I have been using this product along with Oxy-Powder whilst doing a cleanse recently and have found it has relieved some of the brain fog and other unpleasant symptoms I expect when cleansing. I've been using 1 drop a day and will continue to do so after the cleanse. As it's such a small bottle, I've forgotten to take it on a number of occasions however I do feel mentally clearer when I do - I've now set myself a daily reminder!