June 2025 in “Clinical and Experimental Dermatology” A 76-year-old man's grey hair turned back to its original color after radiotherapy.
Ceiba leaf extracts significantly speed up hair growth.
February 2025 in “International Journal of Cosmetic Science” A new amino acid derivative, ATS, improves hair texture and moisture, making it easier to straighten curly hair.
January 2021 in “CRC Press eBooks” Hair loss can have various causes and treatments vary in effectiveness.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
28 citations
,
May 2014 in “PubMed” Higher stress levels may be linked to hair loss in rhesus macaques.
11 citations
,
January 2004 in “Exogenous dermatology” Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.
3 citations
,
March 2010 in “International Journal of Cosmetic Science” Functionalized silicones improve hair appearance, combing, and manageability.
July 2026 in “Preprints.org” A cysteamine-derived compound helps hair stay straight in high humidity.
Modern hair styling products don't repair hair but improve its surface and stability.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
January 1991 in “Journal of Society of Cosmetic Chemists of Japan” Hair treatments can damage hair by changing its chemical content.
25 citations
,
January 2011 in “Pharmacognosy magazine” Nardostachys jatamansi DC compounds help promote hair growth.
1 citations
,
January 2022 in “Rasayan journal of Chemistry” Albizia saponaria bark ethanol extract, particularly at 15%, promotes hair growth in rabbits.
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.
January 2023 in “Journal of cosmetic dermatology” Fractional lasers effectively treat alopecia areata, especially when combined with minoxidil or cortisol.
55 citations
,
February 2014 in “Journal of Structural Biology” Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
26 citations
,
November 2016 in “European Journal of Clinical Pharmacology” Valproic acid helps delay hair loss and increases survival time for high-grade glioma patients undergoing radiation therapy.
13 citations
,
June 2005 in “PubMed” Green tea compounds significantly increased hair regrowth in some mice.
11 citations
,
October 2021 in “Carbohydrate Polymers” Ginkgo biloba polysaccharides may reduce inflammation and promote hair growth in mice with hair loss.
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
8 citations
,
November 2019 in “Journal of Trace Elements in Medicine and Biology” Higher hair iron levels are linked to changes in brain structure and function.
6 citations
,
January 2023 in “npj regenerative medicine” Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.
6 citations
,
November 1960 in “Experimental Biology and Medicine” Hair growth stages don't significantly change lipid content in mouse skin.
5 citations
,
September 2020 in “Molecules” Extracts from three Polynesian plants were found to promote hair growth by affecting cell growth and gene expression related to hair.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
2 citations
,
September 2020 in “International journal of radiology & radiation therapy” Radiotherapy can cause rare changes in hair color, which should be discussed with patients.
July 2025 in “The Egyptian Journal of Hospital Medicine” Preparing scars with PRP or CO₂ laser improves hair transplant success.
Eclipta alba L. (Urang-Aring) can help treat hair loss.
September 2023 in “Nature Communications” Rare genetic variants in five specific genes are linked to male-pattern hair loss but only account for a small part of the risk.