Significant Reduction of Body Odor in Older People with a pH 4.0 Emulsion

by Michael Kemper, Stephan Bielfeldt, Ulrich Knie, Klaus-Peter Wilhelm, Christoph Abels
Published 2015-05-01

New methods for assessing secondary performance attributes of sunscreens suitable for professional outdoor work

by Marc Rocholl, Patricia Weinert, Stephan Bielfeldt, Sabrina Laing, Klaus Peter Wilhelm, Claas Ulrich, Swen Malte John
Published 2021-07-01