Although I'm not losing hair at my age yet, I've read that the thickening treatment actually adds a lot of volume at the roots, which is something I would really like.
Ingredients for anyone interested.
Pantene also has a rebate program: if you spend $20 or more on their Expert Collection, you can get $10 back. I'm not sure if Pantene will accept a purchase from Costco though. The fine print states, "No requests from groups, clubs, or organizations will be honored. " If anyone knows, please let me know!