We've all seen products recommended by others that just didn't live up to the hype for you. Here's some of mine:
Trilogy Rosehip Oil - I love other facial oils, but this left my skin feeling tight
MAC lipsticks - the colour range is amazing, but I find them all so drying, even the non-matte formulas. I have about 6 and there's not one I would repurchase
Clarins Hand Cream - less moisturising than the Vaseline Intensive Care I'm currently using