Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
March 2003 in “BJOG: An International Journal of Obstetrics and Gynaecology” Mothers and newborns with dental fillings have higher mercury in their hair, but adding fillings during pregnancy doesn't raise mercury levels further.
August 1998 in “Dermatologic Surgery” Dr. George A. Farber recommends using follicular unit transplantation for hair restoration because it gives a more natural look and has fewer problems compared to the older miniflap technique.
October 1987 in “Clinics in Dermatology” Hair transplantation is beneficial if the right patients are chosen and the procedure is done carefully.
September 2010 in “Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii” TrichoScan is reliable for counting and measuring hair density but may not accurately assess hair types in women with hair loss.
200 citations,
November 1997 in “Planta” Calcium affects where root hairs grow, but other unknown factors determine their growth direction.
157 citations,
October 2003 in “Development” AXR3 and SHY2 genes control the growth and timing of root hair development in plants.
80 citations,
April 2011 in “Plant physiology” White lupin uses specific genes to grow root hairs and access phosphorus when it's scarce.
42 citations,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
32 citations,
January 2010 in “Dermatology” Combining laser hair removal with topical eflornithine is recommended for better results in treating unwanted facial hair.
26 citations,
October 2017 in “Scientific reports” A special microbe helps plants absorb rock phosphate by growing on their root hairs.
17 citations,
October 2012 in “Dermatologic clinics” Treating excessive hair in women requires a holistic approach, including medical, aesthetic, and emotional support.
15 citations,
March 1997 in “International Journal of Dermatology” Selenium sulfide in anti-dandruff shampoos can turn hair green.
11 citations,
June 2017 in “Journal of cell science” AGD1's PH domain is essential for its role in root hair growth and polarity.
11 citations,
February 2008 in “British journal of nursing” Idiopathic hirsutism causes excessive hair growth in women, can be treated with medication and hair removal, but cannot be fully reversed.
7 citations,
June 2021 in “Amino acids” Human hair protein modifications could potentially indicate heart disease risk.
7 citations,
July 2011 in “Survey of Ophthalmology” The document concludes that periocular hair disorders have various causes and treatments, and proper evaluation by specialists is important for management and prognosis.
3 citations,
April 2011 in “Microscopy research and technique” Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.
July 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Chitosan slows root hair growth and causes a buildup of callose at low concentrations, but at high concentrations, it only inhibits growth without callose buildup.
Different scalp and hair disorders are more common in certain ethnic groups, with the most common being androgenetic alopecia, which is treated with medications like minoxidil and finasteride.
Some plant-based ingredients may help with hair growth and care, but more research is needed to confirm their effectiveness.
April 2011 in “Global journal of health science” Spironolactone effectively makes hair shafts thinner in women with excessive hair growth.
212 citations,
September 2008 in “Journal of The American Academy of Dermatology” Minoxidil and finasteride treat hair loss in men, while minoxidil treats hair loss in women.
147 citations,
April 1994 in “Drug Safety” Some drugs can cause hair loss or increase hair growth, but these effects are usually reversible when the drug is stopped.
59 citations,
November 2015 in “International Journal of Cosmetic Science” Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.
45 citations,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
19 citations,
January 2007 in “Dermatology” Unwanted facial hair significantly impacts over 40% of women's psychological and social well-being, and various treatment options are available.
7 citations,
February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
4 citations,
January 2011 in “Analytical Letters” The method quickly and accurately measures minoxidil in drugs, comparable to standard techniques.
January 2012 in “Human health handbooks” Traditional Indian remedies are used for hair health, but more scientific evidence is needed to prove their safety and effectiveness.