These describe either the company or the product. Some of the descriptors could be mineral water, cough syrup, chicken soup, suntan lotion, anti-wrinkle cream, deo-spray etc. Evocative words can be used as descriptors, e.g. thirst quencher, hand-picked cashew-nuts, roasted pistachio, Darjeeling tea. If the brand name itself is very descriptive, it does not need a byline of a descriptor.