Daily hair care may cause holes in hair fibers.
March 2010 in “International Journal of Cosmetic Science” Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
January 1991 in “Journal of Society of Cosmetic Chemists of Japan” Hair treatments can damage hair by changing its chemical content.
35 citations
,
March 2007 in “Skin Research and Technology” The conclusion is that exogen is a unique hair cycle phase and the new sampling method specifically targets this stage, which may help in future hair loss research.
24 citations
,
January 2006 in “Skin Pharmacology and Physiology” Finasteride reverses early hair loss and promotes growth.
5 citations
,
September 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
1 citations
,
July 2020 in “Bezmialem science” Reflexology massage helps hair regrowth in women after chemotherapy.
January 2011 in “Web journal anti-aging medicine/Anti-aging medicine” KGS1 tablets improved skin and hair health.
67 citations
,
July 1985 in “British journal of dermatology/British journal of dermatology, Supplement” Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.
26 citations
,
December 1981 in “British journal of dermatology/British journal of dermatology, Supplement” Cyproterone acetate reduced hair growth in most hirsute females and made hair softer, thinner, and lighter.
24 citations
,
December 2011 in “Journal of The American Academy of Dermatology” Caucasian hair is denser, but Asian hair is thicker in female pattern hair loss patients.
23 citations
,
July 1989 in “Postgraduate medical journal” Spironolactone did not make hair thinner in women with excess hair growth.
16 citations
,
June 2017 in “PLoS ONE” A 6-group hair classification is more reliable for drug testing than an 8-group system.
13 citations
,
August 1995 in “Australasian Journal of Dermatology” Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.
12 citations
,
December 2017 in “Scientific reports” The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
11 citations
,
November 2015 in “Skin Research and Technology” Women's hair grows faster and thicker than men's, but hair growth slows for both genders with pattern hair loss.
11 citations
,
October 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.
11 citations
,
February 2005 in “Clinical pharmacology and therapeutics/Clinical pharmacology & therapeutics” Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
9 citations
,
January 2018 in “Dermatologic Therapy” The HairLux device safely and effectively promotes hair growth in people with hair loss.
7 citations
,
October 2018 in “Journal of Craniofacial Surgery” About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
4 citations
,
November 2017 in “Journal of Cosmetic Dermatology” Certain polymers can stick to hair and increase volume, working best at a pH of 7 to 9.
2 citations
,
February 2020 in “Journal of Plastic Surgery and Hand Surgery” Good-looking donor sites for hair transplants usually have higher hair density and thicker hair.
2 citations
,
January 2014 in “Turkish Journal of Medical Sciences” TrichoScan effectively diagnoses different types of hair loss and is linked to low iron stores in patients.
Understanding hair surface properties is key for effective hair care products.
1 citations
,
June 2019 in “Current developments in nutrition” A combination of arginine silicate complex and magnesium biotinate improves hair and nail growth in rats.
October 2025 in “Dermatology and Therapy” Nutrafol® nutraceuticals improve hair thickness and strength.
June 2022 in “International journal of drug delivery technology” Nebivolol cream may be a promising hair loss treatment by improving blood flow and nourishing hair follicles.
May 2023 in “Pharma xplore : jurnal sains dan ilmu farmasi” Hair tonic with equal parts Moringa and rambutan leaf extracts grew rabbit hair longer and heavier than the control product.
81 citations
,
August 2011 in “Journal of The American Academy of Dermatology” Latanoprost 0.1% may effectively treat hair loss.