They are mixtures of herbs and natural resins that can be used both as a personal perfume, rubbing them on the neck and wrists, and as scenters for cabinets and drawers, where it is advisable to store them inside the wooden boxes provided, as they can stain or grease. the garments, more specifically, if placed directly on top, without protections, since they are mainly resins.

in this product category, more specific ambers will also be gradually added, ambers that are primarily sold as personal perfume, ambers as ambient fragrances and those for wardrobes and drawers.

an example is given by ambergris which can be used both as incense and as a perfume, as reported on wikipedia:

In the past it was burned like incense, because it gave off a pleasant smell and had a reputation as a powerful aphrodisiac. It is also mentioned among the products of whaling in Herman Melville's Moby Dick and Marco Polo's "Il Milione". Historically it is a basic ingredient of the perfume industry and in the colonial period it was a considerable asset in the economy of Italian Somalia and other regions of the Horn of Africa.

The current rarity of the natural substance, due to the progressive reduction in the number of sperm whales due to indiscriminate fishing, has led the perfume industries to join together in the search for a synthetic substitute.

The substance is naturally produced as a biliary secretion to defend the intestinal mucous membranes of the sperm whale from the indigestible remains of the cephalopod molluscs, which the sperm whales feed on, hardening around the digestive residues and incorporating them. The main chemical constituent of ambergris is amreine and the attraction that its smell exerts is due to the high pheromone content similarly to other aromatic substances of animal origin, such as castoreum.

Ambergris is naturally excreted by the sperm whale through the feces, or, in cases of excessively large accumulations to be expelled through the fecal tract, it is occasionally regurgitated. In both cases solid masses are formed in the form of blocks which, once expelled, can float, pushed by currents, until they are found on the coasts; typically this happens in the Indian Ocean (in India or East Africa). Left to dry in the sun, it softens and acquires an excellent perfume and the property of fixing odors.

Fossil ambergris was found for the first time in Pleistocene clays in Umbria. It was recognized as such following geochemical analyzes, which revealed the presence in mineralized squid beaks of organic molecules compatible with this origin. 25 of these ichno-fossils have been found, in an area of 1,200 m2, characterized by considerable dimensions: they are structures rich in calcium carbonate, about 30-60 centimeters high and 60 centimeters to 1.2 meters wide, with a shape concentric helical.