Crumble your bubble bar under the tap as you're filling your bath to create your bubbles. You can use half or all of the bar, depending on how bubbly you would like it.
Ingredients
Sodium Bicarbonate, Potassium Bitartrate, Cocamidopropyl Betaine, Sodium Lauryl Sulfoacetate, Ricinus, Communis (Castor) Seed Oil, Glycerin, Parfum, *Hexyl Cinnamal, CI 45100/CI 19140 (colour)