Hazelwood and amber have been used for centuries for teething discomfort. Additionally, hazelwood can also be effective on many skin conditions. Because the necklaces/bracelets help reduce high acidity levels, they can help with symptoms such as:
Reduces upset stomach during pregnancy.
Depending on each individual's level of acidity, it will oxidize at different frequency. The necklace will need to be replaced every few months when you have noticed that the wood has darkened.