Work great! Yes, they slide and instructions say to lie down while using. I like to use them in the morning and I don't want to lie down, but they will slide down. Solution: I used a pair of glasses to hold them in place! I don't have to lie down and they stay in place! Re rash someone mentioned: If I use them everyday, I eventually break out in a rash. The instructions say use 3 days in a row, then once a week. If I only use 3 days in row, I don't get the rash.
Keep in the fridge!
These are great to have around and last more than one use if you keep in the package in the fridge.