April 2018 in “Journal of Investigative Dermatology” Fetuin A may increase collagen production and promote scarring.
April 2018 in “Journal of Investigative Dermatology” Older mice healed wounds better but lost more weight and might have weaker immune systems afterward.
November 2001 in “Dermatologic Surgery” Galea fixation is a safe and effective way to remove bald scalp with minimal scarring and reduced stretch-back.
June 2020 in “Journal of Investigative Dermatology” Hair growth treatment results vary because each patient's platelets release different levels of growth factors.
7 citations
,
July 2025 in “The Journal of Physiology” C-tactile nerves are sensitive to hair movement.
July 2023 in “Research Square (Research Square)” Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.
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.
7 citations
,
August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
October 2024 in “Skin Appendage Disorders” Some people grow more hair on one side of their scalp, possibly due to genetics, behavior, or environment.
42 citations
,
February 2017 in “Scientific Reports” Researchers found a way to create cells from stem cells that act like human cells important for hair growth and could be used for hair regeneration treatments.
36 citations
,
October 2016 in “Bone” A male with aromatase deficiency improved bone health with estradiol treatment.
32 citations
,
November 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Most women preferred the 1% pyrithione zinc shampoo for better hair smoothness and less frizz while controlling dandruff.
14 citations
,
October 2000 in “Genomics” Rat dermal papilla cells have unique genes crucial for hair growth.
11 citations
,
January 2013 in “Postępy Dermatologii i Alergologii” The conclusion is that a combination of noninvasive treatments and lifestyle changes can improve skin health during menopause.
4 citations
,
May 2021 in “Journal of The American Academy of Dermatology” There's no significant genetic link between male pattern baldness and COVID-19.
3 citations
,
September 2018 in “Journal of Biomaterials Science, Polymer Edition” Different materials affect the growth of brain cells and fibroblasts, with matrigel being best for brain cell growth.
2 citations
,
February 2021 in “Brain Research” Testosterone affects blood pressure control and inflammation in male rats with endotoxic shock, and blocking certain hormones may help treat it.
April 2024 in “The journal of phytopharmacology” Orchid callus extract can help hair grow and may be used in eco-friendly hair products.
January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
September 2025 in “International Journal of Cosmetic Science” Friction causes hair breakage during combing, and fragment count predicts hair strength.
October 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Root hair growth slows under force, confirming a model of cell wall mechanics.
49 citations
,
June 2004 in “Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences” Human hair becomes weaker and stretches more easily at higher temperatures.
9 citations
,
March 2005 in “International Journal of Cosmetic Science” The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
39 citations
,
July 2015 in “British Journal of Dermatology” The pseudo 'fringe sign' can also appear in frontal fibrosing alopecia, not just in traction alopecia, showing that this condition may be more common than thought.
November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
3 citations
,
July 2003 in “PubMed” The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
January 2025 in “SSRN Electronic Journal”
16 citations
,
April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
January 2013 in “Wool textile journal”