I'm generally a very health-conscious person, admittedly with the exception of makeup. For adult women, it's almost impossible to find decent makeup with a guarantee that there's no lead or some ingredient that is not super safe. In that regard, though, if one is that worried about a few pollutants touching the skin once in a blue moon, then just google how to make your own organic face paint out of veggies or something. If you're going to use this on your kids OFTEN, I would advise against it because some claim there is lead in this paint (I haven't verified myself). But for a few occasions just a few times a year for a couple hours? Fuggadaboudit. There's probably way more junk landing on our skin on a daily basis just from air pollution and other stuff. Heck, we're getting too much fluoride from the water we bathe in constantly. My point is, can't live in a sterile bubble with your organic chia seed cake and have your face paint party, too.