There is evidence that dog and cat spot ons with Fipronil can be affecting human embryos. Fiprolin is the main component of Frontline and Itch Flea which are market leading. Fiprolin is banned for use in agriculture since 2018 but still is licenced for pets. There are over 500 products with Fiprolin which can be freely acquired via Internet without any adequate warning about environmental concerns. Increasingly Fiprolin is found in our waterways where it causes havoc for aquatic fauna.