40 citations,
June 2013 in “Journal of cosmetic dermatology” Brazilian keratin treatments can straighten hair but may contain harmful formaldehyde.
32 citations,
January 2018 in “American Journal of Clinical Dermatology” Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.
20 citations,
January 2015 in “Current problems in dermatology” Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.
8 citations,
January 2008 in “Pediatric dermatology” Hair gels may cause split ends in children.
7 citations,
July 2019 in “Acta Orthopaedica et Traumatologica Turcica” Hair tourniquet syndrome in infants can be treated successfully with immediate hair removal.
5 citations,
November 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.
January 1997 in “Elsevier eBooks” The document explains how shampoos clean, rinses condition, one-step shampoos offer convenience, and hair growth promoters aim to prevent hair loss, emphasizing the importance of scientific evidence for their effectiveness.
7 citations,
January 2014 in “Pediatric and Developmental Pathology” Over half of the children had abnormal hair under a microscope, with many having genetic hair conditions.
December 2022 in “Kristu Jayanti Journal of Core and Applied Biology (KJCAB)” Scalp hair characteristics vary across different regions of India and can help identify a person's origin.
20 citations,
January 2019 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
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.
5 citations,
March 2012 in “Microscopy Research and Technique” UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
36 citations,
December 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
4 citations,
July 2016 in “Journal of cosmetic dermatology” Dermatologists should use hair relaxers carefully to avoid hair and scalp damage, following specific guidelines for application and maintenance.
3 citations,
June 2008 in “Springer eBooks” Hair care products clean, protect, style, color, and change hair structure.
April 2024 in “Advances in Redox Research” Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.
Using enzymes to link proteins makes hair repair treatments more effective and long-lasting.
8 citations,
June 2020 in “Colloids and surfaces. B, Biointerfaces” Heating hair proteins changes their structure and may improve their blood clotting ability.
7 citations,
October 2019 in “Frontiers in bioengineering and biotechnology” Fusion proteins can protect hair from heat damage.
2 citations,
March 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
March 2024 in “Clinical, cosmetic and investigational dermatology” Skin Radiance Collagen improved skin and hair health in adult females.
76 citations,
January 2007 in “American Journal of Clinical Dermatology” Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.
22 citations,
July 2003 in “Military medicine” New treatments are available for managing ingrown hair inflammation.
16 citations,
April 2012 in “Journal of mammalogy” Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.
2 citations,
June 2018 in “Cosmetics” AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
1 citations,
November 2014 The document explains hair and nail biology, common hair loss conditions and treatments, oral and genital skin diseases, and the risks and treatments associated with squamous cell carcinoma.
Nanocarriers with plant extracts show promise for safe and effective hair growth treatment.
3 citations,
February 2023 in “ACS omega” Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.
January 2007 in “Sen'i Gakkaishi” Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.