Created by nurse Rene M. Caisse. Essiac is an old formula used to create an amazing supplement. This natural herbal formula is meant to help the immune system. Given its potency and quality, the item is certified by Health Canada. Staying true to its original formula, the remedy is still being produced in Canada and is shipped all over the world. Due to the fact it was made from herbal ingredients, there is no side effect for the body. Instead, you will only experience the positive benefits when using this amazing natural supplement.