Please be advised that Leafwood uses 100% natural recycled wood that has not been treated with any kind of chemicals. There are very few people who might experience an allergic reaction to woods. We suggest that while you are wearing the watch within the first few weeks, you should monitor your skin. In the remote possibility that you do experience any discomfort on your wrist or any kind of itch or rash, please stop wearing your watch and consult your doctor. Leafwood disclaims all responsibility for any resulting damages, injuries or expenses related to causes created by wearing any wooden watch from Leafwood.