thicker in female pattern hair loss patients.