Source: https://www.amazon.com/GreenGreenStevia-Whole-Dried-Stevia-Leaves/dp/B00J8ON86M/ref=as_li_ss_tl?ie=UTF8&qid=1483310790&sr=8-3&keywords=stevia+leaf&linkCode=ll1&tag=wellnessmama-20&linkId=cbe1695685bb78bee6759a28e2876588