I don’t usually write reviews unless I’m thoroughly impressed and that is the case with this product! I bought it in hopes of helping my 4mo old baby sleep better at night. He had been waking up about every hour for almost a month because of discomfort (which I can’t for sure say is teeth) andI was desperate to try anything! Well, since putting it on he has been sleeping so much better and only getting up once a night to nurse. We went from being up 6x a night to only once and I give credit to this amber necklace!