my son is 13 and he had it done on his wrist it looks just like the medic alert bracelette  and the paramedics did see it and they said wow hes a bit young for a tattoo but thats an awsom way to save someones life . the bracelette he has is always getting snagged on something and rips off this way its always there .. but make sure it says cahyperplasia because there is a hypo also