Stefan Hettwer

Zürich

Switzerland

Senior R&D Manager of Cosmetic Actives

Stefan Hettwer, Ph.D. is the senior R&D manager of cosmetic actives with RAHN AG.

This 'Expert Opinions' focuses on anti-inflammation, holistic care and adaptogenic traditional medicine from industry experts.

Expert Opinions: Skin Health and Immunity

This "Expert Opinions" focuses on anti-inflammation, holistic care and adaptogenic traditional medicine from industry experts.