Many of them are really effective, but I recommend the product that works for you based on the following reasons.
Many people who snore are very sensitive to noise. If they feel too noisy, they can't fall asleep. They will be awakened by the noise or the room will start to move. To make snoring less annoying, many people will try to block the noise by snoring, by using a snoring alarm or by listening to loud music (a snoring music player will also block the noise). The following snoring anti-snoring products were not effective for me, but they are effective for other people who have some sort of hearing problem. There are many different snoring anti-snoring products out there, and not all of them are good for everyone. Some people who have problems with loud noise have a harder time sleeping. Some people don't like to sleep in bed with someone else who snores. Some people have ear infections, some people have chronic lung diseases, some people are allergic to certain drugs, some people can't afford the expensive products. The list goes on. If you find a product you like but you're not sure it will work, see if it's available through a physician.