A biogenic amine found in a number of plants, including barley and several species of cacti. It’s alleged to be beneficial for fat/weight loss, due to its ability to stimulate the release of norepinephrine, although there is no research to confirm this claim. Hordenine (or “peyocactin” – as it was known) has antibiotic activity and was shown to inhibit the activity of penicillin-resistant Staphylococcus aureus.
The chemical name for hordenine is N,N-Dimethyltyramine. Hordenine is also found in trace amounts in Citrus aurantium (bitter orange).