Oxymetazoline
"I've used this product for about 15 years, as I have chronic nasal congestion at night. I would have given it a 9 until the new bottle design, which is so HORRIBLE I have to give it a 2. I love your product. It would be nice if I could still use it. The cap is wayy too hard to wrestle off for people who don't have great hand dexterity, and that whole "line up the tiny white plastic groove with the other tiny white plastic groove" thing is awful. I need to be able to use it in the dark without waking up my spouse. I will switch to another brand if I must."