UV filters for hair protection.
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.
Bernhardt
P
P
Henkel KGaA, WEK-KKH, D-40191, Düsseldorf, Germany.
Giesen
M
M
Hollenberg
D
D
Hubbuch
M
M
Kalhöfer
V
V
Maier
H E
HE
Martin
V
V
Münzing
H P
HP
Oelschläger
T
T
Schwan
A
A
Sperling
K
K
Tennigkeit
J
J