Here's a review of BioWick. It's 100-percent organic cotton wick that's ready to go out of the bag. Unlike organic cotton yarn, BioWick doesn't need to be boiled. Unlike sterile cotton or gauze, chemicals aren't used to grow or treat it. While it's easy and convenient, BioWick does have a premium price compared to what yarn, gauze, and cotton balls cost.
Full review here.