I'm just learning about cotton wicks, and for people who are curious/interested in organic vs. regular sterile cotton balls, I'll post an infographic below that was shared by another ECF member. I found it pretty convincing:
I'm going to be boiling it in distilled water as well, which, yeah, I find pretty amusing about myself, since I smoked cigarettes with their 1000s of chemicals for so long, but hey! -- I figure as long as I'm doing the better thing now, why not take the couple of extra steps on something that you only have to do once to last for such a long time (like what? once a year, maybe? Even longer? I don't even know).
I'm not proselytizing about this, though; I'm just learning now myself, and sharing what other kind folks here have shared with me.