63 citations
,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
3 citations
,
September 2005 in “International Journal of Cosmetic Science” Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.
January 2020 in “Indian dermatology online journal” Hair styling products can damage hair over time.
75 citations
,
December 2011 in “British Journal of Dermatology” Female pattern hair loss can be treated with medications, surgery, and cosmetic products, considering its psychological impact.