24oz Head and Shoulders Duo $11 Get it at Amazon Check It Out Next best price is $20 shipped. Brad's Deals Editor Melissa, Details This pack of Two 23.7 fl oz Head and Shoulders Classic Clean 2-in-1 Anti Dandruff Shampoo and Conditioner from Amazon.com drops 30% from $15.64 to $10.95 when you enter the code 30SDHNS at checkout. The next best price we can find for this set is $22 shipped. Plus shipping is free when you spend $25 or use a Prime account or a free Prime trial. Otherwise, it adds $5.99. You can also save an extra 5% and get free shipping when you choose Subscribe and Save. This is safe for colored or chemically treated hair. Sales tax is charged in most states. Advertiser Disclosure How To Get It Enter the code 30SDHNS at checkout to get 30% off.