Unscented is made with only 3 ingredients, which is nice. I was able to check out the first two on the Environmental Working Group consumer products website: arrowroot and kaolin clay, are considered to have very low concerns for toxicity, so that checks out. I could not get much information about the 3rd ingredient, but if aspen bark extract is Populus Tremuloides Bark Extract, I would look that up on the EWG site and discuss it with the company if you have concerns. Certainly, the alternative of chamomile that some other companies with similar products uses has a similar rating, and can cause allergy. The powder is super fine, even finer than the corn starch we used for our own diapering. Especially because this is so fine, I wouldn't personally sprinkle it on a baby because of getting the powder airborne near the baby's face--instead, we sprinkled powder onto our own palm away from baby and smoothed it over skin just before diapering. The powder itself does seem to reduce skin friction, so it's probably great for adults who need baby powder, too, and don't want to smell like baby powder or use talc.