Ok, did a search cause I had no idea what it was either. Found this: "As luxurious and as coveted as the edible variety served in fine restaurants, our Bath Caviar will serve up a skin-soothing, fragrant aromatic therapeutic bath. Bath caviar is a cross between bath salts and bubble bath. Drop a handful of these sparkling beads into your tub or jacuzzi under warm running water and watch as they dissolve releasing their natural, skin-soothing moisturisers." Hope this helps!