Inventor

KONRAD EUEGEN

DE2 patents

Patents

2 patents

US4528283AJul 9, 1985

Cosmetic composition based upon chitosan derivatives, new chitosan derivatives as well as processes for the production thereof

WELLA AG60 citations94

US4452603AJun 5, 1984

Process for dyeing hair and composition therefor

WELLA AG8 citations69