122 citations
,
October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
64 citations
,
April 1972 in “American Journal of Clinical Nutrition” Hair chromium levels reflect nutritional status after standard washing.
33 citations
,
January 2017 in “Psychoneuroendocrinology” Hair dyeing and washing frequency do not affect hair cortisol levels.
4 citations
,
January 2021 in “Skin appendage disorders” Washing hair daily is better and preferred, with no negative effects.
2 citations
,
January 2022 in “Clinical, Cosmetic and Investigational Dermatology” The refined wash test is a reliable way to measure daily hair loss and can tell the difference between different types of hair loss.
1 citations
,
December 2021 in “International journal of research in dermatology” Dermatologists should learn more about shampoos to better treat hair and scalp issues.
February 2025 in “Journal of Forensic Sciences” Sonication washing reduces nuclei in hair roots, affecting DNA extraction.
4 citations
,
January 2017 The pull and wash tests are simple, cost-effective ways to diagnose hair loss severity and type.
2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
14 citations
,
May 2013 in “Experimental Dermatology” The modified wash test is better than TrichoScan® for diagnosing hair loss.
21 citations
,
January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
7 citations
,
January 1981 in “Springer eBooks” Certain small molecules and polymers can change hair's physical properties and how it feels by affecting the bonds within the hair.
6 citations
,
January 2011 in “PubMed” The document concludes that most patients with endocrine disorders experience diffuse, non-scarring hair loss, with scarring hair loss being rare.
3 citations
,
September 2020 in “Journal of cosmetic dermatology” Coconut oil makes hair stronger and more flexible than mineral oil.
2 citations
,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
2 citations
,
December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
1 citations
,
December 2011 in “Journal of the American Academy of Dermatology” Using hair oil/grease may be linked to dandruff in African American girls.
December 2022 in “Research journal of topical and cosmetic sciences” TRICHONEM™ hair wash powder effectively treats dandruff and promotes hair growth.
October 2020 in “International Journal of Research in Dermatology” Injecting your own platelet-rich plasma can improve hair loss treatment results with minimal side effects.
February 2010 in “Journal of The American Academy of Dermatology” Social or cultural norms, not hair type, more likely influence how often people wash their hair.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Older age increases positive hair alcohol test results, and chest hair is a good alternative for testing; season affects results, with higher levels in winter.
6 citations
,
May 2003 in “PubMed” Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
2 citations
,
July 2008 in “Hair transplant forum international” MRSA infections can occur in hair transplant surgeries, so it's important to test for it before treatment, keep everything clean, and follow treatment based on test results.
June 2024 in “Al- Anbar Medical Journal” Acute telogen effluvium can be resolved by addressing causes, but chronic telogen effluvium is harder to treat.
January 2015 in “Springer eBooks” Understanding hair structure and growth is key for diagnosing hair diseases accurately.
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.
84 citations
,
February 2013 in “Clinica chimica acta” Hair mineral analysis might help diagnose diseases early, but standard methods are needed.
18 citations
,
December 2016 in “Phytomedicine” Curcuma aeruginosa essential oil effectively reduces hair growth and lightens underarm skin.
14 citations
,
January 1999 in “Dermatology” Hair shedding in children is normal and increases with age.