Sias Hamman obtained the BPharm, MSc (Pharmaceutics) and PhD (Pharmaceutics) degrees from North-West University and is currently a Professor in Pharmaceutics at the School of Pharmacy at North-West University, South Africa. His research interests include nose-to-brain drug delivery, in vitro and ex vivo models to assess intranasal drug delivery, functional excipients, beneficial herb-drug interactions and biopharmaceutical aspects of natural compounds.

Pieter started his career as a clinical psychologist in the public sector in 2003, initially working in the military, before moving into the private sector.