I used mine both morning and night with slightly hotter water and I used a medium strength bristle toothbrush as I found the soft brush it comes with aided in leaving charcoal on my gums. Additionally, it took me about a week to get used to it all including how to eliminate mess. Now I just brush and when I rinse my mouth as normal (with Listerine + water) it would also rinse the sink. It also helped when I brushed without opening my mouth so much and to breathe through my nose and not my mouth. I have now been using this for about 3 weeks and prior to starting, I cut out teeth staining food and drinks like soft drinks, coffee and smoking. This experience is however based of my own methods of the routine. I have also found that the oil for the mornings helped add a layer of barrier to my teeth against any food or drinks I would have. My body has loved me for the change this has helped me bring!