1 citations
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March 2019 in “International Journal of Cosmetic Science” In this study, researchers developed a regression model that reasonably predicts consumer-perceived hair breakage using various parameters such as hair smoothness, detangling forces, extensional strength, and hair density among Indian women.
This study found that coconut oil may protect the cuticle of chemically treated hair, which tends to be damaged compared to untreated hair.
2 citations
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January 2015 in “Sen'i Gakkaishi” This study found that washing hair after reduction in a permanent waving process allows for significant reformation of disulfide cross-links, enhancing the strength and elasticity of hair fibers.
1 citations
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March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
August 2018 in “Journal of The American Academy of Dermatology” Aging significantly affects the hair and scalp of nonbalding Caucasian women, with changes that differ from male pattern baldness.