We started using this for my daughter when she was 10 months old...and started sleeping poorly. We wondered if teeth were to blame. She went from waking up multiple times a night...to sleeping through the night the night after we put it on her! A few nights later, she woke up once, but I was happy with any sleep!
A few months ago, I was incredibly sick in my first trimester of the next pregnancy. A friend recommended wearing the amber necklace to help with the nausea. I went from throwing up every single day to throwing up every three days! I lost the necklace a couple weeks into using it...and went back to throwing up every day. Broke down and bought a new one...and am back to throwing up every three days.
Just stating observations, what I saw in my own household. I'm a believer in the power of amber!