Fragrance Retention in Virgin and Bleached Caucasian Hair

Autor(es)

Medice, Andre ^[1] ; Lourenco, Carolina ^[2] ; Gasparin, Rebeca ^[2] ; Nakano, Adelino ^[2] ; Marsaioli, Anita J. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, BR-13083970 Campinas, SP - Brazil

^[2] Global Hair Care Ctr, BR-06715725 Symrise - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF COSMETIC SCIENCE; v. 69, n. 5, p. 363-370, SEP-OCT 2018.
• Citações Web of Science: 0

Resumo

Human hair, when bleached, undergoes oxidation of melamine granules and its structural proteins. This work aims to compare fragrance retention in both virgin and bleached hair, taking into consideration the interactions between fragrance compounds and hair before and after chemical modification. The bleaching process of straight dark brown Caucasian hair was carried out using a 4.5% wt. hydrogen peroxide solution at pH 9.5. Fragrance raw materials were incorporated in a shampoo formulation and applied on hair by washing, followed by rinsing. Hair was then let to dry under controlled conditions of temperature and humidity and the volatiles were collected by solid-phase microextraction and quantified by Gas Chromatography Mass Spectrometry (GC-MS). The more bleached the hair, the higher is the amount of sorbed substances during shampoo washing because of a higher number of holes in the hair structure, which increases its sorption capacity. Besides that, the impairments caused by oxidative reaction of hair surfaces are responsible for the faster evaporation of fragrant compounds and this behavior was compared with the loss of moisture of untreated and bleached hair. (AU)

• Processo FAPESP: 18/07978-0 - Processos multi-enzimáticos em cascata aplicados a síntese de alcaloides
• Beneficiário: Anita Jocelyne Marsaioli
• Modalidade de apoio: Auxílio à Pesquisa - Regular