Process for the preparation of active principles on thermal water and compositions comprising them

摘要

The invention relates to a process for the preparation of a cosmetic or dermatological active principle, comprising the culturing of at least one nonphotosynthetic and nonfruiting filamentous bacterium on a medium comprising at least one nonsulphurous mineral and/or thermal water.;It also relates to a cosmetic or dermatological composition comprising at least one bacterium of the genus Vitreoscilla or one of its extracts.