Tattoo dyes — especially red dye — can cause allergic skin reactions, resulting in an itchy rash at the tattoo site. (religion.blogs.cnn.com)
There have been reports of allergic skin reactions to disposable diapers, and some parents worry that this is caused by the gel, but it's not likely. (babycenter.com)
Some may trigger allergic skin reactions so if you are chemical sensitive you'll need to consider this carefully. (nourishholisticnutrition.com)