Resin incense Petrus is a mixture of red, black and clear glazed gum granules. Petrus has a fragrance that is a very classic combination of different types of incense, with sweet, floral hints. Petrus is a blend of three types of gum granules (Frankincense, Myrrh and Benzoin), sometimes called Three Kings blend. These granules are obtained from different gum trees, in particular the African Boswellia Papyrifera and Commiphora Myrrha and the Asian Styrax Benzoin. The granules have been washed in perfume oils and are colored with pigments which are all EU-approved. Petrus is an incense meant for use in rituals. Burning incense is a rich sensory experience and it should preferably be burned on charcoal tabs specifically designed for incense burning. This incense should not be used as a food additive or for pharmaceutical purposes. Sold in 1oz tins, which are either round or square depending on availability.