Amber necklaces

Tymber

Alright guys, what are your thoughts on the amber teething /pain reducing necklaces? Do they really work for your little one? Is there a huge noticeable difference? What brand do you use? At what age did you start using them?

I'm just not convinced about them but they have been reccomended to me by a friend, looking for others personal experience before I purchase.

Thanks in advance mommies!