9 citations
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September 2016 in “Forensic science international” Hair area varies with age and sex, but hair index and medullary index do not.
5 citations
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March 2020 in “Cell and Tissue Banking” Injected cells show potential for hair growth.
3 citations
,
January 1994 in “Journal of Society of Cosmetic Chemists of Japan” Hair grows slower and thinner with age, but a test tonic improved growth in alopecia subjects.
2 citations
,
January 1994 in “Journal of S C C J” The study concluded that certain hair growth measurements are good indicators of baldness severity and provide a more accurate assessment than subjective grading.
September 2025 in “Journal of Veterinary and Animal Sciences” Nine hair follicle tumors were found in dogs.
Hair analysis can help identify specific minerals and amino acids linked to various diseases.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
16 citations
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January 2012 in “Asian pacific Journal of Tropical Biomedicine” The herbal cream was found to be a safe and effective alternative for hair growth, similar to minoxidil.
12 citations
,
January 1988 in “YAKUGAKU ZASSHI” Certain natural extracts can promote hair regrowth.
9 citations
,
January 1989 in “Sen'i Gakkaishi” Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.
1 citations
,
July 2017 in “Microscopy and Microanalysis” Iron oxide nanoparticles mainly enter the skin through hair follicles and sebocytes, not the dermis.
1 citations
,
January 2012 in “Indian Journal of Small Ruminants (The)” Chegu goats have two types of hair follicles, with primary ones having glands and muscles, and secondary ones lacking them.
1 citations
,
January 2010 in “Journal of Oriental Medicine” Black bean, wheat, and rice bran extracts can boost hair growth and improve hair quality.
1 citations
,
January 2008 in “Journal of Physiology & Pathology in Korean Medicine” Mylabris phalerata Pall. extracts can promote hair growth effectively at low doses.
June 2026 in “Homo Politicus (Academy of Humanities and Economics in Lodz)” The effectiveness of ingredients in anti-hair loss products varies, and clinical trials are crucial to determine their success.
February 2026 in “International Journal of Basic & Clinical Pharmacology” Cosmetovigilance and clinical pharmacists can enhance safety in cosmetic treatments, especially for those with diabetes.
January 1995 in “Equilibrium Research” Birds can regenerate inner ear hair cells from supporting cells, and mammals show potential for similar regeneration.
January 1987 in “Data Archiving and Networked Services (DANS)” Hair follicles are useful for studying human cell changes.
September 1978 in “PubMed” Chondroitin sulphate is more abundant than hyaluronic acid in skin and hair samples, except in gamma-keratosis.
6 citations
,
May 1987 in “Acta dermato-venereologica” Syphilis patients showed abnormal hair root changes, with no difference between primary and secondary stages.
March 2023 in “Research journal of pharmacy and technology” The herbal hair oil helped hair grow in mice.
191 citations
,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
54 citations
,
January 2018 in “Scientific reports” Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.
January 2022 in “Springer eBooks” Fibroblast growth factors are crucial for hair follicle development and regeneration.
January 2012 in “TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN” Human hair can be used to study mineral changes from long-term space flight.
40 citations
,
July 1989 in “Journal of Cell Science” Rat hair follicles can be kept alive in a lab for 7 days but then stop growing.
30 citations
,
May 1999 in “Food and chemical toxicology” Procyanidin B-2 is safe to use on skin as a hair growth product.
29 citations
,
May 1986 in “Journal of Steroid Biochemistry” Androgens don't directly affect hair cell growth or protein production.
18 citations
,
April 2009 in “Journal of Chromatography A” Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
12 citations
,
January 1934 in “Proceedings of the Royal Society of London Series B Containing Papers of a Biological Character” Stretched hair has a similar structure to natural silk, showing hair's elasticity involves reversible changes within its molecules.