Bumble and Bumble's Bb. Sunday Shampoo is a weekly detox in a bottle that relieves your hair of built-up pollutants, excess oil and product residue for a beautifully fresh feeling. Formulated with a nourishing blend of botanicals, including ginseng extract and rosemary leaf extract, this powerful shampoo works to give hair a deep clean ' ideal for weekly use just prior to masques and chemical treatments.