Health Canada seized “21st Century DHEA” because it is labelled to contain dehydroepiandrosterone (DHEA), a controlled substance that may pose serious health risks. “21st Century DHEA “ is an unauthorized health product promoted to provide “support for the immune system, mental well-being & energy levels.” The product was seized from Alternate Root Organics (16 Athabasca Street West) in Moose Jaw, Saskatchewan.