Bumble and Bumble Sunday Shampoo Bumble and Bumble Sunday Shampoo (£22.50) is a weekly deep-cleaning shampoo that is especially great for washing away product and hard water residue. This classic, hard-working formula works well to give roots extra volume, too. Unfortunately, this one isn't suitable for colour-treated hair. Image Source: boots.com Bumble and Bumble Sunday Shampoo £22.50 from boots.com Buy Now