I, too, have been looking for a clean source of bulk mimosa pudica, and have not found a source I know I can trust. Mountain Rose doesn’t have it. I found one place that sells it in bulk – Ecuadorian Rainforest – but I don’t know how to go about verifying its purity, not having any experience with them. I want to use it for parasite cleanse and also maybe for worming my sheep. If a good source has been found, please pass the word along. Thanks.