title: UV filters for hair protection.
abstract: Synopsis Hair damage, caused by sunlight, and the possibility to protect hair against sunlight by means of cosmetic formulations was studied. For this, five UV-filters were tested: benzophenone-3 (UV-A/UV-B); benzophenone-4 (UV-A/UV-B); phenylbenzimidazole sulfonic acid (UV-B); butylmethoxydibenzoylmethane (UV-A); octyl dimethyl PABA (UV-B). The stability of the UV-filters was tested as pure substances as well as in two cosmetic formulations: a setting lotion and a shine spray. The degree of decolouration and stress strain behaviour were determined. The benzophenones had the best protection ability both on colour and on morphology. Stability data and UV-spectra are discussed.
authors.affiliation: Henkel KGaA, WEK-KKH, D-40191, Düsseldorf, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Bernhardt
authors.forename: M
authors.initials: M
authors.lastname: Giesen
authors.forename: D
authors.initials: D
authors.lastname: Hollenberg
authors.forename: M
authors.initials: M
authors.lastname: Hubbuch
authors.forename: V
authors.initials: V
authors.lastname: Kalhöfer
authors.forename: H E
authors.initials: HE
authors.lastname: Maier
authors.forename: V
authors.initials: V
authors.lastname: Martin
authors.forename: H P
authors.initials: HP
authors.lastname: Münzing
authors.forename: T
authors.initials: T
authors.lastname: Oelschläger
authors.forename: A
authors.initials: A
authors.lastname: Schwan
authors.forename: K
authors.initials: K
authors.lastname: Sperling
authors.forename: J
authors.initials: J
authors.lastname: Tennigkeit