No, but I may be able to make a suggestion to help you out. I've been getting my Frontline from drugstore.com and have gotten some excellent deals. I always buy the 6 month box.
First, make sure you have a bing.com account. Go to bing.com and search for shampoo. That should bring up drugstore.com with a 25% cashback. Click on that link to go to drugstore.com. Once you get there, you can order anything you want (doesn't have to be shampoo), but I think the window is only open for 2 hours so you may want to figure out what you want before you actually get ready to order.
Once you make your selection, use a drugstore.com code. There are usually several floating around (you can google to find one). You will also get drugstore.com dollars that accumulate to use for other things.
FYI, I've used bing.com for a long time and really like it. For some reason, drugstore.com doesn't always credit the bing.com account as fast as it's supposed to do. I always just contact bing.com, and they always handle it immediately. No problems.
Good luck!