How will I know when my hazelwood necklace is no longer working?
First, you will begin to notice the symptoms returning. You will also see that the extremities of the wood beads have started to darken. When this occurs you will then need to replace your old necklace as the ability of the necklace to absorb acidity is greatly diminished . Note that it is the flesh darkening and not the outer bark that indicates whether or not the wood has absorbed as much acidity as it can. If the outer bark darkens or starts peeling off, there is no need to be concerned. That is just a natural occurrence and will happen with normal wear and tear. It does not affect the woods ability to absorb acid at all. Below is an extreme example of the flesh of the hazelwood darkening due to maximum absorption being reached. Each necklace may or may not get as dark as this before needing to be replaced. The real guiding factor is the return of the symptoms.