Fragrances and colors are often added to bath salts; in fact, one purpose of salts is as a vehicle or diluent to extend fragrances which are otherwise too potent for convenient use. Other common additives to bath salts are oils (agglomerating the salts to form amorphous granules, the product being called "bath beads" or "bath oil beads"), foaming agents, and effervescent agents.
Bath salts are often enhanced with fragrances and colors, serving as a vehicle or diluent to extend the potency of these scents.  Other additives commonly found in bath salts include oils, which contribute to the formation of "bath beads" or "bath oil beads," foaming agents, and effervescent agents.