Agnus castus contains several different constituents, including flavonoids, iridoid glycosides, & terpenoids. The whole fruit extract, rather than one of its individual constituents. Herbs have been used traditionally in every culture throughout history and there has been considerable scientific research over recent years to identify the properties of these plant extracts. There are many different ways of consuming herbs & Viridian offers organic tinctures, organic whole herb powders & standardised extracts. Our standardised extracts are combined with whole herb to offer the best of traditional herbalism together with the latest in scientific innovation. VIRIDIAN PURITY: 100% Active ingredients. This vegan product is free from gluten, wheat, lactose, added sugar, salt, yeast, preservatives or artificial colourings. Non-irradiated. Against animal testing