Baltic adult amber necklaces are made from natural Baltic amber, a fossilized tree resin, and are often worn for their potential health benefits. The necklaces are typically designed to be worn close to the skin, allowing the body heat to release the amber's oils, which are said to have anti-inflammatory and pain-relieving properties. Some adults wear these necklaces to help alleviate symptoms of chronic pain, arthritis, and anxiety, although it's essential to note that the scientific evidence supporting these claims is limited, and more research is needed to confirm their effectiveness. Despite this, many people find the necklaces to be a natural and attractive alternative to traditional pain relief methods.