Source: https://www.amazon.com/Capsules-Nitenpyram-capsules-SHIPPING-ingredient/product-reviews/B00N43M1NY/?_encoding=UTF8&camp=1789&creative=390957&linkCode=ur2&showViewpoints=1&sortBy=byRankDescending&tag=fleascience-20&linkId=FCDESTBU5L52XJFY